Ma L

References (87)

Title : Prophylactic and therapeutic inhalation of two essential oils ameliorates scopolamine-induced cognitive impairment in mice - Wang_2024_Nat.Prod.Res__1
Author(s) : Wang W , Yang J , Liang D , Yao L , Ma L
Ref : Nat Prod Res , :1 , 2024
Abstract : Clover and lemongrass essential oils of contrasting composition, at three concentration levels (1%, 5%, 10%), were administrated via prophylactic and therapeutic inhalation to scopolamine-treated mice. Chemical analysis showed that clover oil was dominant in eugenol (47.69%) and lemongrass free of eugenol but mainly containing monoterpenoids of comparable proportions. Animal behavioural and brain biochemical tests showed that injection of scopolamine caused memory and learning deficit in mice while prophylactic and therapeutic inhalation of two oils at moderate to high concentrations all obviously reversed the cognitive impairment via inhibiting acetylcholinesterase activities, oxidation and inflammation. Lemongrass essential oil with diverse monoterpenoids can be as effective as or a little bit more potent than eugenol-rich clover essential oil possibly due to the synergistic effect of various monoterpenoids. These findings implied that sniffing of such aroma recipes could be a promising complementary approach for the mitigation of Alzheimer's disease-related cognitive impairment.
ESTHER : Wang_2024_Nat.Prod.Res__1
PubMedSearch : Wang_2024_Nat.Prod.Res__1
PubMedID: 38557211

Title : Use of the Serum Level of Cholinesterase as a Prognostic Marker of Nonfatal Clinical Outcomes in Patients Hospitalized with Acute Exacerbations of Chronic Obstructive Pulmonary Disease - Chen_2024_Can.Respir.J_2024_6038771
Author(s) : Chen Z , Zha L , Hu B , Xu B , Zuo L , Yang J , Chu Z , Ma L , Hu F
Ref : Can Respir J , 2024 :6038771 , 2024
Abstract : INTRODUCTION: Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) contributes to a poor prognosis. Reliable biomarkers to predict adverse outcomes during hospitalization are important. AIM: To investigate the relationship between the serum cholinesterase (ChE) level and adverse clinical outcomes, including hypoxemia severity, hypercapnia, duration of hospital stay (DoHS), and noninvasive ventilation (NIV) requirement, in patients with AECOPD. METHODS: Patients hospitalized with AECOPD in the Wuhu Hospital of Traditional Chinese Medicine between January 2017 and December 2021 were included. RESULTS: A total of 429 patients were enrolled. The serum ChE level was significantly lower in patients with hypercapnia, who required NIV during hospitalization and who had a DoHS of >10 days, with an oxygenation index < 300. The ChE level was correlated negatively with the C-reactive protein level and neutrophil-to-lymphocyte ratio and correlated positively with the serum albumin level. Multivariate logistic regression analysis indicated that a serum ChE level of >=4116 U/L (OR = 2.857, 95% CI = 1.46-5.58, p = 0.002) was associated significantly with NIV requirement. CONCLUSIONS: The serum ChE level was correlated significantly with complicating severe hypoxemia, hypercapnia, prolonged DoHS, and the need for NIV in patients hospitalized with AECOPD. The serum ChE level is a clinically important risk-stratification biomarker in patients hospitalized with AECOPD.
ESTHER : Chen_2024_Can.Respir.J_2024_6038771
PubMedSearch : Chen_2024_Can.Respir.J_2024_6038771
PubMedID: 38505803

Title : Regulation of soluble epoxide hydrolase in renal-associated diseases: insights from potential mechanisms to clinical researches - Gao_2024_Front.Endocrinol.(Lausanne)_15_1304547
Author(s) : Gao P , Cao Y , Ma L
Ref : Front Endocrinol (Lausanne) , 15 :1304547 , 2024
Abstract : In recent years, numerous experimental studies have underscored the pivotal role of soluble epoxide hydrolase (sEH) in renal diseases, demonstrating the reno-protective effects of sEH inhibitors. The nexus between sEH and renal-associated diseases has garnered escalating attention. This review endeavors to elucidate the potential molecular mechanisms of sEH in renal diseases and emphasize the critical role of sEH inhibitors as a prospective treatment modality. Initially, we expound upon the correlation between sEH and Epoxyeicosatrienoic acids (EETs) and also addressing the impact of sEH on other epoxy fatty acids, delineate prevalent EPHX2 single nucleotide polymorphisms (SNPs) associated with renal diseases, and delve into sEH-mediated potential mechanisms, encompassing oxidative stress, inflammation, ER stress, and autophagy. Subsequently, we delineate clinical research pertaining to sEH inhibition or co-inhibition of sEH with other inhibitors for the regulation of renal-associated diseases, covering conditions such as acute kidney injury, chronic kidney diseases, diabetic nephropathy, and hypertension-induced renal injury. Our objective is to validate the potential role of sEH inhibitors in the treatment of renal injuries. We contend that a comprehensive comprehension of the salient attributes of sEH, coupled with insights from clinical experiments, provides invaluable guidance for clinicians and presents promising therapeutic avenues for patients suffering from renal diseases.
ESTHER : Gao_2024_Front.Endocrinol.(Lausanne)_15_1304547
PubMedSearch : Gao_2024_Front.Endocrinol.(Lausanne)_15_1304547
PubMedID: 38425758

Title : NSUN2 relies on ALYREF to regulate Nrf2-mediated oxidative stress and alleviate Dox-induced liver injury - Huang_2024_Biol.Direct_19_32
Author(s) : Huang Y , Li X , Wei L , Ma S , Ma L , Zan Y , He X , Tang Y , Ding Y
Ref : Biol Direct , 19 :32 , 2024
Abstract : BACKGROUND: Doxorubicin (Dox) is associated with various liver injuries, limiting its clinical utility. This study investigates whether NSUN2 participates in Dox-induced liver injury and the associated molecular mechanism. METHODS: In vivo and in vitro liver cell injury models were constructed based on Dox therapy. The protein levels of NSUN2 and oxidative stress indicators Nrf2, HO-1, and NQO1 were evaluated by Western blot. The RNA binding potential was detected by RNA methylation immunoprecipitation (RIP). Additionally, the effect of NSUN2 on Nrf2 mRNA synthesis and localization was evaluated using an RNA fluorescence probe. RESULTS: NSUN2 was downregulated, and liver tissue suffered significant pathological damage in the Dox group. The levels of ALT and AST significantly increased. NSUN2 interference exacerbated Dox-induced liver cell damage, which was reversed by NSUN2 overexpression. RIP demonstrated that NSUN2 recognized and bound to Nrf2 mRNA. Western blot analysis showed the protein level of Nrf2 in the NSUN2-WT group was significantly higher than that of the control group, whereas there was no significant change in Nrf2 level in the mutant NSUN2 group. Luciferase analysis demonstrated that NSUN2 could recognize and activate the Nrf2 5'UTR region of LO2 cells. In addition, RIP analysis revealed that ALYREF could recognize and bind to Nrf2 mRNA and that ALYREF controls the regulatory effect of NSUN2 on Nrf2. CONCLUSION: NSUN2 regulates Dox-induced liver cell damage by increasing Nrf2 mRNA m5C methylation to inhibit inhibiting antioxidant stress. The regulatory effect of NSUN2 on Nrf2 depends on ALYREF.
ESTHER : Huang_2024_Biol.Direct_19_32
PubMedSearch : Huang_2024_Biol.Direct_19_32
PubMedID: 38685056

Title : Identifying key risk factors for acute compartment syndrome in tibial diaphysis fracture patients - An_2024_Sci.Rep_14_8913
Author(s) : An M , Jia R , Wu L , Ma L , Qi H , Long Y
Ref : Sci Rep , 14 :8913 , 2024
Abstract : Acute compartment syndrome (ACS) is a severe orthopedic issue that, if left untreated, can result in lasting nerve and muscle damage or even necessitate amputation. The association between admission laboratory blood test indicators and the occurrence of ACS in patients with tibial diaphysis fractures is currently a subject of debate. The objective of this research was to identify the contributing factors for ACS in individuals suffering from tibial diaphysis fractures. In this retrospective study, we collected data on a total of 705 individuals from our hospital, comprising 86 ACS patients and 619 non-ACS patients with tibial diaphysis fractures. These participants were categorized into two distinct groups: the ACS group and the non-ACS group. Despite the inherent limitations associated with retrospective analyses, such as potential biases in data collection and interpretation, we conducted a comprehensive analysis of demographics, comorbidities, and admission lab results. Our analytical approach included univariate analysis, logistic regression, and receiver operating characteristic (ROC) curve analysis techniques, aiming to mitigate these limitations and provide robust findings. The statistical analysis revealed several predictors of ACS, including gender (p=0.011, OR=3.200), crush injuries (p=0.004, OR=4.622), lactic dehydrogenase (LDH) levels (p<0.001, OR=1.003), and white blood cell (WBC) count (p<0.001, OR=1.246). Interestingly, the study also found that certain factors, such as falls on the same level (p=0.007, OR=0.334) and cholinesterase (CHE) levels (p<0.001, OR=0.721), seem to provide a degree of protection against ACS. In order to better predict ACS, the ROC curve analysis was employed, which determined threshold values for LDH and WBC. The established cut-off points were set at 266.26 U/L for LDH and 11.7x10(9) cells per liter for WBC, respectively. Our research has successfully pinpointed gender, crush injuries, LDH levels, and white blood cell (WBC) count as crucial risk factors for the development of ACS in patients experiencing tibial diaphysis fractures. Furthermore, by establishing the cut-off values for LDH and WBC, we have facilitated a more personalized assessment of ACS risk, enabling clinical doctors to implement targeted early interventions and optimize patient outcomes.
ESTHER : An_2024_Sci.Rep_14_8913
PubMedSearch : An_2024_Sci.Rep_14_8913
PubMedID: 38632464

Title : A Dual Fluorescence Assay Enables High-Throughput Screening for Poly(ethylene terephthalate) Hydrolases - Liu_2023_ChemSusChem_16_e202202019
Author(s) : Liu K , Xu Z , Zhao Z , Chen Y , Chai Y , Ma L , Li S
Ref : ChemSusChem , 16 :e202202019 , 2023
Abstract : The drastically increasing consumption of petroleum-derived plastics hasserious environmental impacts and raises public concerns. Poly(ethylene terephthalate) (PET) is amongst the most extensively produced synthetic polymers. Enzymatic hydrolysis of PET recently emerged as an enticing path for plastic degradation and recycling. In-lab directed evolution has revealed the great potential of PET hydrolases (PETases). However, the time-consuming and laborious PETase assays hinder the identification of effective variants in large mutant libraries. Herein, we devise and validate a dual fluorescence-based high-throughput screening (HTS) assay for a representative IsPETase. The two-round HTS of a pilot library consisting of 2850 IsPETase variants yields six mutant IsPETases with 1.3-4.9 folds improved activities. Compared to the currently used structure- or computational redesign-based PETase engineering, this HTS approach provides a new strategy for discovery of new beneficial mutation patterns of PETases.
ESTHER : Liu_2023_ChemSusChem_16_e202202019
PubMedSearch : Liu_2023_ChemSusChem_16_e202202019
PubMedID: 36511949

Title : Co-Immobilization of Lipases with Different Specificities for Efficient and Recyclable Biodiesel Production from Waste Oils: Optimization Using Response Surface Methodology - Wang_2023_Int.J.Mol.Sci_24_4726
Author(s) : Wang Q , Zhang R , Liu M , Ma L , Zhang W
Ref : Int J Mol Sci , 24 :4726 , 2023
Abstract : Lipase-catalyzed transesterification is a promising and sustainable approach to producing biodiesel. To achieve highly efficient conversion of heterogeneous oils, combining the specificities and advantages of different lipases is an attractive strategy. To this end, highly active Thermomyces lanuginosus lipase (1,3-specific) and stable Burkholderia cepacia lipase (non-specific) were covalently co-immobilized on 3-glycidyloxypropyltrimethoxysilane (3-GPTMS) modified Fe(3)O(4) magnetic nanoparticles (co-BCL-TLL@Fe(3)O(4)). The co-immobilization process was optimized using response surface methodology (RSM). The obtained co-BCL-TLL@Fe(3)O(4) exhibited a significant improvement in activity and reaction rate compared with mono and combined-use lipases, achieving 92.9% yield after 6 h under optimal conditions, while individually immobilized TLL, immobilized BCL and their combinations exhibited yields of 63.3%, 74.2% and 70.6%, respectively. Notably, co-BCL-TLL@Fe(3)O(4) achieved 90-98% biodiesel yields after 12 h using six different feedstocks, demonstrating the perfect synergistic effect of BCL and TLL remarkably motivated in co-immobilization. Furthermore, co-BCL-TLL@Fe(3)O(4) could maintain 77% of initial activity after nine cycles by removing methanol and glycerol from catalyst surface, accomplished by washing with t-butanol. The high catalytic efficiency, wide substrate adaptability and favorable reusability of co-BCL-TLL@Fe(3)O(4) suggest that it will be an economical and effective biocatalyst for further applications.
ESTHER : Wang_2023_Int.J.Mol.Sci_24_4726
PubMedSearch : Wang_2023_Int.J.Mol.Sci_24_4726
PubMedID: 36902155

Title : Sublethal effects of halofenozide on larval development and detoxification in Phaedon brassicae (Coleoptera: Chrysomelidae) - Ma_2023_J.Econ.Entomol__
Author(s) : Ma L , Xu C , Peng Y , Zhang J , Zhang W
Ref : J Econ Entomol , : , 2023
Abstract : The brassica leaf beetle, Phaedon brassicae, is a serious defoliator of cruciferous crops. Halofenozide (Hal), an ecdysone agonist, is a new class of insect growth-regulating insecticide. Our preliminary experiment revealed the outstanding larval toxicity of Hal against P. brassicae. However, the metabolic degradation of this compound in insects remains unclear. In this study, oral administration of Hal at LC10 and LC25 caused severe separation of the cuticle and epidermis, leading to larval molting failure. Sublethal dose exposure also significantly reduced the larval respiration rate as well as their pupation rates and pupal weights. Conversely, the activities of the multifunctional oxidase, carboxylesterase (CarE), and glutathione S-transferase (GST) were significantly enhanced in Hal-treated larvae. Further analysis using RNA sequencing identified 64 differentially expressed detoxifying enzyme genes, including 31 P450s, 13 GSTs, and 20 CarEs. Among the 25 upregulated P450s, 22 genes were clustered into the CYP3 clan, and the other 3 genes belonged to the CYP4 clan. Meanwhile, 3 sigma class GSTs and 7 epsilon class GSTs were dramatically increased, accounting for the majority of the upregulated GSTs. Moreover, 16 of the 18 overexpressed CarEs were clustered into the coleopteran xenobiotic-metabolizing group. These results showed the augmented expression of detoxification genes in P. brassicae after exposed to sublethal dose of Hal, and helped to better understand the potential metabolic pathways that could contribute to the reduced sensitivity to Hal in this pest. Overall, a deep insight into the detoxification mechanisms would provide practical guidance for the field management of P. brassicae.
ESTHER : Ma_2023_J.Econ.Entomol__
PubMedSearch : Ma_2023_J.Econ.Entomol__
PubMedID: 37338416

Title : The advantages of penehyclidine hydrochloride over atropine in acute organophosphorus pesticide poisoning: A meta-analysis - Zeng_2023_J.Intensive.Med_3_171
Author(s) : Zeng S , Ma L , Yang L , Hu X , Wang C , Guo X , Li Y , Gou Y , Zhang Y , Li S , Zhang S , Wu X , Li M , Lei J , Li B , Bi C , Luo Q
Ref : J Intensive Med , 3 :171 , 2023
Abstract : BACKGROUND: Penehyclidine hydrochloride (PHC) has been used for many years as an anticholinergic drug for the treatment of acute organophosphorus pesticide poisoning (AOPP). The purpose of this meta-analysis was to explore whether PHC has advantages over atropine in the use of anticholinergic drugs in AOPP. METHODS: We searched Scopus, Embase, Cochrane, PubMed, ProQuest, Ovid, Web of Science, China Science and Technology Journal Database (VIP), Duxiu, Chinese Biomedical literature (CBM), WanFang, and Chinese National Knowledge Infrastructure (CNKI), from inception to March 2022. After all qualified randomized controlled trials (RCTs) were included, we conducted quality evaluation, data extraction, and statistical analysis. Statistics using risk ratios (RR), weighted mean difference (WMD), and standard mean difference (SMD). RESULTS: Our meta-analysis included 20,797 subjects from 240 studies across 242 different hospitals in China. Compared with the atropine group, the PHC group showed decreased mortality rate (RR=0.20, 95% confidence intervals [CI]: 0.16-0.25, P <0.001), hospitalization time (WMD=-3.89, 95% CI: -4.37 to -3.41, P <0.001), overall incidence rate of complications (RR=0.35, 95% CI: 0.28-0.43, P <0.001), overall incidence of adverse reactions (RR=0.19, 95% CI: 0.17-0.22, P <0.001), total symptom disappearance time (SMD=-2.13, 95% CI: -2.35 to -1.90, P <0.001), time for cholinesterase activity to return to normal value 50-60% (SMD=-1.87, 95% CI: -2.03 to -1.70, P <0.001), coma time (WMD=-5.57, 95% CI: -7.20 to -3.95, P <0.001), and mechanical ventilation time (WMD=-2.16, 95% CI: -2.79 to -1.53, P <0.001). CONCLUSION: PHC has several advantages over atropine as an anticholinergic drug in AOPP.
ESTHER : Zeng_2023_J.Intensive.Med_3_171
PubMedSearch : Zeng_2023_J.Intensive.Med_3_171
PubMedID: 37188113

Title : Improving the activity and thermostability of PETase from Ideonella sakaiensis through modulating its post-translational glycan modification - Deng_2023_Commun.Biol_6_39
Author(s) : Deng B , Yue Y , Yang J , Yang M , Xing Q , Peng H , Wang F , Li M , Ma L , Zhai C
Ref : Commun Biol , 6 :39 , 2023
Abstract : The large-scale preparation of Polyehylene terephthalate (PET) hydrolysing enzymes in low-cost is critical for the biodegradation of PET in industry. In the present study, we demonstrate that the post-translational glycosylation of Pichia pastoris makes it a remarkable host for the heterologous expression of PETase from Ideonella sakaiensis 201-F6 (IsPETase). Taking advantage of the abundant N- and O-linked glycosylation sites in IsPETase and the efficient post-translational modification in endoplasmic reticulum, IsPETase is heavily glycosylated during secretory expression with P. pastoris, which improves the specific activity and thermostability of the enzyme dramatically. Moreover, the specific activity of IsPETase increased further after the bulky N-linked polysaccharide chains were eliminated by Endo-beta-N-acetylglucosaminidase H (Endo H). Importantly, the partially deglycosylated IsPETase still maintained high thermostability because of the remaining mono- and oligo-saccharide residues on the protein molecules. Consequently, the partially deglycosylated IsPETase was able to be applied at 50 degreesC and depolymerized raw, untreated PET flakes completely in 2 to 3 days. This platform was also applied for the preparation of a famous variant of IsPETase, Fast-PETase, and the same result was achieved. Partially deglycosylated Fast-PETase demonstrates elevated efficiency in degrading postconsumer-PET trays under 55 degreesC than 50 degreesC, the reported optimal temperature of Fast-PETase. The present study provides a strategy to modulate thermostable IsPETase through glycosylation engineering and paves the way for promoting PET biodegradation from laboratories to factories.
ESTHER : Deng_2023_Commun.Biol_6_39
PubMedSearch : Deng_2023_Commun.Biol_6_39
PubMedID: 36639437
Gene_locus related to this paper: idesa-peth

Title : Difference and clinical value of metabolites in plasma and feces of patients with alcohol-related liver cirrhosis - Xu_2023_World.J.Gastroenterol_29_3534
Author(s) : Xu YF , Hao YX , Ma L , Zhang MH , Niu XX , Li Y , Zhang YY , Liu TT , Han M , Yuan XX , Wan G , Xing HC
Ref : World J Gastroenterol , 29 :3534 , 2023
Abstract : BACKGROUND: Alterations in plasma and intestinal metabolites contribute to the pathogenesis and progression of alcohol-related liver cirrhosis (ALC). AIM: To explore the common and different metabolites in the plasma and feces of patients with ALC and evaluate their clinical implications. METHODS: According to the inclusion and exclusion criteria, 27 patients with ALC and 24 healthy controls (HCs) were selected, and plasma and feces samples were collected. Liver function, blood routine, and other indicators were detected with automatic biochemical and blood routine analyzers. Liquid chromatography-mass spectrometry was used to detect the plasma and feces metabolites of the two groups and the metabolomics of plasma and feces. Also, the correlation between metabolites and clinical features was analyzed. RESULTS: More than 300 common metabolites were identified in the plasma and feces of patients with ALC. Pathway analysis showed that these metabolites are enriched in bile acid and amino acid metabolic pathways. Compared to HCs, patients with ALC had a higher level of glycocholic acid (GCA) and taurocholic acid (TCA) in plasma and a lower level of deoxycholic acid (DCA) in the feces, while L-threonine, L-phenylalanine, and L-tyrosine increased simultaneously in plasma and feces. GCA, TCA, L-methionine, L-phenylalanine, and L-tyrosine in plasma were positively correlated with total bilirubin (TBil), prothrombin time (PT), and maddrey discriminant function score (MDF) and negatively correlated with cholinesterase (CHE) and albumin (ALB). The DCA in feces was negatively correlated with TBil, MDF, and PT and positively correlated with CHE and ALB. Moreover, we established a P/S BA ratio of plasma primary bile acid (GCA and TCA) to fecal secondary bile acid (DCA), which was relevant to TBil, PT, and MDF score. CONCLUSION: The enrichment of GCA, TCA, L-phenylalanine, L-tyrosine, and L-methionine in the plasma of patients with ALC and the reduction of DCA in feces were related to the severity of ALC. These metabolites may be used as indicators to evaluate the progression of alcohol-related liver cirrhosis.
ESTHER : Xu_2023_World.J.Gastroenterol_29_3534
PubMedSearch : Xu_2023_World.J.Gastroenterol_29_3534
PubMedID: 37389241

Title : Co-exposure to sodium hypochlorite and cadmium induced locomotor behavior disorder by influencing neurotransmitter secretion and cardiac function in larval zebrafish - Ma_2023_Environ.Pollut_342_123070
Author(s) : Ma L , Yang H , Xiao X , Chen Q , Lv W , Xu T , Jin Y , Wang W , Xiao Y
Ref : Environ Pollut , 342 :123070 , 2023
Abstract : Sodium hypochlorite (NaClO) and cadmium (Cd) are widely co-occurring in natural aquatic environment; however, no study has been conducted on effects of their combined exposure on aquatic organisms. To assess effects of exposure to NaClO and Cd in zebrafish larvae, we designed six treatment groups, as follows: control group, NaClO group (300 microg/L), 1/100 Cd group (48 microg/L), 1/30 Cd group (160 microg/L), NaClO+1/100 Cd group, and NaClO+1/30 Cd group analyzed behavior, neurological function and cardiac function. Results revealed that exposure to 1/30 Cd and NaClO+1/30 Cd caused abnormal embryonic development in larvae by altering body morphology and physiological indicators. Combined exposure to NaClO and 1/30 Cd affected the free-swimming activity and behavior of larvae in response to light-dark transition stimuli. Moreover, exposure to 1/30 Cd or NaClO+1/30 Cd resulted in a significant increase in tyrosine hydroxylase and acetylcholinesterase activities, as well as significant changes of various neurotransmitters. Lastly, exposure to 1/30 Cd or NaClO+1/30 Cd influenced the transcription of cardiac myosin-related genes and disturbed the myocardial contractile function. Altogether, our results suggested that combined exposure to NaClO and Cd induced oxidative damage in larvae, resulting in detrimental effects on nervous system and cardiac function, thus altering their swimming behavior.
ESTHER : Ma_2023_Environ.Pollut_342_123070
PubMedSearch : Ma_2023_Environ.Pollut_342_123070
PubMedID: 38056588

Title : DPP4 Regulates the Th17\/IL-17 Axis and Accelerates Epithelial Mesenchymal Transition to Promote Ovalbumin-Induced Asthma in Female C57BL\/6J Mice - Li_2023_Front.Biosci.(Landmark.Ed)_28_342
Author(s) : Li L , Ling F , Li R , Jiang Y , Long H , Xiao B , Wu J , Long Z , Ma L
Ref : Front Biosci (Landmark Ed) , 28 :342 , 2023
Abstract : BACKGROUND: Dipeptidyl peptidase-4 (DPP4) is a transmembrane glycoprotein, prevalent across a variety of tissues and cells and can be foundin a solubilised in peripheral blood. This paper aims at determining the role of sCD26/sDPP4 in Th17 cell polarization and airway epithelial cell to epithelial mesenchymal transition (EMT) in asthma. METHODS: Female C57BL/6J mice were treated with ovalbumin to constructed asthma mice. The CD4+ T cell, and bronchial epithelial cells (BECs) were purified from the spleens and bronchus of mice. The KRT8 expression in BECs were identified by immunofluorescence (IF). Th17 cells were differentiated from a CD4+ T cell. Flow cytometry was usewd to identify and calculate the Th17 and Treg cells. Mice woth asthma were treated by DPP4 overexpressing lentivirus or DPP4 inhibitor. Histopathological modifications were assessed by hematoxylin-eosin (HE), periodic acid Schiff (PAS), and Masson staining. The total number of leucocytes was detected using a hemocytometer. For detection, quantitative Real-time PCR (qRT-PCR), western blotting (WB), and IF were used to evaluate the expression of E-cadherin and alpha-smooth muscle actin (alpha-SMA). Enzyme-linked immunosorbent assay (ELISA) was performed to analyze the DPP4, IL-4, IL-5, IL-13 and IL-17 levels. RESULTS: The findings suggest that sCD26/sDPP4 promote CD4+ T cells differentiation into Th17 cells in a depending on the applied dose. sCD26/sDPP4 up-regulated the expression of alpha-SMA and down-regulated the expression of E-cadherin in TGF-beta1-induced mouse BECs, which was reversed by DPP4 inhibitor. Co-culture induced a synergic effect between Th17 cells and sCD26/sDPP4 on the formation of airway EMT in BECs. Furthermore, DPP4 inhibitor prevented lung-bronchial inflammatory infiltration, mucus secretion, goblet cell hyperplasia and collagen deposition in asthma mice. Meanwhile, DPP4 inhibitor decreased the levels of DPP4, IL-4, IL-5, IL-13, IL-17 and increased the total number of leukocytes in bronchoalveolar lavage fluid of asthma mice. In addition, DPP4 inhibitor also inhibited airway EMT and Th17 cell polarization in asthma mice. CONCLUSIONS: The results in this paper show that up-regulation of DPP4 enabled airway inflammation and airway remodeling in asthmatic mice by modulating the Th17/IL-17 axis and accelerating the airway EMT, which isa therapeutic target in asthma.
ESTHER : Li_2023_Front.Biosci.(Landmark.Ed)_28_342
PubMedSearch : Li_2023_Front.Biosci.(Landmark.Ed)_28_342
PubMedID: 38179747

Title : Isolation and Identification of Efficient Malathion-Degrading Bacteria from Deep-Sea Hydrothermal Sediment - Ma_2022_Microorganisms_10_
Author(s) : Ma L , Dai X , Ai G , Zheng X , Zhang Y , Pan C , Hu M , Jiang C , Wang L , Dong Z
Ref : Microorganisms , 10 : , 2022
Abstract : The genetic and metabolic diversity of deep-sea microorganisms play important roles in phosphorus and sulfur cycles in the ocean, distinguishing them from terrestrial counterparts. Malathion is a representative organophosphorus component in herbicides, pesticides, and insecticides and is analogues of neurotoxic agent. Malathion has been one of the best-selling generic organophosphate insecticides from 1980 to 2012. Most of the sprayed malathion has migrated by surface runoff to ocean sinks, and it is highly toxic to aquatic organisms. Hitherto, there is no report on bacterial cultures capable of degrading malathion isolated from deep-sea sediment. In this study, eight bacterial strains, isolated from sediments from deep-sea hydrothermal regions, were identified as malathion degradators. Two of the tested strains, Pseudidiomarina homiensis strain FG2 and Pseudidiomarina sp. strain CB1, can completely degrade an initial concentration of 500 mg/L malathion within 36 h. Since the two strains have abundant carboxylesterases (CEs) genes, malathion monocarboxylic acid (MMC alpha and MMC beta) and dibasic carboxylic acid were detected as key intermediate metabolites of malathion degradation, and the pathway of malathion degradation between the two strains was identified as a passage from malathion monocarboxylic acid to malathion dicarboxylic acid.
ESTHER : Ma_2022_Microorganisms_10_
PubMedSearch : Ma_2022_Microorganisms_10_
PubMedID: 36144399

Title : Biodegradation Pathway and Detoxification of beta-cyfluthrin by the Bacterial Consortium and Its Bacterial Community Structure - Li_2022_J.Agric.Food.Chem_70_7626
Author(s) : Li H , Ma Y , Yao T , Ma L , Zhang J , Li C
Ref : Journal of Agricultural and Food Chemistry , 70 :7626 , 2022
Abstract : In the process of microbial degradation of pyrethroid pesticides, the synergistic effect of the microbial community is more conducive to the complete degradation of toxic compounds than a single strain. At present, the degradation pathway of pyrethroids in a single strain has been well revealed, but the synergistic metabolism at the community level has not been well explained. This study elucidated the bacterial community succession, metabolic pathway, and phytotoxicity assessment during beta-cyfluthrin biodegradation by a novel bacterial consortium enriched from contaminated soil. The results showed that the half-life of beta-cyfluthrin at different initial concentrations of 0.25, 0.5, 0.75, and 1.0 mg mL(-1) were 4.16, 7.34, 12.81, and 22.73 days, respectively. Enterobacter was involved in beta-cyfluthrin degradation metabolism in the initial stage, and other bacterial genera (Microbacterium, Ochrobactrum, Pseudomonas, Hyphomicrobiaceae, Achromobacter, etc.) significantly contribute to the degradation of intermediate metabolites in the later stages. Functional gene prediction and metabolite analysis showed that xenobiotic biodegradation and metabolism, especially benzoate degradation and metabolism by cytochrome P450 were the major means of beta-cyfluthrin degradation. Further, two degradation pathways of beta-cyfluthrin were proposed, which were mainly ester hydrolysis and oxidation to degrade beta-cyfluthrin through the production of carboxylesterase and oxidoreductase. In addition, the inoculated bacterial consortium could degrade beta-cyfluthrin residues in water and soil and reduce its phytotoxicity in Medicago sativa. Hence, this novel bacterial consortium has important application in the remediation environments polluted by beta-cyfluthrin.
ESTHER : Li_2022_J.Agric.Food.Chem_70_7626
PubMedSearch : Li_2022_J.Agric.Food.Chem_70_7626
PubMedID: 35698868

Title : Similarities and differences among the responses to three chlorinated organophosphate esters in earthworm: Evidences from biomarkers, transcriptomics and metabolomics - Gao_2022_Sci.Total.Environ_815_152853
Author(s) : Gao Y , Wang L , Zhang X , Shi C , Ma L , Wang G
Ref : Sci Total Environ , 815 :152853 , 2022
Abstract : The wide use of chlorinated organophosphate esters (Cl-OPEs) as additive flame retardants has aroused concern about their potential risks on ecosystem and human health. However, knowledge about the toxicity of Cl-OPEs on soil organisms remains limited. In this study, earthworms, Eisenia fetida, were exposed to three representative Cl-OPEs, i.e., tris(2-chloroethyl) phosphate (TCEP), tris(2-chloro-1-methylethyl) phosphate (TCPP), and tris(1,3-dichloro-2-propyl) phosphate (TDCPP) in artificial soil. Using a combination of biochemical indicators (biomarkers), transcriptomics, and metabolomics, we compared the Cl-OPE-induced toxicity to E. fetida and provide new insight into the related molecular mechanism. All three Cl-OPEs elicited immune defense by the earthworms, as evidenced by increased acid phosphatase and alkaline phosphatase activities, and the genes involved in immune-related pathways (e.g., lysosomal and interleukin-17 signaling pathways). Furthermore, no effects on acetylcholinesterase activity were observed among the three Cl-OPEs. However, the TCPP and TDCPP treatments significantly decreased the neurotransmitter serotonin, suggesting the potential neurotoxicity of Cl-OPEs. Although TCEP affected the genes involved in carbohydrate and amino acid metabolism, the changes in the corresponding metabolites were not statistically significant. In contrast, exposure to TCPP and TDCPP induced oxidative stress, and affected xenobiotic metabolism and energy metabolism, leading to the decreased body weight in E. fetida. Based on these toxic effects, TCPP and TDCPP were more severely toxic than TCEP, despite their structural similarity. Given that the use of TCEP has been tightly regulated, our results suggest the potentially toxic effects of TCPP and TDCPP should not be ignored in future risk assessments of flame retardants.
ESTHER : Gao_2022_Sci.Total.Environ_815_152853
PubMedSearch : Gao_2022_Sci.Total.Environ_815_152853
PubMedID: 34998776

Title : Lignin biosynthesis regulated by CsCSE1 is required for Cucumis sativus defence to Podosphaera xanthi - Yu_2022_Plant.Physiol.Biochem_186_88
Author(s) : Yu Y , Cui N , Ma L , Tao R , Ma Z , Meng X , Fan H
Ref : Plant Physiol Biochem , 186 :88 , 2022
Abstract : Lignin is a complex phenolic compound that can enhance the stiffness, hydrophobicity, and antioxidant capacity of the cell wall; it thus provides a critical barrier against pathogen and insect invaders. Caffeoyl shikimate esterase (CSE) is a key novel enzyme involved in lignin biosynthesis that is associated with genetic improvements in lignocellulosic biomass; however, no research thus far have revealed the role of CSE in resistance to pathogenic stress. CsCSE1 (Cucsa.134370) has previously been shown to highly associated with the response of cucumber to attack by Podosphaera xanthii through RNA sequencing. Here, we detected the exactly role of CsCSE1 in the defence of cucumber to P. xanthii infection. Homologous sequence alignment revealed that CsCSE1 contains two highly conserved lyase domains (GXSXG), suggesting that CsCSE1 possesses CSE activity. Subcellular localization analysis manifested that CsCSE1 was localized to the plasma membrane and endoplasmic reticulum (ER). Functional analysis demonstrated that the transient silencing of CsCSE1 in cucumber dramatically attenuated resistance to P. xanthii, whereas overexpression of CsCSE1 in cucumber markedly increased resistance to P. xanthii. Further investigation of the abundance of lignin in transient transgenic plants revealed that CsCSE1 might actively mediate the disease resistance of cucumber by promoting lignin biosynthesis. CsCSE1 also affects the expression of its downstream lignin biosynthesis-related genes, like CsLAC, CsCOMT, CsCCR, and CsCAD. The results of this study provide targets for the genetic breeding of tolerant cucumber cultivars as well as new insights that could aid the control of plant diseases.
ESTHER : Yu_2022_Plant.Physiol.Biochem_186_88
PubMedSearch : Yu_2022_Plant.Physiol.Biochem_186_88
PubMedID: 35830761
Gene_locus related to this paper: cucsa-CsCSE1

Title : Identification and characterization of two types of triacylglycerol lipase genes from Neocaridina denticulata sinensis - Liang_2022_Fish.Shellfish.Immunol__
Author(s) : Liang M , Ma L , Li X , Feng D , Zhang J , Sun Y
Ref : Fish Shellfish Immunol , : , 2022
Abstract : Triacylglycerol lipases (TGLs) can catalyze the hydrolysis reaction of triacylglycerol serving multiple functions in most organisms. Based on the genomic and transcriptomic databases of Neocaridina denticulata sinensis, two TGL genes from N. denticulata sinensis designated NdTGL1 and NdTGL2 were identified and characterized. NdTGL1 showed the highest expression in the stomach, followed by the testis and hepatopancreas, and NdTGL2 exhibited the maximum expression in the hepatopancreas, followed by the stomach and heart. Under the stimulation of copper ion, the expression of NdTGL1 peaked at 12 h and the expression of NdTGL2 elevated significantly at 24 h after stimulation (P < 0.05). It is speculated that NdTGLs may play an important role in the stress response of N. denticulata sinensis. Challenged with Vibrio parahaemolyticus, the expression profiles of NdTGL1 and NdTGL2 in the hepatopancreas was different, which indicates that the immune response of the V. parahaemolyticus challenge might lead to changes in triglyceride metabolism. The recombinant NdTGL (recNdTGL1 and recNdTGL2) were obtained and the enzymatic characterization of recNdTGL1 and recNdTGL2 were determined. The common maximum activity and stability of the recNdTGL1 and recNdTGL2 were observed at 45 C and 10 C, respectively. Both recNdTGL1 and recNdTGL2 exhibited the highest activity at pH 10.0. Furthermore, the recNdTGL1 and recNdTGL2 displayed the maximum stability at pH 5.0 and pH 8.0, respectively. In presence of different metal ions, the enzyme activity of recNdTGL1 and recNdTGL2 were inhibited by Cu(2+) and Zn(2+), and decreased by about 25%. Studies on the triacylglycerol lipases of N. denticulata sinensis provide theoretical support for studies related to fat metabolism in crustaceans and studies on response mechanism of digestive enzymes to microbial pathogens.
ESTHER : Liang_2022_Fish.Shellfish.Immunol__
PubMedSearch : Liang_2022_Fish.Shellfish.Immunol__
PubMedID: 36379446

Title : The Effect of Guilingji Capsules on Vascular Mild Cognitive Impairment: A Randomized, Double-Blind, Controlled Trial - Zhang_2022_Evid.Based.Complement.Alternat.Med_2022_4778163
Author(s) : Zhang H , Chen H , Pei H , Wang H , Ma L , Li H
Ref : Evid Based Complement Alternat Med , 2022 :4778163 , 2022
Abstract : Guilingji capsules (GLJC) have been shown to have antiaging effects and improve cognitive function. The aim of this study was to evaluate the clinical efficacy and safety of GLJC for the treatment of vascular mild cognitive impairment (VaMCI). A total of 96 patients with VaMCI (aged 60-85 years) were enrolled in this 24-week, randomized, double-blind, controlled clinical trial. The patients were randomly assigned to a GLJC group (n = 48) or a Ginkgo group (n = 48). Patients in the GLJC group were treated using GLJC, whereas those in the Ginkgo group received Ginkgo extract tablets. We evaluated the participants at baseline and after a 12- and 24-week treatment period using the Montreal Cognitive Assessment (MoCA), Mini-Mental State Examination (MMSE), Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog), and Chinese Medicine Symptom Scale (CM-SS). The serum acetylcholine (Ach), acetylcholinesterase (AchE), homocysteine (Hcy), and high-sensitivity C-reactive protein (hs-CRP) serum levels of the patients were measured before and after 24-week treatment. Analysis of the results of both groups showed that both interventions significantly increased the MoCA and MMSE scores of the patients and decreased their ADAS-Cog and CM-SS scores (P < 0.05). The GLJC group showed greater improvement in MoCA, MMSE, and CM-SS scores than the Ginkgo group (P < 0.05). However, both groups showed a significant increase in serum Ach and a decrease in serum AchE, Hcy, and hs-CRP levels (P < 0.05). Furthermore, serum Ach increased and Hcy decreased more significantly in the GLJC group than in the Ginkgo group (P < 0.05). These findings indicate that GLJC can improve the cognitive function, cholinergic system, and inflammatory cytokine levels of patients with VaMCI. Furthermore, this treatment can improve symptoms of syndromes diagnosed according to traditional Chinese medicine practice in patients with VaMCI.
ESTHER : Zhang_2022_Evid.Based.Complement.Alternat.Med_2022_4778163
PubMedSearch : Zhang_2022_Evid.Based.Complement.Alternat.Med_2022_4778163
PubMedID: 35116067

Title : Silencing of MsD14 Resulted in Enhanced Forage Biomass through Increasing Shoot Branching in Alfalfa (Medicago sativa L.) - Ma_2022_Plants.(Basel)_11_
Author(s) : Ma L , Zhang Y , Wen H , Liu W , Zhou Y , Wang X
Ref : Plants (Basel) , 11 : , 2022
Abstract : Branching is one of the key determinants of plant architecture that dramatically affects crop yield. As alfalfa is the most important forage crop, understanding the genetic basis of branching in this plant can facilitate breeding for a high biomass yield. In this study, we characterized the strigolactone receptor gene MsD14 in alfalfa and demonstrated that MsD14 was predominantly expressed in flowers, roots, and seedpods. Furthermore, we found that MsD14 expression could significantly respond to strigolactone in alfalfa seedlings, and its protein was located in the nucleus, cytoplasm, and cytomembrane. Most importantly, transformation assays demonstrated that silencing of MsD14 in alfalfa resulted in increased shoot branching and forage biomass. Significantly, MsD14 could physically interact with AtMAX2 and MsMAX2 in the presence of strigolactone, suggesting a similarity between MsD14 and AtD14. Together, our results revealed the conserved D14-MAX2 module in alfalfa branching regulation and provided candidate genes for alfalfa high-yield molecular breeding.
ESTHER : Ma_2022_Plants.(Basel)_11_
PubMedSearch : Ma_2022_Plants.(Basel)_11_
PubMedID: 35406919

Title : Point-of-care testing of butyrylcholinesterase activity through modulating the photothermal effect of cuprous oxide nanoparticles - Ma_2021_Mikrochim.Acta_188_392
Author(s) : Ma J , Ma L , Cao L , Miao Y , Dong J , Shi YE , Wang Z
Ref : Mikrochim Acta , 188 :392 , 2021
Abstract : Butyrylcholinesterase (BChE) is an important indicator for clinical diagnosis of liver dysfunction, organophosphate toxicity, and poststroke dementia. Point-of-care testing (POCT) of BChE activity is still a challenge, which is a critical requirement for the modern clinical diagnose. A portable photothermal BChE assay is proposed through modulating the photothermal effects of Cu(2)O nanoparticles. BChE can catalyze the decomposition of butyrylcholine, producing thiocholine, which further reduce and coordinate with CuO on surface of Cu(2)O nanoparticle. This leads to higher efficiency of formation of Cu(9)S(8) nanoparticles, through the reaction between Cu(2)O nanoparticle and NaHS, together with the promotion of photothermal conversion efficiency from 3.1 to 59.0%, under the excitation of 1064 nm laser radiation. An excellent linear relationship between the temperature change and the logarithm of BChE concentration is obtained in the range 1.0 to 7.5 U/mL, with a limit of detection of 0.076 U/mL. In addition, the portable photothermal assay shows strong detection robustness, which endows the accurate detection of BChE in human serum, together with the screening and quantification of organophosphorus pesticides. Such a simple, sensitive, and robust assay shows great potential for the applications to clinical BChE detection and brings a new horizon for the development of temperature based POCT.
ESTHER : Ma_2021_Mikrochim.Acta_188_392
PubMedSearch : Ma_2021_Mikrochim.Acta_188_392
PubMedID: 34697648

Title : Ingestion of Faecalibaculum rodentium causes depression-like phenotypes in resilient Ephx2 knock-out mice: A role of brain-gut-microbiota axis via the subdiaphragmatic vagus nerve - Wang_2021_J.Affect.Disord_292_565
Author(s) : Wang S , Ishima T , Qu Y , Shan J , Chang L , Wei Y , Zhang J , Pu Y , Fujita Y , Tan Y , Wang X , Ma L , Wan X , Hammock BD , Hashimoto K
Ref : J Affect Disord , 292 :565 , 2021
Abstract : BACKGROUND: The brain-gut-microbiota axis plays a crucial role in the bidirectional interactions between the brain and the gut. Soluble epoxide hydrolase (coded by the Ephx2 gene) plays an important role in inflammation, which has been implicated in stress-related depression. Ephx2 knock-out (KO) mice exposed to chronic social defeat stress (CSDS) did not show depression-like behaviors, indicating stress resilience. Here we examined whether the brain-gut-microbiota axis influences the resilience in Ephx2 KO mice. METHODS: Effects of fecal microbiota transplantation (FMT) from CSDS-susceptible (or control) mice in wild-type (WT) mice and Ephx2 KO mice treated with an antibiotic cocktail (ABX) were investigated. Behavioral, biochemical tests and 16S ribosome RNA analysis were performed. RESULTS: FMT from CSDS-susceptible mice produced anhedonia-like behavior in ABX-treated WT and Ephx2 KO mice. The 16S ribosome RNA analysis showed that Faecalibaculum rodentium (F. rodentium) may be responsible for the observed anhedonia-like behavior following FMT from CSDS-susceptible mice. Ingestion of F. rodentium for 14 days produced depression- and anhedonia-like behaviors, higher blood levels of interleukin-6, and reduced expression of synaptic proteins in the prefrontal cortex of ABX-treated Ephx2 KO mice. Furthermore, subdiaphragmatic vagotomy blocked the development of these behavioral abnormalities after ingestion of F. rodentium. LIMITATIONS: Detailed mechanisms are unclear. CONCLUSIONS: These findings suggest that F. rodentium might contribute to the conversion of resilient Ephx2 KO mice into KO mice with depression-like phenotypes. The brain-gut-microbiota axis via the subdiaphragmatic vagus nerve plays a crucial role in susceptibility and resilience to stress.
ESTHER : Wang_2021_J.Affect.Disord_292_565
PubMedSearch : Wang_2021_J.Affect.Disord_292_565
PubMedID: 34147969

Title : Structural basis for substrate specificity of the peroxisomal acyl-CoA hydrolase MpaH' involved in mycophenolic acid biosynthesis - You_2021_FEBS.J_288_5768
Author(s) : You C , Li F , Zhang X , Ma L , Zhang YZ , Zhang W , Li S
Ref : Febs J , 288 :5768 , 2021
Abstract : Mycophenolic acid (MPA) is a fungal natural product and first-line immunosuppressive drug for organ transplantations and autoimmune diseases. In the compartmentalized biosynthesis of MPA, the acyl-coenzyme A (CoA) hydrolase MpaH' located in peroxisomes catalyzes the highly specific hydrolysis of MPA-CoA to produce the final product MPA. The strict substrate specificity of MpaH' not only averts undesired hydrolysis of various cellular acyl-CoAs, but also prevents MPA-CoA from further peroxisomal beta-oxidation catabolism. To elucidate the structural basis for this important property, in this study, we solve the crystal structures of the substrate-free form of MpaH' and the MpaH'(S139A) mutant in complex with the product MPA. The MpaH' structure reveals a canonical alpha/beta-hydrolase fold with an unusually large cap domain and a rare location of the acidic residue D163 of catalytic triad after strand beta6. MpaH' also forms an atypical dimer with the unique C-terminal helices alpha13 and alpha14 arming the cap domain of the other protomer and indirectly participating in the substrate binding. With these characteristics, we propose that MpaH' and its homologues form a new subfamily of alpha/beta hydrolase fold protein. The crystal structure of MpaH'(S139A) /MPA complex and the modelled structure of MpaH'/MPA-CoA, together with the structure-guided mutagenesis analysis and isothermal titration calorimetry (ITC) measurements provide important mechanistic insights into the high substrate specificity of MpaH'.
ESTHER : You_2021_FEBS.J_288_5768
PubMedSearch : You_2021_FEBS.J_288_5768
PubMedID: 33843134
Gene_locus related to this paper: penbr-mpaH

Title : General features to enhance enzymatic activity of poly(ethylene terephthalate) hydrolysis - Chen_2021_Nat.Catal_4_425
Author(s) : Chen CC , Han X , Li X , Jiang P , Niu D , Ma L , Liu W , Li S , Qu Y , Hu H , Min J , Yang Y , Zhang L , Zeng W , Huang JW , Dai L , Guo RT , Chen, CC
Ref : Nature Catalysis , 4 :425 , 2021
Abstract : Poly(ethylene terephthalate) (PET) is the most abundant polyester plastic and a major contributor to plastic pollution. IsPETase, from the PET-assimilating bacterium Ideonella sakaiensis, is a unique PET-hydrolytic enzyme that shares high sequence identity to canonical cutinases, but shows substrate preference towards PET and exhibits higher PET-hydrolytic activity at ambient temperature. Structural analyses suggest that IsPETase harbours a substrate-binding residue, W185, with a wobbling conformation and a highly flexible W185-locating beta6-beta7 loop. Here, we show that these features result from the presence of S214 and I218 in IsPETase, whose equivalents are strictly His and Phe, respectively, in all other homologous enzymes. We found that mutating His/Phe residues to Ser/Ile could enhance the PET-hydrolytic activity of several IsPETase-like enzymes. In conclusion, the Ser/Ile mutations should provide an important strategy to improve the activity of potential PET-hydrolytic enzymes with properties that may be useful for various applications.
ESTHER : Chen_2021_Nat.Catal_4_425
PubMedSearch : Chen_2021_Nat.Catal_4_425
PubMedID:
Gene_locus related to this paper: 9burk-a0a1f4jxw8 , idesa-peth

Title : In vitro and in vivo efficacy of thiacloprid against Echinococcus multilocularis - Liu_2021_Parasit.Vectors_14_450
Author(s) : Liu C , Fan H , Ma J , Ma L , Ge RL
Ref : Parasit Vectors , 14 :450 , 2021
Abstract : BACKGROUND: Alveolar echinococcosis (AE) is a chronic zoonosis caused by the larval form of Echinococcus multilocularis (E. multilocularis). Current chemotherapy against AE has relied on albendazole and mebendazole, which only exhibit parasitostatic and not parasiticidal efficacy. Therefore, novel compounds for the treatment of this disease are needed. METHODS: Phosphoglucose isomerase (PGI) assays were used for compound screening of seven neonicotinoids. The anti-parasitic effects of thiacloprid were then evaluated on E. multilocularis metacestode vesicles, germinal cells and protoscoleces in vitro. Human foreskin fibroblasts (HFF) and Reuber rat hepatoma (RH) cells were used to assess cytotoxicity. Glucose consumption in E. multilocularis protoscoleces and germinal cells was assessed by measuring uptake of 2-deoxyglucose (2-DG). Molecular docking was used to evaluate the potential binding sites of thiacloprid to acetylcholine receptors. In vivo efficacy of thiacloprid was evaluated in mice by secondary infection with E. multilocularis. In addition, ELISA and flow cytometry were used to evaluate the effects of cytokines and T lymphocyte subsets after thiacloprid treatment. Furthermore, collagen deposition and degradation in the host lesion microenvironment were evaluated. RESULTS: We found that thiacloprid is the most promising compound, with an IC(50) of 4.54 +/- 1.10 microM and 2.89 +/- 0.34 microM, respectively, against in vitro-cultured E. multilocularis metacestodes and germinal cells. Thiacloprid was less toxic for HFF and RH mammalian cell lines than for metacestodes. In addition, thiacloprid inhibited the acetylcholinesterase activity in protoscoleces, metacestodes and germinal cells. Thiacloprid inhibited glucose consumption by protoscoleces and germinal cells. Subsequently, transmission electron microscopy revealed that treatment with thiacloprid damaged the germinal layer. In vivo, metacestode weight was significantly reduced following oral administration of thiacloprid at 15 and 30 mg/kg. The level of CD4(+) T lymphocytes in metacestodes and spleen increased after thiacloprid treatment. Anti-echinococcosis-related cytokines (IL-2, IL-4, IL-10) were significantly increased. Furthermore, thiacloprid inhibited the expression of matrix metalloproteinases (MMPs 1, 3, 9, 13) and promoted collagen deposition in the host lesion microenvironment. CONCLUSIONS: The results demonstrated that thiacloprid had parasiticidal activity against E. multilocularis in vitro and in vivo, and could be used as a novel lead compound for the treatment of AE.
ESTHER : Liu_2021_Parasit.Vectors_14_450
PubMedSearch : Liu_2021_Parasit.Vectors_14_450
PubMedID: 34488852

Title : Twin drug design, synthesis and evaluation of diosgenin derivatives as multitargeted agents for the treatment of vascular dementia - Yang_2021_Bioorg.Med.Chem_37_116109
Author(s) : Yang GX , Sun JM , Zheng LL , Zhang L , Li J , Gan HX , Huang Y , Huang J , Diao XX , Tang Y , Wang R , Ma L
Ref : Bioorganic & Medicinal Chemistry , 37 :116109 , 2021
Abstract : A novel series of multitargeted molecules were designed and synthesized by combining the pharmacological role of cholinesterase inhibitor and antioxidant of steroid as potential ligands for the treatment of Vascular Dementia (VD). The oxygen-glucose deprivation (OGD) model was used to evaluate these molecules, among which the most potent compound ML5 showed the highest activity. Firstly, ML5 showed appropriate inhibition of cholinesterases (ChEs) at orally 15 mg/kg in vivo. The further test revealed that ML5 promoted the nuclear translocation of Nrf2. Furthermore, ML5 has significant neuroprotective effect in vivo model of bilateral common carotid artery occlusion (BCCAO), significantly increasing the expression of Nrf2 protein in the cerebral cortex. In the molecular docking research, we predicted the ML5 combined with hAChE and Keap1. Finally, compound ML5 displayed normal oral absorption and it was nontoxic at 500 mg/kg, po, dose. We can draw the conclusion that ML5 could be considered as a new potential compound for VD treatment.
ESTHER : Yang_2021_Bioorg.Med.Chem_37_116109
PubMedSearch : Yang_2021_Bioorg.Med.Chem_37_116109
PubMedID: 33780813

Title : The protective effects of Omarigliptin against Lipopolysaccharide (LPS)- induced inflammatory response and expression of mucin 5AC (MUC5AC) in human bronchial epithelial cells - Ma_2021_Mol.Immunol_141_108
Author(s) : Ma L , Chang E , Ruan X , Zhang B , Tang F , Zhang J
Ref : Mol Immunol , 141 :108 , 2021
Abstract : The epidemic of chronic inflammatory lung diseases such as asthma, bronchitis, and chronic obstructive pulmonary disease (COPD) has become a global public health problem. Oxidative stress, inflammation, and overproduction of airway mucus play critical roles in the progression of these diseases. Omarigliptin, an oral dipeptidyl peptidase 4 (DPP-4) inhibitor, has been demonstrated to have anti-inflammatory effects in patients with type II diabetes. However, its role in chronic inflammatory lung diseases remains enigmatic. This study is to investigate whether Omarigliptin possesses a beneficial effect against Lipopolysaccharide (LPS)-induced injuries in human BEAS-2B bronchial epithelial cells. Our results show that Omarigliptin suppressed LPS-induced oxidative stress by attenuating the generation of mitochondrial reactive oxygen species (ROS) and decrease in reduced glutathione (GSH) in BEAS-2B cells. Additionally, Omarigliptin mitigated inflammatory response by inhibiting the expression of pro-inflammatory mediators, including interleukin-1beta (IL-1beta), interleukin-12 (IL-12), and macrophage chemoattractant protein-1 (MCP-1) in LPS-challenged BEAS-2B cells. Moreover, Omarigliptin mitigated the LPS-induced overproduction of MUC5AC by rescuing the expression of the suppressor of cytokine signaling 1(SOCS1). Importantly, we found that this process is mediated by the Adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway. Based on these findings, we conclude that Omarigliptin might be a promising agent for the treatment of chronic inflammatory lung diseases.
ESTHER : Ma_2021_Mol.Immunol_141_108
PubMedSearch : Ma_2021_Mol.Immunol_141_108
PubMedID: 34871838

Title : Toxicity Assessment of 4 Azo Dyes in Zebrafish Embryos - Jiang_2020_Int.J.Toxicol__1091581819898396
Author(s) : Jiang LL , Li K , Yan DL , Yang MF , Ma L , Xie LZ
Ref : Int J Toxicol , :1091581819898396 , 2020
Abstract : Azo dyes are used widely as color additives in food, drugs, and cosmetics; hence, there is an increasing concern about their safety and possible health hazards. In the present study, we chose 4 azo dyes tartrazine, Sunset Yellow, amaranth, and Allura red and evaluated their developmental toxicity on zebrafish embryos. At concentration levels of 5 to 50 mM, we found that azo dyes can induce hatching difficulty and developmental abnormalities such as cardiac edema, decreased heart rate, yolk sac edema, and spinal defects including spinal curvature and tail distortion. Exposure to 100 mM of each azo dye was completely embryolethal. The median lethal concentration (LC50), median effective concentration (EC50), and teratogenic index (TI) were calculated for each azo dye at 72 hours postfertilization. For tartrazine, the LC50 was 47.10 mM and EC50 value was at 42.66 mM with TI ratio of 1.10. For Sunset Yellow, the LC50 was 38.93 mM and EC50 value was at 29.81 mM with TI ratio of 1.31. For amaranth, the LC50 was 39.86 mM and EC50 value was at 31.94 mM with TI ratio of 1.25. For Allura red, the LC50 was 47.42 mM and EC50 value was 40.05 mM with TI ratio of 1.18. This study reports the developmental toxicity of azo dyes in zebrafish embryos at concentrations higher than the expected human exposures from consuming food and drugs containing azo dyes.
ESTHER : Jiang_2020_Int.J.Toxicol__1091581819898396
PubMedSearch : Jiang_2020_Int.J.Toxicol__1091581819898396
PubMedID: 31933405

Title : Lack of rewarding effects of a soluble epoxide hydrolase inhibitor TPPU in mice: Comparison with morphine - Wan_2020_Neuropsychopharmacol.Rep_40_412
Author(s) : Wan X , Fujita Y , Chang L , Wei Y , Ma L , Wuyun G , Pu Y , Hammock BD , Hashimoto K
Ref : Neuropsychopharmacol Rep , 40 :412 , 2020
Abstract : AIM: Although opioids have been used as treatment of neuropathic pain, opioids have abuse potential in humans. Since soluble epoxide hydrolase (sEH) in the metabolism of polyunsaturated fatty acids plays a key role in the pain, sEH inhibitors would be promising new therapeutic drugs for neuropathic pain. In this study, we examined the effect of the sEH inhibitor TPPU on rewarding effects in mice using the conditioned place preference (CPP) paradigm. METHODS: The rewarding effects of morphine (10 mg/kg) and TPPU (3, 10, or 30 mg/kg) in mice were examined using CPP paradigm. Furthermore, the effect of TPPU (30 mg/kg) on morphine-induced rewarding effects was examined. RESULTS: TPPU (3, 10, or 30 mg/kg) did not increase CPP scores in the mice whereas morphine significantly increased CPP scores in the mice. Furthermore, pretreatment with TPPU did not block the rewarding effects of morphine in the mice, suggesting that sEH does not play a role in the rewarding effect of morphine. CONCLUSION: This study suggests that TPPU did not have rewarding effects in rodents. This would make sEH inhibitors potential therapeutic drugs without abuse potential for neuropathic pain.
ESTHER : Wan_2020_Neuropsychopharmacol.Rep_40_412
PubMedSearch : Wan_2020_Neuropsychopharmacol.Rep_40_412
PubMedID: 32896112

Title : Design, synthesis and evaluation of diosgenin carbamate derivatives as multitarget anti-Alzheimer's disease agents - Yang_2020_Eur.J.Med.Chem_187_111913
Author(s) : Yang GX , Huang Y , Zheng LL , Zhang L , Su L , Wu YH , Li J , Zhou LC , Huang J , Tang Y , Wang R , Ma L
Ref : Eur Journal of Medicinal Chemistry , 187 :111913 , 2020
Abstract : In order to produce an effective and multi-targeted clinical drug that could prevent progressive neurodegeneration, a series of diosgenin carbamate derivatives were designed, synthesized and tested for their anti-inflammatory, antioxidant and anti-Abeta activities. The results demonstrated that compound M15 was the most promising derivative against inflammatory (NO inhibition 22.7 +/- 2.2%,10 muM) and cellular damage induced by H2O2 (SH-SY5Y cell protection = 75.3 +/- 3.4%, 10 muM) or Abeta (astrocytes protection = 70.2 +/- 6.5%, 10 muM). Molecular docking studies revealed the strong binding affinity of M15 to the active site of nNOS, Abeta42 and pro-inflammatory proteins. Western blot demonstrated that M15 decreased IL-1beta, IL-6 and TNF-alpha level, which may contribute to its anti-inflammatory effects. In addition, M15 maintained mitochondrial function as well as cell viability through reducing H2O2-induced ROS production. The results indicated that oral administration of M15 attenuated memory deficits and played a neuroprotective effect on subcutaneous (s.c.) D-gal aging mice. In summary, M15 could be considered as a potential multifunctional neuroprotective agent due to the effects of anti-inflammatory, antioxidant and anti-Abeta activities.
ESTHER : Yang_2020_Eur.J.Med.Chem_187_111913
PubMedSearch : Yang_2020_Eur.J.Med.Chem_187_111913
PubMedID: 31837501

Title : Significant association between the endothelial lipase gene 584C\/T polymorphism and coronary artery disease risk - Wu_2020_Biosci.Rep_40_
Author(s) : Wu YE , Ma L , Zhang H , Chen XR , Xu XY , Hu ZP
Ref : Bioscience Reports , 40 : , 2020
Abstract : Several studies have investigated a potential association between the endothelial lipase gene (LIPG) 584C/T polymorphism and susceptibility to coronary artery disease (CAD), but a uniform conclusion is yet to be reached. To better evaluate the true relationship between the LIPG 584C/T polymorphism and the risk of CAD, a meta-analysis of 14 case-control studies with 9731 subjects was performed. Relevant articles published through August 2020 were searched in the CNKI, PubMed, Embase and Web of Science databases. Thirteen articles, including 14 eligible case-control studies with 4025 cases and 5706 controls, were enrolled in the present meta-analysis. The Newcastle-Ottawa Scale (NOS) scores of the case-control studies ranged from 6 to 8. The pooled results indicated that there is a significant association between the LIPG 584C/T polymorphism and CAD in the homozygote comparison model and the allelic comparison model. Subgroup analyses revealed that the LIPG 584C/T mutation significantly decreased the risk of CAD in the subgroups of African, CAD, hospital-based (HB), and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) populations in some genetic models. No publication bias was found in our meta-analysis, which certifies the robustness of the current meta-analysis. Trial sequential analysis (TSA) also confirmed the stability of our results. The results of our meta-analysis indicate that the LIPG 584C/T polymorphism plays a protective role in the incidence of CAD. More high-quality case-control studies on various ethnicities are needed to confirm our results.
ESTHER : Wu_2020_Biosci.Rep_40_
PubMedSearch : Wu_2020_Biosci.Rep_40_
PubMedID: 32893849
Gene_locus related to this paper: human-LIPG

Title : Short-term exposure to norfloxacin induces oxidative stress, neurotoxicity and microbiota alteration in juvenile large yellow croaker Pseudosciaena crocea - Wang_2020_Environ.Pollut_267_115397
Author(s) : Wang X , Hu M , Gu H , Zhang L , Shang Y , Wang T , Zeng J , Ma L , Huang W , Wang Y
Ref : Environ Pollut , 267 :115397 , 2020
Abstract : In recent years, antibiotics have been widely detected in coastal waters of China, which raising concerns for coastal biodiversity and aquaculture. This study evaluated the effects of short-term exposure of norfloxacin (NOR) on oxidative stress and intestinal health of the large yellow croaker Pseudosciaena crocea. Juvenile fish were exposed to four concentrations of NOR (0.1, 10, 100 and 1000 g/L) for 14 days. The results showed that NOR inhibited growth and threatened the survival of juveniles. According to the changes of intestinal microbiota, we found that NOR led to a significant decrease in intestinal microbiota diversity, with the decreased relative abundance of Proteobacteria, but the increased Tenericutes. From the perspective of microbial function, NOR inhibited metabolism, cellular defence mechanism and information transduction process. In terms of biochemical indicators, NOR caused an increase in malondialdehyde (MDA) level and inhibited superoxide dismutase (SOD) and acetyl cholinesterase (AChE) activities. Catalase (CAT) activity was activated at low concentration but significantly inhibited at high concentration of NOR. Moreover, there was a high correlation between change in biochemical indicators and change in the microbial community. Overall, environmentally relevant concentrations (0.1 g/L) and high concentrations (10, 100 and 1000 g/L) of NOR have negative effects on the defence function and intestinal health of large yellow croaker juveniles.
ESTHER : Wang_2020_Environ.Pollut_267_115397
PubMedSearch : Wang_2020_Environ.Pollut_267_115397
PubMedID: 33254654

Title : Traditional Chinese Medicine Shenmayizhi Decoction Ameliorates Memory And Cognitive Impairment Induced By Scopolamine Via Preventing Hippocampal Cholinergic Dysfunction In Rats - Wu_2019_Neuropsychiatr.Dis.Treat_15_3167
Author(s) : Wu Q , Cao Y , Liu M , Liu F , Brantner AH , Yang Y , Wei Y , Zhou Y , Wang Z , Ma L , Wang F , Pei H , Li H
Ref : Neuropsychiatr Dis Treat , 15 :3167 , 2019
Abstract : Purpose: Clinical trials have illustrated that Shenmayizhi decoction (SMYZ) could improve the cognitive functions in patients with dementia. However, the mechanism needs to be explored. Methods: Fifty adult male rats (Wistar strain) were divided into five groups equally and randomly, including control, model, and SMYZ of low dose, medium dose and high dose. Rats in each group received a daily gavage of respective treatment. Rats in control and model group were administrated by the same volume of distilled water. Memory impairment was induced by intraperitoneal administration of scopolamine (0.7 mg/kg) for 5 continuous days. Four weeks later, Morris water maze (MWM) was performed to evaluate the spatial memory in all rats. Then, rats were sacrificed and the hippocampus was removed for further tests. Furthermore, Western blot analysis was employed to assess the levels of acetylcholine M1 receptor (M1), acetylcholine M2 receptor (M2), acetylcholinesterase (AChE) and cholineacetyltransferase (ChAT). AChE and ChAT activities were determined. Results: The SMYZ decoction significantly improved behavioral performance of rats in high dose. The SMYZ decoction in three doses exhibited anti-acetylcholinesterase activity. In addition, a high dose of SMYZ promoted ChAT activity. Moreover, a high dose of SMYZ increased the level of ChAT and declined the level of AChE assessed by Western blotting. Besides, an increased level of M1 receptor was found after treatment. Conclusion: Shenmayizhi decoction could mitigate scopolamine-induced cognitive deficits through the preventative effect on cholinergic system dysfunction.
ESTHER : Wu_2019_Neuropsychiatr.Dis.Treat_15_3167
PubMedSearch : Wu_2019_Neuropsychiatr.Dis.Treat_15_3167
PubMedID: 31814724

Title : Hierarchical nanocomposites with an N-doped carbon shell and bimetal core: Novel enzyme nanocarriers for electrochemical pesticide detection - Ma_2018_Biosens.Bioelectron_121_166
Author(s) : Ma L , Zhou L , He Y , Wang L , Huang Z , Jiang Y , Gao J
Ref : Biosensors & Bioelectronics , 121 :166 , 2018
Abstract : Core-shell structured nanocomposites (named PtPd@NCS) with N-doped carbon shell and bimetal core (Pt and Pd) were fabricated through a facile strategy for the first time. The PtPd@NCS nanocomposites were obtained through reduction of K2PtCl4, H2PtCl6 and Na2PdCl4 species, self-polymerization of dopamine (DA) and co-assembly of Pluronic F127 using a one-pot approach. DA serves as a reductant, as well as a carbon and nitrogen source. The core-shell structure of the PtPd@NCS nanocomposites was characterized and the result indicated that Pt-Pd nanoparticle core with a diameter of approximately 15nm was encased in the N-doped carbon shells with a thickness of approximately 35nm. The PtPd@NCS nanocomposites were used as an electrode material to prepare acetylcholinesterase (AChE) biosensors for detecting organophosphate pesticides. The obtained AChE biosensor exhibited a linear range of 1x10(-14) to 1x10(-10) M and 1x10(-9) to 1x10(-5) M within the detection limit of 7.9x10(-15) M for malathion, 1x10(-13) to 1x10(-6) within the detection limit of 7.1x10(-14) M for chlopyrifos, and 1x10(-14) to 1x10(-11) M and 1x10(-10) to 1x10(-5) M within the detection limit of 8.6x10(-15) M for parathion methyl. The proposed biosensor also exhibited high selectivity, reproducibility and stability. The AChE biosensor was also applied in real samples for detecting organophosphate pesticides and exhibited acceptable recovery. This work demonstrated that the PtPd@NCS had great potential in constructing biosensors to detect organophosphate pesticides and other analytes.
ESTHER : Ma_2018_Biosens.Bioelectron_121_166
PubMedSearch : Ma_2018_Biosens.Bioelectron_121_166
PubMedID: 30218924

Title : Possible mechanism of Vitis vinifera L. flavones on neurotransmitters, synaptic transmission and related learning and memory in Alzheimer model rats - Ma_2018_Lipids.Health.Dis_17_152
Author(s) : Ma L , Xiao H , Wen J , Liu Z , He Y , Yuan F
Ref : Lipids Health Dis , 17 :152 , 2018
Abstract : BACKGROUND: This study explored the possible mechanism of flavones from Vitis vinifera L. (VTF) on neurotransmitters, synaptic transmission and related learning and memory in rats with Alzheimer disease (AD). METHODS: The researchers injected amyloid-beta(25-35) into the hippocampus to establish AD model rats. The Sprague-Dawley (SD) rats were divided into a control group, a donepezil group, an AD model group, a VTF low-dose group, a VTF medium-dose group and a VTF high-dose group. The researchers detected the activity of choline acetyltransferase (ChAT) and acetylcholinesterase (AChE) according to kit instructions. The protein expression of brain-derived neurotrophic factor (BDNF), synaptotagmin-1 (SYT1) and cyclic adenosine monophosphate response element binding protein (CREB) in the rats' hippocampi was detected by immunohistochemistry and Western blot, and the gene expression of cAMP-regulated enhancer (CRE) was detected by real-time quantitative polymerase chain reaction (PCR). RESULTS: VTF may enhance the protein expression of p-CREB, BDNF and SYT1 in rat hippocampi, depending on dose. The messenger RNA (mRNA) level of CREB was significantly higher in the VTF high-dose group than in the model group, which was consistent with the results of Western blotting. VTF may reduce the activity of AChE and increase that of ChAT in rat hippocampi. Finally, VTF effectively improved the learning and memory abilities of AD rats. CONCLUSIONS: VTF can promote synaptic plasticity and indirectly affect the expression of cholinergic neurotransmitters, which may be one mechanism of VTF protection in AD rats.
ESTHER : Ma_2018_Lipids.Health.Dis_17_152
PubMedSearch : Ma_2018_Lipids.Health.Dis_17_152
PubMedID: 29973282

Title : Physcomitrella patens MAX2 characterization suggests an ancient role for this F-box protein in photomorphogenesis rather than strigolactone signalling - Lopez-Obando_2018_New.Phytol_219_743
Author(s) : Lopez-Obando M , de Villiers R , Hoffmann B , Ma L , de Saint Germain A , Kossmann J , Coudert Y , Harrison CJ , Rameau C , Hills P , Bonhomme S
Ref : New Phytol , 219 :743 , 2018
Abstract : Strigolactones (SLs) are key hormonal regulators of flowering plant development and are widely distributed amongst streptophytes. In Arabidopsis, SLs signal via the F-box protein MORE AXILLARY GROWTH2 (MAX2), affecting multiple aspects of development including shoot branching, root architecture and drought tolerance. Previous characterization of a Physcomitrella patens moss mutant with defective SL synthesis supports an ancient role for SLs in land plants, but the origin and evolution of signalling pathway components are unknown. Here we investigate the function of a moss homologue of MAX2, PpMAX2, and characterize its role in SL signalling pathway evolution by genetic analysis. We report that the moss Ppmax2 mutant shows very distinct phenotypes from the moss SL-deficient mutant. In addition, the Ppmax2 mutant remains sensitive to SLs, showing a clear transcriptional SL response in dark conditions, and the response to red light is also altered. These data suggest divergent evolutionary trajectories for SL signalling pathway evolution in mosses and vascular plants. In P. patens, the primary roles for MAX2 are in photomorphogenesis and moss early development rather than in SL response, which may require other, as yet unidentified, factors.
ESTHER : Lopez-Obando_2018_New.Phytol_219_743
PubMedSearch : Lopez-Obando_2018_New.Phytol_219_743
PubMedID: 29781136

Title : In Vitro and in Vivo Evaluation of (11)C-Labeled Azetidinecarboxylates for Imaging Monoacylglycerol Lipase by PET Imaging Studies - Cheng_2018_J.Med.Chem_61_2278
Author(s) : Cheng R , Mori W , Ma L , Alhouayek M , Hatori A , Zhang Y , Ogasawara D , Yuan G , Chen Z , Zhang X , Shi H , Yamasaki T , Xie L , Kumata K , Fujinaga M , Nagai Y , Minamimoto T , Svensson M , Wang L , Du Y , Ondrechen MJ , Vasdev N , Cravatt BF , Fowler C , Zhang MR , Liang SH
Ref : Journal of Medicinal Chemistry , 61 :2278 , 2018
Abstract : Monoacylglycerol lipase (MAGL) is the principle enzyme for metabolizing endogenous cannabinoid ligand 2-arachidonoyglycerol (2-AG). Blockade of MAGL increases 2-AG levels, resulting in subsequent activation of the endocannabinoid system, and has emerged as a novel therapeutic strategy to treat drug addiction, inflammation, and neurodegenerative diseases. Herein we report a new series of MAGL inhibitors, which were radiolabeled by site-specific labeling technologies, including (11)C-carbonylation and spirocyclic iodonium ylide (SCIDY) radiofluorination. The lead compound [(11)C]10 (MAGL-0519) demonstrated high specific binding and selectivity in vitro and in vivo. We also observed unexpected washout kinetics with these irreversible radiotracers, in which in vivo evidence for turnover of the covalent residue was unveiled between MAGL and azetidine carboxylates. This work may lead to new directions for drug discovery and PET tracer development based on azetidine carboxylate inhibitor scaffold.
ESTHER : Cheng_2018_J.Med.Chem_61_2278
PubMedSearch : Cheng_2018_J.Med.Chem_61_2278
PubMedID: 29481079

Title : Protein Surface Structural Recognition in Inactive Areas: A New Immobilization Strategy for Acetylcholinesterase - Diao_2018_Bioconjug.Chem_29_1703
Author(s) : Diao J , Yu X , Ma L , Li Y , Sun Y
Ref : Bioconjug Chem , 29 :1703 , 2018
Abstract : This work reported a new method of design for the immobilization of acetylcholinesterase (AChE) based on its molecular structure to improve its sensitivity and stability. The immobilization binding site on the surface of AChE was determined using MOLCAD's multi-channel functionality. Then, 11 molecules ((+)-catechin, (-)-epicatechin, (-)-gallocatechin, hesperetin, naringenin, quercetin, taxifolin, (-)-epicatechin gallate, flupirtine, atropine, and hyoscyamine) were selected from the ZINC database (about 50000 molecules) as candidate affinity ligands for AChE. The fluorescence results showed that the binding constant Kb between AChE and the ligands ranged from 0.01344 x 10(4) to 4.689 x 10(4) M(-1) and there was one independent class of binding site for the ligands on AChE. The AChE-ligand binding free energy ranged from -12.14 to -26.65 kJ mol(-1). Naringenin, hesperetin, and quercetin were the three most potent immobilized affinity ligands. In addition, it was confirmed that the binding between the immobilized ligands only occurred at a single site, located in an inactive area on the surface of AChE, and did not affect the enzymatic activity as shown through a competition experiment and enzyme assay. This method based on protein surface structural recognition with high sensitivity and stability can be used as a generic approach for design of the enzyme immobilization and biosensor development.
ESTHER : Diao_2018_Bioconjug.Chem_29_1703
PubMedSearch : Diao_2018_Bioconjug.Chem_29_1703
PubMedID: 29617563

Title : Chronic brain toxicity response of juvenile Chinese rare minnows (Gobiocypris rarus) to the neonicotinoid insecticides imidacloprid and nitenpyram - Tian_2018_Chemosphere_210_1006
Author(s) : Tian X , Yang W , Wang D , Zhao Y , Yao R , Ma L , Ge C , Li X , Huang Z , He L , Jiao W , Lin A
Ref : Chemosphere , 210 :1006 , 2018
Abstract : Imidacloprid and nitenpyram are widely used neonicotinoid pesticides worldwide and were observed to adversely affect non-target aquatic organisms. In this study, the toxic effect of imidacloprid and nitenpyram on the brain of juvenile Chinese rare minnows (Gobiocypris rarus) was investigated by determining the oxidative stress, 8-hydroxy-2-deoxyguanosine (8-OHdG) content and acetylcholinesterase (AChE) activity. The superoxide dismutase (SOD) activities did not significantly change after long-term exposure to imidacloprid and nitenpyram. A noticeable increase of catalase (CAT) activities was observed on the brain tissues under 0.1mg/L imidacloprid and under all nitenpyram treatments (p<0.05). The malondialdehyde (MDA) content increased markedly under 2.0mg/L imidacloprid and 0.1mg/L nitenpyram treatments (p<0.05). The glutathione (GSH) content in the brain significantly increased under 0.5 and 2.0mg/L imidacloprid (p<0.05). A significant decrease was observed in the mRNA levels of Cu/Zn-sod under 2.0mg/L imidacloprid and those of cat under 0.1 and 0.5mg/L nitenpyram (p<0.05). The mRNA levels of gpx1 clearly decreased under 2.0mg/L imidacloprid and under 0.1mg/L nitenpyram (p<0.05). The treatments of 0.1 and 0.5mg/L nitenpyram decreased cat expression levels markedly (p<0.05). 2.0mg/L imidacloprid raised the 8-OHdG content. The AChE activities increased markedly under 0.5 and 2.0mg/L imidacloprid while clearly decreasing under 2.0mg/L nitenpyram (p<0.05). Therefore, our results indicate that imidacloprid and nitenpyram might cause adverse effects on juvenile Chinese rare minnows brain. Notably, imidacloprid had greater impacts on juvenile rare minnows compared to nitenpyram.
ESTHER : Tian_2018_Chemosphere_210_1006
PubMedSearch : Tian_2018_Chemosphere_210_1006
PubMedID: 30208524

Title : Comammox in drinking water systems - Wang_2017_Water.Res_116_332
Author(s) : Wang Y , Ma L , Mao Y , Jiang X , Xia Y , Yu K , Li B , Zhang T
Ref : Water Res , 116 :332 , 2017
Abstract : The discovery of complete ammonia oxidizer (comammox) has fundamentally upended our perception of the global nitrogen cycle. Here, we reported four metagenome assembled genomes (MAGs) of comammox Nitrospira that were retrieved from metagenome datasets of tap water in Singapore (SG-bin1 and SG-bin2), Hainan province, China (HN-bin3) and Stanford, CA, USA (ST-bin4). Genes of phylogenetically distinct ammonia monooxygenase subunit A (amoA) and hydroxylamine dehydrogenase (hao) were identified in these four MAGs. Phylogenetic analysis based on ribosomal proteins, AmoA, hao and nitrite oxidoreductase (subunits nxrA and nxrB) sequences indicated their close relationships with published comammox Nitrospira. Canonical ammonia-oxidizing microbes (AOM) were also identified in the three tap water samples, ammonia-oxidizing bacteria (AOB) in Singapore's and Stanford's samples and ammonia-oxidizing archaea (AOA) in Hainan's sample. The comammox amoA-like sequences were also detected from some other drinking water systems, and even outnumbered the AOA and AOB amoA-like sequences. The findings of MAGs and the occurrences of AOM in different drinking water systems provided a significant clue that comammox are widely distributed in drinking water systems.
ESTHER : Wang_2017_Water.Res_116_332
PubMedSearch : Wang_2017_Water.Res_116_332
PubMedID: 28390307
Gene_locus related to this paper: 9bact-a0a1w9j1f6 , 9prot-a0a1w9iez0 , 9prot-a0a1w9i2z8 , 9prot-a0a1w9hbq4 , 9prot-a0a1w9jph2

Title : Cholinergic modulation of auditory steady-state response in the auditory cortex of the freely moving rat - Zhang_2016_Neurosci_324_29
Author(s) : Zhang J , Ma L , Li W , Yang P , Qin L
Ref : Neuroscience , 324 :29 , 2016
Abstract : As disturbance in auditory steady-state response (ASSR) has been consistently found in many neuropsychiatric disorders, such as autism spectrum disorder and schizophrenia, there is considerable interest in the development of translational rat models to elucidate the underlying neural and neurochemical mechanisms involved in ASSR. This is the first study to investigate the effects of the non-selective muscarinic antagonist scopolamine and the cholinesterase inhibitor donepezil (also in combination with scopolamine) on ASSR. We recorded the local field potentials through the chronic microelectrodes implanted in the auditory cortex of freely moving rat. ASSRs were recorded in response to auditory stimuli delivered over a range of frequencies (10-80Hz) and averaged over 60 trials. We found that a single dose of scopolamine produced a temporal attenuation in response to auditory stimuli; the most attenuation occurred at 40Hz. Time-frequency analysis revealed deficits in both power and phase-locking to 40Hz. Donepezil augmented 40-Hz steady-state power and phase-locking. Scopolamine combined with donepezil had an enhanced effect on the phase-locking, but not power of ASSR. These changes induced by cholinergic drugs suggest an involvement of muscarinic neurotransmission in auditory processing and provide a rodent model investigating the neurochemical mechanism of neurophysiological deficits seen in patients.
ESTHER : Zhang_2016_Neurosci_324_29
PubMedSearch : Zhang_2016_Neurosci_324_29
PubMedID: 26964684

Title : Comparative transcriptome analyses of deltamethrin-susceptible and -resistant Culex pipiens pallens by RNA-seq - Lv_2016_Mol.Genet.Genomics_291_309
Author(s) : Lv Y , Wang W , Hong S , Lei Z , Fang F , Guo Q , Hu S , Tian M , Liu B , Zhang D , Sun Y , Ma L , Shen B , Zhou D , Zhu C
Ref : Mol Genet Genomics , 291 :309 , 2016
Abstract : The widespread and improper use of pyrethroid insecticides, such as deltamethrin, has resulted in the evolution of resistance in many mosquito species, including Culex pipiens pallens. With the development of high-throughput sequencing, it is possible to massively screen pyrethroid resistance-associated gene. In this study, we used Illumina-Solexa transcriptome sequencing to identify genes that are expressed differently in deltamethrin-susceptible and -resistant strains of Culex pipiens pallens as a critical knowledge base for further studies. A total of 4,961,197,620 base pairs and 55,124,418 reads were sequenced, mapped to the Culex quinquefasciatus genome and assembled into 17,679 known genes. We recorded 1826 significantly differentially expressed genes (DEGs). Among them, 1078 genes were up-regulated and 748 genes were down-regulated in the deltamethrin-resistant strain compared to -susceptible strain. These DEGs contained cytochrome P450 s, cuticle proteins, UDP-glucuronosyltransferases, lipases, serine proteases, heat shock proteins, esterases and others. Among the 1826 DEGs, we found that the transcriptional levels of CYP6AA9 in the laboratory populations was elevated as the levels of deltamethrin resistance increased. Moreover, the expression levels of the CYP6AA9 were significantly higher in the resistant strains than the susceptible strains in three different field populations. We further confirmed the association between the CYP6AA9 gene and deltamethrin resistance in mosquitoes by RNA interfering (RNAi). Altogether, we explored massive potential pyrethroid resistance-associated genes and demonstrated that CYP6AA9 participated in the pyrethroid resistance in mosquitoes.
ESTHER : Lv_2016_Mol.Genet.Genomics_291_309
PubMedSearch : Lv_2016_Mol.Genet.Genomics_291_309
PubMedID: 26377942

Title : Genome analysis of three Pneumocystis species reveals adaptation mechanisms to life exclusively in mammalian hosts - Ma_2016_Nat.Commun_7_10740
Author(s) : Ma L , Chen Z , Huang da W , Kutty G , Ishihara M , Wang H , Abouelleil A , Bishop L , Davey E , Deng R , Deng X , Fan L , Fantoni G , FitzGerald M , Gogineni E , Goldberg JM , Handley G , Hu X , Huber C , Jiao X , Jones K , Levin JZ , Liu Y , Macdonald P , Melnikov A , Raley C , Sassi M , Sherman BT , Song X , Sykes S , Tran B , Walsh L , Xia Y , Yang J , Young S , Zeng Q , Zheng X , Stephens R , Nusbaum C , Birren BW , Azadi P , Lempicki RA , Cuomo CA , Kovacs JA
Ref : Nat Commun , 7 :10740 , 2016
Abstract : Pneumocystis jirovecii is a major cause of life-threatening pneumonia in immunosuppressed patients including transplant recipients and those with HIV/AIDS, yet surprisingly little is known about the biology of this fungal pathogen. Here we report near complete genome assemblies for three Pneumocystis species that infect humans, rats and mice. Pneumocystis genomes are highly compact relative to other fungi, with substantial reductions of ribosomal RNA genes, transporters, transcription factors and many metabolic pathways, but contain expansions of surface proteins, especially a unique and complex surface glycoprotein superfamily, as well as proteases and RNA processing proteins. Unexpectedly, the key fungal cell wall components chitin and outer chain N-mannans are absent, based on genome content and experimental validation. Our findings suggest that Pneumocystis has developed unique mechanisms of adaptation to life exclusively in mammalian hosts, including dependence on the lungs for gas and nutrients and highly efficient strategies to escape both host innate and acquired immune defenses.
ESTHER : Ma_2016_Nat.Commun_7_10740
PubMedSearch : Ma_2016_Nat.Commun_7_10740
PubMedID: 26899007
Gene_locus related to this paper: pnec8-a0a0w4zi95 , pnemu-m7nra0 , pnej8-l0pgn2 , pnemu-m7nsb0

Title : Construction of an immobilised acetylcholinesterase column and its application in screening insecticidal constituents from Magnolia officinalis - Ye_2015_Pest.Manag.Sci_71_607
Author(s) : Ye YH , Li C , Yang J , Ma L , Xiao Y , Hu J , Rajput NA , Gao CF , Zhang YY , Wang MH
Ref : Pest Manag Sci , 71 :607 , 2015
Abstract : BACKGROUND: Application of a matrix-immobilised target enzyme for screening inhibitors is widely used in drug development, but there are few studies in insecticide discovery. In this paper, an economical and effective immobilised acetylcholinesterase (AChE) column was prepared using the sol-gel embedment method, which was further combined with high-performance liquid chromatography for screening the AChE inhibitors and insecticidal compounds from complex natural products.
RESULTS: AChE inhibitory constituents magnolol and honokiol were isolated from the ethanol extract of Magnolia officinalis, with IC50 values of 0.069 and 0.057 mM respectively. In an in vivo bioassay, magnolol and honokiol showed insecticidal activity against Nilaparvata lugens, with LC50 values of 0.324 and 0.137 mM, which are comparable with that of commonly used insecticide chlorpyrifos (0.233 mM). Moreover, molecular docking was carried out against a homology model of N. lugens AChE. The complexes showed that magnolol and honokiol placed themselves nicely into the active site of the enzyme and exhibited an interaction energy that was in accordance with our activity profile data. CONCLUSION: These results demonstrate that magnolol and honokiol have great applied potential to be developed as natural insecticides, and an immobilised AChE column is very useful as a rapid screening tool for target enzymes towards potent inhibitors. (c) 2014 Society of Chemical Industry.
ESTHER : Ye_2015_Pest.Manag.Sci_71_607
PubMedSearch : Ye_2015_Pest.Manag.Sci_71_607
PubMedID: 25228142

Title : Complete Genome Sequence of Elizabethkingia meningoseptica, Isolated from a T-Cell Non-Hodgkin's Lymphoma Patient - Sun_2015_Genome.Announc_3_e00673
Author(s) : Sun G , Wang L , Bao C , Li T , Ma L , Chen L
Ref : Genome Announc , 3 : , 2015
Abstract : An Elizabethkingia meningoseptica infection was detected at the end stage of a patient with T-cell non-Hodgkin's lymphoma. The complete genome of this isolated strain, FMS-007, was generated in one contig with a total size of 3,938,967 bp. A preliminary screening indicated that the genome contains drug resistance genes to aminoglycosides and beta-lactams. A clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins (CRISPR/Cas) system with 16 direct repeats and 15 spacers was identified.
ESTHER : Sun_2015_Genome.Announc_3_e00673
PubMedSearch : Sun_2015_Genome.Announc_3_e00673
PubMedID: 26112786
Gene_locus related to this paper: elimr-a0a0a2h0j3

Title : Try113His and His139Arg polymorphisms in the microsomal epoxide hydrolase gene are not associated with risk of breast cancer - Gong_2014_Tumour.Biol_35_8087
Author(s) : Gong WF , He W , Zhang QM , Xiang BD , Ma L , Huang S , Bai T , Zhong JH , Li LQ
Ref : Tumour Biol , 35 :8087 , 2014
Abstract : Breast cancer may be caused by several factors, including polymorphisms in the microsomal epoxide hydrolase (mEH) gene. Previous work suggested an association between mEH polymorphism and risk of breast cancer, but the results have been inconsistent. PubMed, EMBASE, Google Scholar, and the Chinese National Knowledge Infrastructure database were systematically searched to identify relevant studies. A meta-analysis was performed to examine the association between Tyr113His and His139Arg mEH polymorphisms and susceptibility to breast cancer. Odds ratios (ORs) with 95 % confidence intervals (CIs) were calculated to assess the strength of the association. Seven studies involving 6,357 cases and 8,089 controls were included in this study. The Tyr113His mEH polymorphism did not affect breast cancer risk in the allelic contrast model (OR = 0.99, 95 % CI = 0.94-1.04, P = 0.58), the dominant genetic model (OR = 1.14, 95 % CI = 0.88-1.48, P = 0.33), or the recessive genetic model (OR = 1.03, 95 % CI = 0.96-1.10, P = 0.43). Similarly, the His139Arg mEH polymorphism was not associated with breast cancer risk in the allelic contrast model (OR = 0.97, 95 % CI = 0.91-1.04, P = 0.44), the dominant genetic model (OR = 1.01, 95 % CI = 0.84-1.21, P = 0.94), or the recessive genetic model (OR = 1.04, 95 % CI = 0.96-1.12, P = 0.35). The mEH polymorphisms Tyr113His and His139Arg are not risk factors for breast cancer. Further, large and well-designed studies are required to confirm this conclusion.
ESTHER : Gong_2014_Tumour.Biol_35_8087
PubMedSearch : Gong_2014_Tumour.Biol_35_8087
PubMedID: 24840637

Title : The adverse effects of phoxim exposure in the midgut of silkworm, Bombyx mori - Gu_2014_Chemosphere_96_33
Author(s) : Gu Z , Zhou Y , Xie Y , Li F , Ma L , Sun S , Wu Y , Wang B , Wang J , Hong F , Shen W , Li B
Ref : Chemosphere , 96 :33 , 2014
Abstract : The silkworm is an important economic insect. Poisoning of silkworms by organophosphate pesticides causes tremendous loss to the sericulture. In this study, Solexa sequencing technology was performed to profile the gene expression changes in the midgut of silkworms in response to 24h of phoxim exposure and the impact on detoxification, apoptosis and immune defense were addressed. The results showed that 254 genes displayed at least 2.0-fold changes in expression levels, with 148 genes up-regulated and 106 genes down-regulated. Cytochrome P450 played an important role in detoxification. Histopathology examination and transmission electron microscope revealed swollen mitochondria and disappearance of the cristae of mitochondria, which are the important features in insect apoptotic cells. Cytochrome C release from mitochondria into the cytoplasm was confirmed. In addition, the Toll and immune deficiency (IMD) signal pathways were all inhibited using qRT-PCR. Our results could help better understand the impact of phoxim exposure on silkworm.
ESTHER : Gu_2014_Chemosphere_96_33
PubMedSearch : Gu_2014_Chemosphere_96_33
PubMedID: 23899924

Title : Functional study on the mutations in the silkworm (Bombyx mori) acetylcholinesterase type 1 gene (ace1) and its recombinant proteins - Wang_2014_Mol.Biol.Rep_41_429
Author(s) : Wang JM , Wang BB , Xie Y , Sun SS , Gu ZY , Ma L , Li FC , Zhao YF , Yang B , Shen WD , Li B
Ref : Mol Biol Rep , 41 :429 , 2014
Abstract : The acetylcholinesterase of Lepidoptera insects is encoded by two genes, ace1 and ace2. The expression of the ace1 gene is significantly higher than that of the ace2 gene, and mutations in ace1 are one of the major reasons for pesticide resistance in insects. In order to investigate the effects of the mutations in ace1's characteristic sites on pesticide resistance, we generated mutations for three amino acids using site-directed mutagenesis, which were Ala(GCG)303Ser(TCG), Gly(GGA)329Ala(GCA) and Leu (TCT)554Ser(TTC). The Baculovirus expression system was used for the eukaryotic expression of the wild type ace1 (wace1) and the mutant ace1 (mace1). SDS-PAGE and Western blotting were used to detect the targeting proteins with expected sizeof about 76 kDa. The expression products were purified for the determination of AChE activity and the inhibitory effects of physostigmine and phoxim. We observed no significant differences in the overall activity of the wild type and mutant AChEs. However, with 10 min of physostigmine (10 muM) inhibition, the remaining activity of the wild type AChE was significantly lower than that of the mutant AChE. Ten min inhibition with 33.4 muM phoxim also resulted in significantly lower remaining activity of the wild type AChE than that of the mutant AChE. These results indicated that mutations for the three amino acids reduced the sensitivity of AChE to physostigmine and phoxim, which laid the foundation for future in vivo studies on AChE's roles in pesticide resistance.
ESTHER : Wang_2014_Mol.Biol.Rep_41_429
PubMedSearch : Wang_2014_Mol.Biol.Rep_41_429
PubMedID: 24323194
Gene_locus related to this paper: bommo-ACHE1

Title : The cavefish genome reveals candidate genes for eye loss - McGaugh_2014_Nat.Commun_5_5307
Author(s) : McGaugh SE , Gross JB , Aken B , Blin M , Borowsky R , Chalopin D , Hinaux H , Jeffery WR , Keene A , Ma L , Minx P , Murphy D , O'Quin KE , Retaux S , Rohner N , Searle SM , Stahl BA , Tabin C , Volff JN , Yoshizawa M , Warren WC
Ref : Nat Commun , 5 :5307 , 2014
Abstract : Natural populations subjected to strong environmental selection pressures offer a window into the genetic underpinnings of evolutionary change. Cavefish populations, Astyanax mexicanus (Teleostei: Characiphysi), exhibit repeated, independent evolution for a variety of traits including eye degeneration, pigment loss, increased size and number of taste buds and mechanosensory organs, and shifts in many behavioural traits. Surface and cave forms are interfertile making this system amenable to genetic interrogation; however, lack of a reference genome has hampered efforts to identify genes responsible for changes in cave forms of A. mexicanus. Here we present the first de novo genome assembly for Astyanax mexicanus cavefish, contrast repeat elements to other teleost genomes, identify candidate genes underlying quantitative trait loci (QTL), and assay these candidate genes for potential functional and expression differences. We expect the cavefish genome to advance understanding of the evolutionary process, as well as, analogous human disease including retinal dysfunction.
ESTHER : McGaugh_2014_Nat.Commun_5_5307
PubMedSearch : McGaugh_2014_Nat.Commun_5_5307
PubMedID: 25329095
Gene_locus related to this paper: astmx-w5kyj0 , astmx-w5l5v5 , astmx-w5k377 , astmx-w5kdz8 , astmx-w5k5k8 , astmx-w5kf08 , astmx-w5lfx9 , astmx-a0a3b1il55 , astmx-w5k188 , astmx-w5lig8 , astmx-a0a3b1it79 , astmx-a0a3b1kh87 , astmx-w5kk92 , astmx-w5kf44 , astmx-a0a3b1ihb9 , astmx-a0a3b1jet6 , astmx-w5lug4 , astmx-w5ln33 , astmx-a0a3b1k1i9 , astmx-w5l3f7

Title : Genome sequence of Anopheles sinensis provides insight into genetics basis of mosquito competence for malaria parasites - Zhou_2014_BMC.Genomics_15_42
Author(s) : Zhou D , Zhang D , Ding G , Shi L , Hou Q , Ye Y , Xu Y , Zhou H , Xiong C , Li S , Yu J , Hong S , Yu X , Zou P , Chen C , Chang X , Wang W , Lv Y , Sun Y , Ma L , Shen B , Zhu C
Ref : BMC Genomics , 15 :42 , 2014
Abstract : BACKGROUND: Anopheles sinensis is an important mosquito vector of Plasmodium vivax, which is the most frequent and widely distributed cause of recurring malaria throughout Asia, and particularly in China, Korea, and Japan.
RESULTS: We performed 454 next-generation sequencing and obtained a draft sequence of A. sinensis assembled into scaffolds spanning 220.8 million base pairs. Analysis of this genome sequence, we observed expansion and contraction of several immune-related gene families in anopheline relative to culicine mosquito species. These differences suggest that species-specific immune responses to Plasmodium invasion underpin the biological differences in susceptibility to Plasmodium infection that characterize these two mosquito subfamilies.
CONCLUSIONS: The A. sinensis genome produced in this study, provides an important resource for analyzing the genetic basis of susceptibility and resistance of mosquitoes to Plasmodium parasites research which will ultimately facilitate the design of urgently needed interventions against this debilitating mosquito-borne disease.
ESTHER : Zhou_2014_BMC.Genomics_15_42
PubMedSearch : Zhou_2014_BMC.Genomics_15_42
PubMedID: 24438588
Gene_locus related to this paper: anoga-Q7PVF9 , 9dipt-a0a084vlt1 , 9dipt-a0a084vdq2 , 9dipt-sime3xf.a , 9dipt-sime3xf.b , 9dipt-a0a084vbj8 , 9dipt-a0a084wan7 , 9dipt-a0a084wik4 , 9dipt-a0a084wk64 , 9dipt-a0a084wez8 , 9dipt-a0a084vji7 , 9dipt-a0a084vlc2 , 9dipt-a0a084vsa5 , 9dipt-a0a084wlk0 , 9dipt-a0a084wah8 , 9dipt-a0a084wln4 , 9dipt-a0a084we78 , 9dipt-a0a084wjm6 , 9dipt-a0a084wjm7 , 9dipt-a0a084we77 , 9dipt-a0a084wlk1 , 9dipt-a0a084we80 , 9dipt-a0a084wjm4 , 9dipt-a0a084w1n7 , 9dipt-a0a084we79 , 9dipt-a0a084wev9 , 9dipt-a0a084vlc3 , 9dipt-a0a084vdq4 , 9dipt-a0a084vdq5 , 9dipt-a0a084vdq1 , 9dipt-a0a084wah9 , 9dipt-a0a084wan6 , 9dipt-a0a084wlj8 , 9dipt-a0a084wk45 , 9dipt-a0a084wk46 , 9dipt-a0a084wlj9 , 9dipt-a0a084vsa4 , 9dipt-a0a084vs93 , 9dipt-a0a084wl93 , anosi-a0a0f7kyf5 , anosi-a0a0f7l1f2 , anosi-a0a084wum0 , anost-a0a182xxz0 , anosi-a0a084vn28 , anosi-a0a084vpt0 , anoga-q7q887

Title : Disease-modifying effects of RHC80267 and JZL184 in a pilocarpine mouse model of temporal lobe epilepsy - Ma_2014_CNS.Neurosci.Ther_20_905
Author(s) : Ma L , Wang L , Yang F , Meng XD , Wu C , Ma H , Jiang W
Ref : CNS Neurosci Ther , 20 :905 , 2014
Abstract : INTRODUCTION: Patients with temporal lobe epilepsy (TLE) often suffer from comorbid psychiatric diagnoses such as depression, anxiety, or impaired cognitive performance. Endocannabinoid (eCB) signaling is a key regulator of synaptic neurotransmission and has been implicated in the mechanisms of epilepsy as well as several mood disorders and cognitive impairments. AIMS: We employed a pilocarpine model of TLE in C57/BJ mice to investigate the role of eCB signaling in epileptogenesis and concomitant psychiatric comorbidities. METHODS AND
RESULTS: We sought to alter the neuronal levels of a known eCB receptor ligand, 2-arachidonylglycerol (2-AG), through the use of RHC80267 or JZL184. Pilocarpine-treated mice were treated with RHC80267 (1.3 mumol) or JZL184 (20 mg/kg) immediately after the termination of status epilepticus (SE), which was followed by daily treatment for the next 7 days. Our results indicated that RHC80267 treatment significantly reduced the percentage of mice suffering from spontaneous recurrent seizures (SRS) in addition to decreasing the duration of observed seizures when compared to vehicle treatment. Furthermore, RHC80267 attenuated depression and anxiety-related behaviors, improved previously impaired spatial learning and memory, and inhibited seizure-induced hippocampal neuronal loss during the chronic epileptic period. In contrast, JZL184 administration markedly increased the frequency and the duration of observed SRS, enhanced the previously impaired neuropsychological performance, and increased hippocampal damage following SE.
CONCLUSIONS: These findings suggest that RHC80267 treatment after the onset of SE could result in an amelioration of the effects found during the chronic epileptic period and yield an overall decrease in epileptic symptoms and comorbid conditions. Thus, alterations to endocannabinoid signaling may serve as a potential mechanism to prevent epileptogenesis and manipulation of this signaling pathway as a possible drug target.
ESTHER : Ma_2014_CNS.Neurosci.Ther_20_905
PubMedSearch : Ma_2014_CNS.Neurosci.Ther_20_905
PubMedID: 24989980

Title : Molecular Mechanisms of Reduced Nerve Toxicity by Titanium Dioxide Nanoparticles in the Phoxim-Exposed Brain of Bombyx mori - Xie_2014_PLoS.One_9_e101062
Author(s) : Xie Y , Wang B , Li F , Ma L , Ni M , Shen W , Hong F , Li B
Ref : PLoS ONE , 9 :e101062 , 2014
Abstract : Bombyx mori (B. mori), silkworm, is one of the most important economic insects in the world, while phoxim, an organophosphorus (OP) pesticide, impact its economic benefits seriously. Phoxim exposure can damage the brain, fatbody, midgut and haemolymph of B. mori. However the metabolism of proteins and carbohydrates in phoxim-exposed B. mori can be improved by Titanium dioxide nanoparticles (TiO2 NPs). In this study, we explored whether TiO2 NPs treatment can reduce the phoxim-induced brain damage of the 5th larval instar of B. mori. We observed that TiO2 NPs pretreatments significantly reduced the mortality of phoxim-exposed larva and relieved severe brain damage and oxidative stress under phoxim exposure in the brain. The treatments also relieved the phoxim-induced increases in the contents of acetylcholine (Ach), glutamate (Glu) and nitric oxide (NO) and the phoxim-induced decreases in the contents of norepinephrine (NE), Dopamine (DA), and 5-hydroxytryptamine (5-HT), and reduced the inhibition of acetylcholinesterase (AChE), Na+/K+-ATPase, Ca2+-ATPase, and Ca2+/Mg2+-ATPase activities and the activation of total nitric oxide synthase (TNOS) in the brain. Furthermore, digital gene expression profile (DGE) analysis and real time quantitative PCR (qRT-PCR) assay revealed that TiO2 NPs pretreatment inhibited the up-regulated expression of ace1, cytochrome c, caspase-9, caspase-3, Bm109 and down-regulated expression of BmIap caused by phoxim; these genes are involved in nerve conduction, oxidative stress and apoptosis. TiO2 NPs pretreatment also inhibited the down-regulated expression of H+ transporting ATP synthase and vacuolar ATP synthase under phoxim exposure, which are involved in ion transport and energy metabolism. These results indicate that TiO2 NPs pretreatment reduced the phoxim-induced nerve toxicity in the brain of B. mori.
ESTHER : Xie_2014_PLoS.One_9_e101062
PubMedSearch : Xie_2014_PLoS.One_9_e101062
PubMedID: 24971466

Title : Draft Genome Sequence of a Clinical Strain of Yersinia enterocolitica (IP10393) of Bioserotype 4\/O:3 from France - Savin_2013_Genome.Announc_1_e00150
Author(s) : Savin C , Frangeul L , Ma L , Bouchier C , Moszer I , Carniel E
Ref : Genome Announc , 1 :e00150 , 2013
Abstract : We sequenced the genome of a clinical isolate of Yersinia enterocolitica (IP10393) from France. This strain belongs to bioserotype 4/O:3, which is the most common pathogenic subgroup worldwide. The draft genome has a size of 4,463,212 bp and a G+C content of 47.0%, and it is predicted to contain 4,181 coding sequences.
ESTHER : Savin_2013_Genome.Announc_1_e00150
PubMedSearch : Savin_2013_Genome.Announc_1_e00150
PubMedID: 23469338
Gene_locus related to this paper: yerbe-c4rym7 , yeren-k1bwy7

Title : Contamination of bananas with beauvericin and fusaric acid produced by Fusarium oxysporum f. sp. cubense - Li_2013_PLoS.One_8_e70226
Author(s) : Li C , Zuo C , Deng G , Kuang R , Yang Q , Hu C , Sheng O , Zhang S , Ma L , Wei Y , Yang J , Liu S , Biswas MK , Viljoen A , Yi G
Ref : PLoS ONE , 8 :e70226 , 2013
Abstract : BACKGROUND: Fusarium wilt, caused by the fungal pathogen Fusarium oxysporum f. sp. cubense (Foc), is one of the most destructive diseases of banana. Toxins produced by Foc have been proposed to play an important role during the pathogenic process. The objectives of this study were to investigate the contamination of banana with toxins produced by Foc, and to elucidate their role in pathogenesis. METHODOLOGY/PRINCIPAL FINDINGS: Twenty isolates of Foc representing races 1 and 4 were isolated from diseased bananas in five Chinese provinces. Two toxins were consistently associated with Foc, fusaric acid (FA) and beauvericin (BEA). Cytotoxicity of the two toxins on banana protoplast was determined using the Alamar Blue assay. The virulence of 20 Foc isolates was further tested by inoculating tissue culture banana plantlets, and the contents of toxins determined in banana roots, pseudostems and leaves. Virulence of Foc isolates correlated well with toxin deposition in the host plant. To determine the natural occurrence of the two toxins in banana plants with Fusarium wilt symptoms, samples were collected before harvest from the pseudostems, fruit and leaves from 10 Pisang Awak 'Guangfen #1' and 10 Cavendish 'Brazilian' plants. Fusaric acid and BEA were detected in all the tissues, including the fruits. CONCLUSIONS/SIGNFICANCE: The current study provides the first investigation of toxins produced by Foc in banana. The toxins produced by Foc, and their levels of contamination of banana fruits, however, were too low to be of concern to human and animal health. Rather, these toxins appear to contribute to the pathogenicity of the fungus during infection of banana plants.
ESTHER : Li_2013_PLoS.One_8_e70226
PubMedSearch : Li_2013_PLoS.One_8_e70226
PubMedID: 23922960
Gene_locus related to this paper: gibf5-fub5

Title : Genomic and secretomic analyses reveal unique features of the lignocellulolytic enzyme system of Penicillium decumbens - Liu_2013_PLoS.One_8_e55185
Author(s) : Liu G , Zhang L , Wei X , Zou G , Qin Y , Ma L , Li J , Zheng H , Wang S , Wang C , Xun L , Zhao GP , Zhou Z , Qu Y
Ref : PLoS ONE , 8 :e55185 , 2013
Abstract : Many Penicillium species could produce extracellular enzyme systems with good lignocellulose hydrolysis performance. However, these species and their enzyme systems are still poorly understood and explored due to the lacking of genetic information. Here, we present the genomic and secretomic analyses of Penicillium decumbens that has been used in industrial production of lignocellulolytic enzymes in China for more than fifteen years. Comparative genomics analysis with the phylogenetically most similar species Penicillium chrysogenum revealed that P. decumbens has evolved with more genes involved in plant cell wall degradation, but fewer genes in cellular metabolism and regulation. Compared with the widely used cellulase producer Trichoderma reesei, P. decumbens has a lignocellulolytic enzyme system with more diverse components, particularly for cellulose binding domain-containing proteins and hemicellulases. Further, proteomic analysis of secretomes revealed that P. decumbens produced significantly more lignocellulolytic enzymes in the medium with cellulose-wheat bran as the carbon source than with glucose. The results expand our knowledge on the genetic information of lignocellulolytic enzyme systems in Penicillium species, and will facilitate rational strain improvement for the production of highly efficient enzyme systems used in lignocellulose utilization from Penicillium species.
ESTHER : Liu_2013_PLoS.One_8_e55185
PubMedSearch : Liu_2013_PLoS.One_8_e55185
PubMedID: 23383313
Gene_locus related to this paper: peno1-s7zjd1 , peno1-s8aym9 , peno1-s7zcd7 , peno1-s8aui7 , peno1-s7zba9 , peno1-s7z7w2 , peno1-s7zkn6 , peno1-s8ak78 , peno1-s7z721 , peno1-s8ajn6 , peno1-s7zqw4 , peno1-s8bba0 , peno1-s8b4w2 , peno1-s7zta4 , peno1-s8a1h3 , peno1-s8aiq5 , peno1-s8ba66 , peno1-s7zxp5 , penox-poxo

Title : Discovery of a novel esterase subfamily sharing an identified arm sequence (ArmEst) by gene-specific metagenomic PCR - Zhang_2013_Biotechnol.Lett_35_1937
Author(s) : Zhang A , Zhao R , Jin P , Ma L , Xiong X , Xie T , Pei X , Yu L , Yin X , Wang Q
Ref : Biotechnol Lett , 35 :1937 , 2013
Abstract : A gene-specific, metagenomic PCR method has led to the discovery of a novel esterase subfamily consisting of five homologous members. Sequence analysis of this esterase subfamily, named the ArmEst subfamily, revealed a unique conserved pattern with a significant variable interior sequence flanked by two symmetric and identical long arm sequences. The two homologous long arm sequences had 100 % sequence identity and symmetry at both ends between the five members of this esterase class, but only 17-58 % identity was shared for the internal sequence. The biochemical properties of two of the ArmEst esterases definitively demonstrated that they are true active esterases rather than pseudogenes. This is the first report presenting an esterase subfamily containing a unique arm sequence, indicating a rare homologous recombination occurring in the coding area of a functional gene to generate their functional diversity.
ESTHER : Zhang_2013_Biotechnol.Lett_35_1937
PubMedSearch : Zhang_2013_Biotechnol.Lett_35_1937
PubMedID: 23881330
Gene_locus related to this paper: 9bact-q6rjm3 , 9bact-m1plb8

Title : Transcriptional characteristics of gene expression in the midgut of domestic silkworms (Bombyx mori) exposed to phoxim - Gu_2013_Pestic.Biochem.Physiol_105_36
Author(s) : Gu ZY , Sun SS , Wang YH , Wang BB , Xie Y , Ma L , Wang JM , Shen WD , Li B
Ref : Pesticide Biochemistry and Physiology , 105 :36 , 2013
Abstract : Silkworm (Bombyx mori) is not only an economically important insect but also a model system for lepidoptera. As a vital organ of digestion and nutrient absorption, the midgut of insects also serves as the first physiological barrier to chemical pesticides. In this study, microarray was performed to profile the gene expression changes in the midgut of silkworms exposed to phoxim. After 24h of phoxim exposure (4.0mug/mL), 266 genes displayed at least 2.0-fold changes in expression levels. Among them, 192 genes were up-regulated, and 74 genes were down-regulated. The most significant changes were 14.88-fold up-regulation and 23.36-fold down-regulation. According to gene ontology annotation and pathway analysis, differentially expressed genes were mainly classified into different groups based on their potential involvements in detoxification, immunne response, stress response, energy metabolism and transport. Particularly, the transcription levels of detoxification-related genes were up-regulated, such as cytochrome P450s, esterases and glutathione-S-transferase (GST), indicating increased detoxification activity in the midgut. Our study provides new insights into the molecular mechanism of pesticide metabolism in the midgut of insects, which may promote the development of highly efficient insecticides.
ESTHER : Gu_2013_Pestic.Biochem.Physiol_105_36
PubMedSearch : Gu_2013_Pestic.Biochem.Physiol_105_36
PubMedID: 24238288

Title : Genomic analysis of smooth tubercle bacilli provides insights into ancestry and pathoadaptation of Mycobacterium tuberculosis - Supply_2013_Nat.Genet_45_172
Author(s) : Supply P , Marceau M , Mangenot S , Roche D , Rouanet C , Khanna V , Majlessi L , Criscuolo A , Tap J , Pawlik A , Fiette L , Orgeur M , Fabre M , Parmentier C , Frigui W , Simeone R , Boritsch EC , Debrie AS , Willery E , Walker D , Quail MA , Ma L , Bouchier C , Salvignol G , Sayes F , Cascioferro A , Seemann T , Barbe V , Locht C , Gutierrez MC , Leclerc C , Bentley SD , Stinear TP , Brisse S , Medigue C , Parkhill J , Cruveiller S , Brosch R
Ref : Nat Genet , 45 :172 , 2013
Abstract : Global spread and limited genetic variation are hallmarks of M. tuberculosis, the agent of human tuberculosis. In contrast, Mycobacterium canettii and related tubercle bacilli that also cause human tuberculosis and exhibit unusual smooth colony morphology are restricted to East Africa. Here, we sequenced and analyzed the whole genomes of five representative strains of smooth tubercle bacilli (STB) using Sanger (4-5x coverage), 454/Roche (13-18x coverage) and/or Illumina DNA sequencing (45-105x coverage). We show that STB isolates are highly recombinogenic and evolutionarily early branching, with larger genome sizes, higher rates of genetic variation, fewer molecular scars and distinct CRISPR-Cas systems relative to M. tuberculosis. Despite the differences, all tuberculosis-causing mycobacteria share a highly conserved core genome. Mouse infection experiments showed that STB strains are less persistent and virulent than M. tuberculosis. We conclude that M. tuberculosis emerged from an ancestral STB-like pool of mycobacteria by gain of persistence and virulence mechanisms, and we provide insights into the molecular events involved.
ESTHER : Supply_2013_Nat.Genet_45_172
PubMedSearch : Supply_2013_Nat.Genet_45_172
PubMedID: 23291586
Gene_locus related to this paper: mycmm-b2ht49 , myctu-cut3 , myctu-cutas1 , myctu-cutas2 , myctu-Rv1069c , myctu-RV1215C , myctu-RV1758 , myctu-Rv2045c , myctu-RV3452 , myctu-RV3724 , myctu-Rv3802c

Title : The prion protein modulates A-type K+ currents mediated by Kv4.2 complexes through dipeptidyl aminopeptidase-like protein 6 - Mercer_2013_J.Biol.Chem_288_37241
Author(s) : Mercer RC , Ma L , Watts JC , Strome R , Wohlgemuth S , Yang J , Cashman NR , Coulthart MB , Schmitt-Ulms G , Jhamandas JH , Westaway D
Ref : Journal of Biological Chemistry , 288 :37241 , 2013
Abstract : Widely expressed in the adult central nervous system, the cellular prion protein (PrP(C)) is implicated in a variety of processes, including neuronal excitability. Dipeptidyl aminopeptidase-like protein 6 (DPP6) was first identified as a PrP(C) interactor using in vivo formaldehyde cross-linking of wild type (WT) mouse brain. This finding was confirmed in three cell lines and, because DPP6 directs the functional assembly of K(+) channels, we assessed the impact of WT and mutant PrP(C) upon Kv4.2-based cell surface macromolecular complexes. Whereas a Gerstmann-Straussler-Scheinker disease version of PrP with eight extra octarepeats was a loss of function both for complex formation and for modulation of Kv4.2 channels, WT PrP(C), in a DPP6-dependent manner, modulated Kv4.2 channel properties, causing an increase in peak amplitude, a rightward shift of the voltage-dependent steady-state inactivation curve, a slower inactivation, and a faster recovery from steady-state inactivation. Thus, the net impact of wt PrP(C) was one of enhancement, which plays a critical role in the down-regulation of neuronal membrane excitability and is associated with a decreased susceptibility to seizures. Insofar as previous work has established a requirement for WT PrP(C) in the Abeta-dependent modulation of excitability in cholinergic basal forebrain neurons, our findings implicate PrP(C) regulation of Kv4.2 channels as a mechanism contributing to the effects of oligomeric Abeta upon neuronal excitability and viability.
ESTHER : Mercer_2013_J.Biol.Chem_288_37241
PubMedSearch : Mercer_2013_J.Biol.Chem_288_37241
PubMedID: 24225951
Gene_locus related to this paper: human-DPP6

Title : The anti-inflammatory effect of donepezil on experimental autoimmune encephalomyelitis in C57 BL\/6 mice - Jiang_2013_Neuropharmacol_73C_415
Author(s) : Jiang Y , Zou Y , Chen S , Zhu C , Wu A , Liu Y , Ma L , Zhu D , Ma X , Liu M , Kang Z , Pi R , Peng F , Wang Q , Chen X
Ref : Neuropharmacology , 73C :415 , 2013
Abstract : Donepezil is a potent and selective acetylcholinesterase inhibitor. It has been reported to restore cognitive performance in multiple sclerosis (MS) patients and experimental autoimmune encephalomyelitis (EAE) mice, an established model of MS. However, there are no reports about the anti-inflammatory effects of donepezil on EAE. In this study, the donepezil treatments on EAE mice were initiated at day 7 post immunization (7 p.i., subclinical periods, early donepezil treatment) and day 13 p.i. (clinical periods, late donepezil treatment) with the dosage of 1, 2 and 4 mg/kg/d respectively and the treatments persisted throughout the experiments. Blood-brain barrier (BBB) permeability was detected by Evan's blue content, the expression of matrix metalloproteinase-2 (MMP-2) and MMP-9, Akt and phosphorylated Akt (p-Akt) as well as nerve growth factor (NGF) and its precursor form (proNGF) in the brains of EAE mice were detected by Western blot, and the levels of interferon-gamma and interleukin-4 in the splenocytes culture supernatants and brains of EAE mice were evaluated by ELISA. The results showed that the 2 mg/kg/d late donepezil treatment was the optimal dosage and could ameliorate clinical and pathological parameters, improve magnetic resonance imaging outcomes, reduce the permeability of BBB, inhibit the production of MMP-2 and MMP-9, modulate the expression of NGF and proNGF, increase Th2 bias and the phosphorylation of Akt in the brains of EAE mice. Our data suggested that the anti-inflammatory effects of donepezil may be a novel mechanism on treating EAE and provided further insights to understand the donepezil's neuroprotective activities in MS.
ESTHER : Jiang_2013_Neuropharmacol_73C_415
PubMedSearch : Jiang_2013_Neuropharmacol_73C_415
PubMedID: 23831366

Title : Asperterpenols A and B, New Sesterterpenoids Isolated from a Mangrove Endophytic Fungus Aspergillus sp. 085242 - Xiao_2013_Org.Lett_15_2522
Author(s) : Xiao Z , Huang H , Shao C , Xia X , Ma L , Huang X , Lu Y , Lin Y , Long Y , She Z
Ref : Org Lett , 15 :2522 , 2013
Abstract : Asperterpenol A (1) and asperterpenol B (2), two novel sesterterpenoids with an unusual 5/8/6/6 tetracyclic ring skeleton, were isolated from a mangrove endophytic fungus Aspergillus sp. 085242. The structures were elucidated on the basis of spectroscopic methods and the absolute configurations determined by single-crystal X-ray diffraction analysis. Compounds 1 and 2 inhibit acetylcholinesterase with IC50 values of 2.3 and 3.0 muM, respectively.
ESTHER : Xiao_2013_Org.Lett_15_2522
PubMedSearch : Xiao_2013_Org.Lett_15_2522
PubMedID: 23642191

Title : Draft genome sequences of four axenic Mycoplasma genitalium strains isolated from Denmark, Japan, and Australia - McGowin_2012_J.Bacteriol_194_6010
Author(s) : McGowin CL , Ma L , Jensen JS , Mancuso MM , Hamasuna R , Adegboye D , Martin DH
Ref : Journal of Bacteriology , 194 :6010 , 2012
Abstract : The DNA genome of Mycoplasma genitalium currently represents the smallest of all known human bacterial pathogens. Despite their clinical importance in sexually transmitted infection and relevance as model bacterial pathogens, genomic diversity among M. genitalium strains worldwide is unknown. Herein we present the complete draft genome sequences of four geographically diverse strains of M. genitalium.
ESTHER : McGowin_2012_J.Bacteriol_194_6010
PubMedSearch : McGowin_2012_J.Bacteriol_194_6010
PubMedID: 23045512

Title : A novel NADH-dependent and FAD-containing hydroxylase is crucial for nicotine degradation by Pseudomonas putida - Tang_2011_J.Biol.Chem_286_39179
Author(s) : Tang H , Yao Y , Zhang D , Meng X , Wang L , Yu H , Ma L , Xu P
Ref : Journal of Biological Chemistry , 286 :39179 , 2011
Abstract : Nicotine, the main alkaloid produced by Nicotiana tabacum and other Solanaceae, is very toxic and may be a leading toxicant causing preventable disease and death, with the rise in global tobacco consumption. Several different microbial pathways of nicotine metabolism have been reported: Arthrobacter uses the pyridine pathway, and Pseudomonas, like mammals, uses the pyrrolidine pathway. We identified and characterized a novel 6-hydroxy-3-succinoyl-pyridine (HSP) hydroxylase (HspB) using enzyme purification, peptide sequencing, and sequencing of the Pseudomonas putida S16 genome. The HSP hydroxylase has no known orthologs and converts HSP to 2,5-dihydroxy-pyridine and succinic semialdehyde, using NADH. (18)O(2) labeling experiments provided direct evidence for the incorporation of oxygen from O(2) into 2,5-dihydroxy-pyridine. The hspB gene deletion showed that this enzyme is essential for nicotine degradation, and site-directed mutagenesis identified an FAD-binding domain. This study demonstrates the importance of the newly discovered enzyme HspB, which is crucial for nicotine degradation by the Pseudomonas strain.
ESTHER : Tang_2011_J.Biol.Chem_286_39179
PubMedSearch : Tang_2011_J.Biol.Chem_286_39179
PubMedID: 21949128
Gene_locus related to this paper: psep6-f8g0m2

Title : Azaphilones and p-terphenyls from the mangrove endophytic fungus Penicillium chermesinum (ZH4-E2) isolated from the South China Sea - Huang_2011_J.Nat.Prod_74_997
Author(s) : Huang H , Feng X , Xiao Z , Liu L , Li H , Ma L , Lu Y , Ju J , She Z , Lin Y
Ref : Journal of Natural Products , 74 :997 , 2011
Abstract : Eight secondary metabolites, including three new azaphilones (chermesinones A-C, 1-3), three new p-terphenyls (6'-O-desmethylterphenyllin, 4; 3-hydroxy-6'-O-desmethylterphenyllin, 5; 3''-deoxy-6'-O-desmethylcandidusin B, 7), and two known p-terphenyls (6, 8), were isolated from the culture of the mangrove endophytic fungus Penicillium chermesinum (ZH4-E2). Their structures were established by spectroscopic analysis. The absolute configuration of 1 was determined by X-ray crystallography. Terphenyls 4, 5, and 6 exhibited strong inhibitory effects against alpha-glucosidase with IC50 values of 0.9, 4.9, and 2.5 muM, respectively. Terphenyls 7 and 8 showed inhibitory activity toward acetylcholinesterase with IC50 values of 7.8 and 5.2 muM.
ESTHER : Huang_2011_J.Nat.Prod_74_997
PubMedSearch : Huang_2011_J.Nat.Prod_74_997
PubMedID: 21510637

Title : Analysis of the Legionella longbeachae genome and transcriptome uncovers unique strategies to cause Legionnaires' disease - Cazalet_2010_PLoS.Genet_6_e1000851
Author(s) : Cazalet C , Gomez-Valero L , Rusniok C , Lomma M , Dervins-Ravault D , Newton HJ , Sansom FM , Jarraud S , Zidane N , Ma L , Bouchier C , Etienne J , Hartland EL , Buchrieser C
Ref : PLoS Genet , 6 :e1000851 , 2010
Abstract : Legionella pneumophila and L. longbeachae are two species of a large genus of bacteria that are ubiquitous in nature. L. pneumophila is mainly found in natural and artificial water circuits while L. longbeachae is mainly present in soil. Under the appropriate conditions both species are human pathogens, capable of causing a severe form of pneumonia termed Legionnaires' disease. Here we report the sequencing and analysis of four L. longbeachae genomes, one complete genome sequence of L. longbeachae strain NSW150 serogroup (Sg) 1, and three draft genome sequences another belonging to Sg1 and two to Sg2. The genome organization and gene content of the four L. longbeachae genomes are highly conserved, indicating strong pressure for niche adaptation. Analysis and comparison of L. longbeachae strain NSW150 with L. pneumophila revealed common but also unexpected features specific to this pathogen. The interaction with host cells shows distinct features from L. pneumophila, as L. longbeachae possesses a unique repertoire of putative Dot/Icm type IV secretion system substrates, eukaryotic-like and eukaryotic domain proteins, and encodes additional secretion systems. However, analysis of the ability of a dotA mutant of L. longbeachae NSW150 to replicate in the Acanthamoeba castellanii and in a mouse lung infection model showed that the Dot/Icm type IV secretion system is also essential for the virulence of L. longbeachae. In contrast to L. pneumophila, L. longbeachae does not encode flagella, thereby providing a possible explanation for differences in mouse susceptibility to infection between the two pathogens. Furthermore, transcriptome analysis revealed that L. longbeachae has a less pronounced biphasic life cycle as compared to L. pneumophila, and genome analysis and electron microscopy suggested that L. longbeachae is encapsulated. These species-specific differences may account for the different environmental niches and disease epidemiology of these two Legionella species.
ESTHER : Cazalet_2010_PLoS.Genet_6_e1000851
PubMedSearch : Cazalet_2010_PLoS.Genet_6_e1000851
PubMedID: 20174605
Gene_locus related to this paper: legln-d3hsy4 , legln-d3hk89 , legln-d3hkd5 , legln-d3hkd7 , legln-d3hld6 , legln-d3hqa1 , legln-d3ht65 , leglo-d1rd29 , leglo-d1re65 , leglo-d1rgc9 , legln-d3hr23 , leglo-d1rin5 , legln-d3hq45 , legln-d3hnr8

Title : From array-based hybridization of Helicobacter pylori isolates to the complete genome sequence of an isolate associated with MALT lymphoma - Thiberge_2010_BMC.Genomics_11_368
Author(s) : Thiberge JM , Boursaux-Eude C , Lehours P , Dillies MA , Creno S , Coppee JY , Rouy Z , Lajus A , Ma L , Burucoa C , Ruskone-Foumestraux A , Courillon-Mallet A , De Reuse H , Boneca IG , Lamarque D , Megraud F , Delchier JC , Medigue C , Bouchier C , Labigne A , Raymond J
Ref : BMC Genomics , 11 :368 , 2010
Abstract : BACKGROUND: Helicobacter pylori infection is associated with several gastro-duodenal inflammatory diseases of various levels of severity. To determine whether certain combinations of genetic markers can be used to predict the clinical source of the infection, we analyzed well documented and geographically homogenous clinical isolates using a comparative genomics approach. RESULTS: A set of 254 H. pylori genes was used to perform array-based comparative genomic hybridization among 120 French H. pylori strains associated with chronic gastritis (n = 33), duodenal ulcers (n = 27), intestinal metaplasia (n = 17) or gastric extra-nodal marginal zone B-cell MALT lymphoma (n = 43). Hierarchical cluster analyses of the DNA hybridization values allowed us to identify a homogeneous subpopulation of strains that clustered exclusively with cagPAI minus MALT lymphoma isolates. The genome sequence of B38, a representative of this MALT lymphoma strain-cluster, was completed, fully annotated, and compared with the six previously released H. pylori genomes (i.e. J99, 26695, HPAG1, P12, G27 and Shi470). B38 has the smallest H. pylori genome described thus far (1,576,758 base pairs containing 1,528 CDSs); it contains the vacAs2m2 allele and lacks the genes encoding the major virulence factors (absence of cagPAI, babB, babC, sabB, and homB). Comparative genomics led to the identification of very few sequences that are unique to the B38 strain (9 intact CDSs and 7 pseudogenes). Pair-wise genomic synteny comparisons between B38 and the 6 H. pylori sequenced genomes revealed an almost complete co-linearity, never seen before between the genomes of strain Shi470 (a Peruvian isolate) and B38. CONCLUSION: These isolates are deprived of the main H. pylori virulence factors characterized previously, but are nonetheless associated with gastric neoplasia.
ESTHER : Thiberge_2010_BMC.Genomics_11_368
PubMedSearch : Thiberge_2010_BMC.Genomics_11_368
PubMedID: 20537153

Title : Identification of pancreatic juice proteins as biomarkers of pancreatic cancer - Gao_2010_Oncol.Rep_23_1683
Author(s) : Gao J , Zhu F , Lv S , Li Z , Ling Z , Gong Y , Jie C , Ma L
Ref : Oncol Rep , 23 :1683 , 2010
Abstract : Pancreatic juice is a potential source of proteins associated with pancreatic cancer (PC) due to the proximity of ducts to tumor tissue. Therefore, screening of proteins in pancreatic juice from PC patients may identify new PC biomarkers. We analyzed pancreatic juice from patients with pancreatic diseases including PC, chronic pancreatitis (CP) and simple choledocholithiasis (CDS) by 2-DE. Protein spots from PC patients that changed >2-fold compared with both CP and CDS were selected and identified by mass spectrometry (MS). mRNA levels were measured by QRT-PCR in PC cell lines, PC tissues and adjacent pancreatic normal (PN) tissues. Relationships between mRNA levels in PC tissues and their clinical characteristics and promoter methylation were analyzed in PC cell lines and tissues. We found that four proteins were significantly changed in PC compared to CP and simple CDS. Two proteins were up-regulated, serine proteinase-2 (PRSS2) preproprotein and pancreatic lipase-related protein-1 (PLRP1), and two proteins were down-regulated, chymotrypsinogen B (CTRB) precursor and elastase 3B (ELA3B) preproprotein. In all PC cell lines, PRSS 2 mRNA levels were elevated, while PLRP 1 mRNA was detected in 4/5 cell lines. ELA3B mRNA was undetectable in all cell lines, but CTRB mRNA was detected in 2/5 cell lines. In PC tissues compared to PN, levels of PRSS2 mRNA were significantly higher, ELA3B significantly lower, and PLRP1 and CTRB not significantly different. Elevated PRSS2 mRNA levels correlated with high T stage. The ELA3B gene promoter had higher methylation in PC cell lines and tissues compared with PN tissues, and correlated with low ELA3B gene expression. In conclusion, comparative proteomic analysis of pancreatic juice from PC patients is a powerful method to find new PC biomarkers. Hyperexpression of the PRSS2 gene and hypermethylation of ELA3B gene promoter were associated with PC, raising the possibility of their application as new biomarkers in PC diagnosis and screening.
ESTHER : Gao_2010_Oncol.Rep_23_1683
PubMedSearch : Gao_2010_Oncol.Rep_23_1683
PubMedID: 20428826

Title : Synthesis of 4-[(diethylamino)methyl]-phenol derivatives as novel cholinesterase inhibitors with selectivity towards butyrylcholinesterase - Yu_2010_Bioorg.Med.Chem.Lett_20_3254
Author(s) : Yu L , Cao R , Yi W , Yan Q , Chen Z , Ma L , Peng W , Song H
Ref : Bioorganic & Medicinal Chemistry Lett , 20 :3254 , 2010
Abstract : A series of novel cholinesterase inhibitors, being composed of 4-[(diethylamino)methyl]-phenoxy and secondary amine which were linked with a different length alkyl chain, were designed and synthesized from the starting material p-hydroxybenzaldehyde. These compounds were evaluated as acetylcholinesterase and butyrylcholinesterase (AChE/BChE) inhibitors. Compounds 25-31 having a secondary amine moiety connected to the phenyl ring via eight CH(2) units spacer were found to be the most potent inhibitors with IC(50) value lower than 220nM and 48nM against AChE and BChE, respectively. Interestingly, these inhibitors showed a surprising selectively toward BChE, and compounds 26, 27, and 30 displayed 12.5, 18.6, and 18.8-fold higher affinity to BChE. The inhibition kinetics analyzed by Linewear-Burk plots revealed that such compounds were mix-type inhibitors.
ESTHER : Yu_2010_Bioorg.Med.Chem.Lett_20_3254
PubMedSearch : Yu_2010_Bioorg.Med.Chem.Lett_20_3254
PubMedID: 20452769

Title : Design, synthesis and evaluation of difunctionalized 4-hydroxybenzaldehyde derivatives as novel cholinesterase inhibitors - Yu_2010_Chem.Pharm.Bull.(Tokyo)_58_1216
Author(s) : Yu L , Cao R , Yi W , Yan Q , Chen Z , Ma L , Song H
Ref : Chem Pharm Bull (Tokyo) , 58 :1216 , 2010
Abstract : A series of difunctionalized 4-hydroxybenzaldehyde derivatives were designed, synthesized and evaluated as cholinesterase (acetylcholinesterase (AChE) and butyrylcholinesterase (BChE)) inhibitors. The results demonstrated that all the compounds had more potent AChE and BChE inhibitory activities than galanthamine-HBr, one of the best cholinesterase inhibitors known so far. The inhibition mechanism revealed that the best active compound 4e displayed a mix-type mode of AChE and BChE by its dual-site interactions with the catalytic triad active center and the peripheral anionic site (PAS) of enzyme. All these data suggested that further development of such compounds may be of interest.
ESTHER : Yu_2010_Chem.Pharm.Bull.(Tokyo)_58_1216
PubMedSearch : Yu_2010_Chem.Pharm.Bull.(Tokyo)_58_1216
PubMedID: 20823602

Title : Toxicological characteristics of nanoparticulate anatase titanium dioxide in mice - Duan_2010_Biomaterials_31_894
Author(s) : Duan Y , Liu J , Ma L , Li N , Liu H , Wang J , Zheng L , Liu C , Wang X , Zhao X , Yan J , Wang S , Wang H , Zhang X , Hong F
Ref : Biomaterials , 31 :894 , 2010
Abstract : In an effort to examine liver injury, immune response, and other physiological effects in mice caused by intragastric administration of nanoparticulate anatase titanium dioxide (5nm), we assessed T lymphocytes, B lymphocyte and NK lymphocyte counts, hematological indices, biochemical parameters of liver functions, and histopathological changes in nanoparticulate titanium dioxide -treated mice. Indeed, mice treated with higher dose nanoparticulate titanium dioxide displayed a reduction in body weight, an increase in coefficients of the liver and histopathological changes in the liver. Specifically, in these nanoparticulate titanium dioxide -treated mice, interleukin-2 activity, white blood cells, red blood cells, haemoglobin, mean corpuscular haemoglobin concentration, thrombocytes, reticulocytes, T lymphocytes (CD3(+), CD4(+), CD8(+)), NK lymphocytes, B lymphocytes, and the ratio of CD4 to CD8 of mice were decreased, whereas NO level, mean corpuscular volume, mean corpuscular haemoglobin, red (cell) distribution width, platelets, hematocrit, mean platelet volume of mice were increased. Furthermore, liver functions were also disrupted, as evidenced by the enhanced activities of alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase, lactate dehydrogenase and cholinesterase, an increase of the total protein, and the reduction of ratio of albumin to globulin, the total bilirubin, triglycerides, and the total cholesterol levels. These results suggested that the liver function damage observed in mice treated with higher dose nanoparticulate titanium dioxide is likely associated with the damage of haemostasis blood system and immune response. However, low dose nanoparticulate anatase TiO(2) has little influences on haemostasis blood system and immune response in mice.
ESTHER : Duan_2010_Biomaterials_31_894
PubMedSearch : Duan_2010_Biomaterials_31_894
PubMedID: 19857890

Title : Oxidative stress in the brain of mice caused by translocated nanoparticulate TiO2 delivered to the abdominal cavity - Ma_2010_Biomaterials_31_99
Author(s) : Ma L , Liu J , Li N , Wang J , Duan Y , Yan J , Liu H , Wang H , Hong F
Ref : Biomaterials , 31 :99 , 2010
Abstract : In order to study the mechanisms underlying the effects of TiO(2) nanoparticles on the brain, ICR mice were injected with nanoparticulate anatase TiO(2) (5 nm) of various doses into the abdominal cavity daily for 14 days. We then examined the coefficient of the brain, the brain pathological changes and oxidative stress-mediated responses, and the accumulation of nanoparticulate anatase TiO(2) and levels of neurochemicals in the brain. The results showed that high-dose nanoparticulate anatase TiO(2) could induce some neurons to turn into filamentous shapes and others into inflammatory cells. The concentration of nanoparticulate anatase TiO(2) in the brain was increased as increases in nanoparticulate anatase TiO(2) dosages used. The oxidative stress and injury of the brain occurred as nanoparticulate anatase TiO(2) appeared to trigger a cascade of reactions such as lipid peroxidation, the decreases of the total anti-oxidation capacity and activities of antioxidative enzymes, the excessive release of nitric oxide, the reduction of glutamic acid, and the downregulated level of acetylcholinesterase activities. We concluded that TiO(2) nanoparticles injected at the abdominal cavity could be translocated into the brain and in turn caused the brain injury.
ESTHER : Ma_2010_Biomaterials_31_99
PubMedSearch : Ma_2010_Biomaterials_31_99
PubMedID: 19783296

Title : The sequence and de novo assembly of the giant panda genome - Li_2010_Nature_463_311
Author(s) : Li R , Fan W , Tian G , Zhu H , He L , Cai J , Huang Q , Cai Q , Li B , Bai Y , Zhang Z , Zhang Y , Wang W , Li J , Wei F , Li H , Jian M , Nielsen R , Li D , Gu W , Yang Z , Xuan Z , Ryder OA , Leung FC , Zhou Y , Cao J , Sun X , Fu Y , Fang X , Guo X , Wang B , Hou R , Shen F , Mu B , Ni P , Lin R , Qian W , Wang G , Yu C , Nie W , Wang J , Wu Z , Liang H , Min J , Wu Q , Cheng S , Ruan J , Wang M , Shi Z , Wen M , Liu B , Ren X , Zheng H , Dong D , Cook K , Shan G , Zhang H , Kosiol C , Xie X , Lu Z , Li Y , Steiner CC , Lam TT , Lin S , Zhang Q , Li G , Tian J , Gong T , Liu H , Zhang D , Fang L , Ye C , Zhang J , Hu W , Xu A , Ren Y , Zhang G , Bruford MW , Li Q , Ma L , Guo Y , An N , Hu Y , Zheng Y , Shi Y , Li Z , Liu Q , Chen Y , Zhao J , Qu N , Zhao S , Tian F , Wang X , Wang H , Xu L , Liu X , Vinar T , Wang Y , Lam TW , Yiu SM , Liu S , Huang Y , Yang G , Jiang Z , Qin N , Li L , Bolund L , Kristiansen K , Wong GK , Olson M , Zhang X , Li S , Yang H
Ref : Nature , 463 :311 , 2010
Abstract : Using next-generation sequencing technology alone, we have successfully generated and assembled a draft sequence of the giant panda genome. The assembled contigs (2.25 gigabases (Gb)) cover approximately 94% of the whole genome, and the remaining gaps (0.05 Gb) seem to contain carnivore-specific repeats and tandem repeats. Comparisons with the dog and human showed that the panda genome has a lower divergence rate. The assessment of panda genes potentially underlying some of its unique traits indicated that its bamboo diet might be more dependent on its gut microbiome than its own genetic composition. We also identified more than 2.7 million heterozygous single nucleotide polymorphisms in the diploid genome. Our data and analyses provide a foundation for promoting mammalian genetic research, and demonstrate the feasibility for using next-generation sequencing technologies for accurate, cost-effective and rapid de novo assembly of large eukaryotic genomes.
ESTHER : Li_2010_Nature_463_311
PubMedSearch : Li_2010_Nature_463_311
PubMedID: 20010809
Gene_locus related to this paper: ailme-ABH15 , ailme-ACHE , ailme-BCHE , ailme-d2gtv3 , ailme-d2gty9 , ailme-d2gu87 , ailme-d2gu97 , ailme-d2gve7 , ailme-d2gwu1 , ailme-d2gx08 , ailme-d2gyt0 , ailme-d2gz36 , ailme-d2gz37 , ailme-d2gz38 , ailme-d2gz39 , ailme-d2gz40 , ailme-d2h5r9 , ailme-d2h7b7 , ailme-d2h9c9 , ailme-d2h794 , ailme-d2hau7 , ailme-d2hau8 , ailme-d2hcd9 , ailme-d2hdi6 , ailme-d2heu6 , ailme-d2hga4 , ailme-d2hqw5 , ailme-d2hs98 , ailme-d2hsx4 , ailme-d2hti6 , ailme-d2htv3 , ailme-d2htz6 , ailme-d2huc7 , ailme-d2hwj8 , ailme-d2hwy7 , ailme-d2hxm1 , ailme-d2hyc8 , ailme-d2hyv2 , ailme-d2hz11 , ailme-d2hza3 , ailme-d2hzr4 , ailme-d2i1l4 , ailme-d2i2g8 , ailme-g1l7m3 , ailme-g1lu36 , ailme-g1m769 , ailme-g1mc29 , ailme-g1mdj8 , ailme-g1mdr5 , ailme-g1mfp4 , ailme-g1mfx5 , ailme-g1lj41 , ailme-g1lm28 , ailme-g1l3u1 , ailme-g1l7l1 , ailme-g1m5i3 , ailme-g1l2f6 , ailme-g1lji5 , ailme-g1lqk3 , ailme-g1l8s9 , ailme-d2h717 , ailme-d2h718 , ailme-d2h719 , ailme-d2h720 , ailme-g1m5v0 , ailme-g1m5y7 , ailme-g1lkt7 , ailme-g1l2a1 , ailme-g1lsc8 , ailme-g1lrp4 , ailme-d2gv02 , ailme-g1mik5 , ailme-g1ljr1 , ailme-g1lxw7 , ailme-d2h8b5 , ailme-d2h2r2 , ailme-d2h9w7 , ailme-g1meh3 , ailme-g1m719

Title : Design, synthesis and biological evaluation of novel dual inhibitors of acetylcholinesterase and beta-secretase - Zhu_2009_Bioorg.Med.Chem_17_1600
Author(s) : Zhu Y , Xiao K , Ma L , Xiong B , Fu Y , Yu H , Wang W , Wang X , Hu D , Peng H , Li J , Gong Q , Chai Q , Tang X , Zhang H , Shen J
Ref : Bioorganic & Medicinal Chemistry , 17 :1600 , 2009
Abstract : To explore novel effective drugs for the treatment of Alzheimer's disease (AD), a series of dual inhibitors of acetylcholineterase (AChE) and beta-secretase (BACE-1) were designed based on the multi-target-directed ligands strategy. Among them, inhibitor 28 exhibited good dual potency in enzyme inhibitory potency assay (BACE-1: IC(50)=0.567 microM; AChE: IC(50)=1.83 microM), and also showed excellent inhibitory effects on Abeta production of APP transfected HEK293 cells (IC(50)=98.7 nM) and mild protective effect against hydrogen peroxide (H(2)O(2))-induced PC12 cell injury. Encouragingly, intracerebroventricular injection of 28 into amyloid precursor protein (APP) transgenic mice caused a 29% reduction of Abeta(1-40) production. Therefore, 28 was demonstrated as a good lead compound for the further study and more importantly, the strategy of AChE and BACE-1 dual inhibitors might be a promising direction for developing novel drugs for AD patients.
ESTHER : Zhu_2009_Bioorg.Med.Chem_17_1600
PubMedSearch : Zhu_2009_Bioorg.Med.Chem_17_1600
PubMedID: 19162488

Title : Synthesis, biological evaluation and molecular modeling of oxoisoaporphine and oxoaporphine derivatives as new dual inhibitors of acetylcholinesterase\/butyrylcholinesterase - Tang_2009_Eur.J.Med.Chem_44_2523
Author(s) : Tang H , Wei YB , Zhang C , Ning FX , Qiao W , Huang SL , Ma L , Huang ZS , Gu LQ
Ref : Eur Journal of Medicinal Chemistry , 44 :2523 , 2009
Abstract : Aporphine alkaloids, isolated from Chinese medicinal herb, are important natural products. We recently reported that synthetic derivatives of oxoisoaporphine alkaloids exhibited high acetylcholinesterase inhibitory activity and high selectivity for AChE over BuChE (Bioorg. Med. Chem. Lett. 2007, 17, 3765-3768). In this paper, further research results were presented. A series of novel derivatives of oxoaporphine alkaloids (5a-j, 4-carboxylic amide-7-oxo-7H-dibenzo[de,g]quinoline, Ar-CONH(CH(2))(n)NR) and their quaternary methiodide salts (6a-h, Ar-CONH(CH(2))(n)N(+)(CH(3))RI(-)) were designed and synthesized as acetylcholinesterase (AChE) and/or butyrylcholinesterase (BuChE) inhibitors. The AChE inhibition potency of synthetic oxoaporphine derivatives was decreased about 2-3 orders of magnitude as compared with that of oxoisoaporphine derivatives. Non-competitive binding mode was found for both kinds of derivatives. Molecular docking simulations on the oxoisoaporphine derivatives 7 series and oxoaporphine derivatives 6 series with AChE from Torpedo californica have demonstrated that the ligands bound to the dual-site of the enzyme.
ESTHER : Tang_2009_Eur.J.Med.Chem_44_2523
PubMedSearch : Tang_2009_Eur.J.Med.Chem_44_2523
PubMedID: 19243862

Title : The genome of the cucumber, Cucumis sativus L - Huang_2009_Nat.Genet_41_1275
Author(s) : Huang S , Li R , Zhang Z , Li L , Gu X , Fan W , Lucas WJ , Wang X , Xie B , Ni P , Ren Y , Zhu H , Li J , Lin K , Jin W , Fei Z , Li G , Staub J , Kilian A , van der Vossen EA , Wu Y , Guo J , He J , Jia Z , Tian G , Lu Y , Ruan J , Qian W , Wang M , Huang Q , Li B , Xuan Z , Cao J , Asan , Wu Z , Zhang J , Cai Q , Bai Y , Zhao B , Han Y , Li Y , Li X , Wang S , Shi Q , Liu S , Cho WK , Kim JY , Xu Y , Heller-Uszynska K , Miao H , Cheng Z , Zhang S , Wu J , Yang Y , Kang H , Li M , Liang H , Ren X , Shi Z , Wen M , Jian M , Yang H , Zhang G , Yang Z , Chen R , Ma L , Liu H , Zhou Y , Zhao J , Fang X , Fang L , Liu D , Zheng H , Zhang Y , Qin N , Li Z , Yang G , Yang S , Bolund L , Kristiansen K , Li S , Zhang X , Wang J , Sun R , Zhang B , Jiang S , Du Y
Ref : Nat Genet , 41 :1275 , 2009
Abstract : Cucumber is an economically important crop as well as a model system for sex determination studies and plant vascular biology. Here we report the draft genome sequence of Cucumis sativus var. sativus L., assembled using a novel combination of traditional Sanger and next-generation Illumina GA sequencing technologies to obtain 72.2-fold genome coverage. The absence of recent whole-genome duplication, along with the presence of few tandem duplications, explains the small number of genes in the cucumber. Our study establishes that five of the cucumber's seven chromosomes arose from fusions of ten ancestral chromosomes after divergence from Cucumis melo. The sequenced cucumber genome affords insight into traits such as its sex expression, disease resistance, biosynthesis of cucurbitacin and 'fresh green' odor. We also identify 686 gene clusters related to phloem function. The cucumber genome provides a valuable resource for developing elite cultivars and for studying the evolution and function of the plant vascular system.
ESTHER : Huang_2009_Nat.Genet_41_1275
PubMedSearch : Huang_2009_Nat.Genet_41_1275
PubMedID: 19881527
Gene_locus related to this paper: cucsa-a0a0a0ktw5 , cucsa-a0a0a0lnt6 , cucsa-a0a0a0kpn7 , cucsa-a0a0a0lvt9 , cucsa-a0a0a0kdx8 , cucsa-a0a0a0m228 , cucsa-a0a0a0kz31 , cucsa-a0a0a0k5t5 , cucsa-a0a0a0kfs7 , cucsa-a0a0a0kjj7 , cucsa-a0a0a0kzs7 , cucsa-a0a0a0l0a6 , cucsa-a0a0a0l4w4 , cucsa-a0a0a0lpz0 , cucsa-a0a0a0ls66

Title : Biochemical toxicity of nano-anatase TiO2 particles in mice - Liu_2009_Biol.Trace.Elem.Res_129_170
Author(s) : Liu H , Ma L , Zhao J , Liu J , Yan J , Ruan J , Hong F
Ref : Biol Trace Elem Res , 129 :170 , 2009
Abstract : Previous research on the biological and toxic effects of nano-TiO(2) particles on animals only limit to a single dose. However, the toxicity caused by single dose nano-TiO(2) does not truly represent ecological and health effects of nano-TiO(2) retained in the environment. In order to further evaluate the toxicity of nano-TiO(2) particles, nano-anatase TiO(2) (5 nm) was injected into the abdominal cavity of ICR mice everyday for 14 days and the coefficients of organs and serum biochemical parameters were investigated. The results showed that, with increasing doses of nano-anatase TiO(2), the coefficients of liver, kidney, and spleen increased gradually, while the coefficients of lung and brain decreased gradually, and the coefficient of heart had little change. The order of the titanium accumulation in the organs was liver > kidneys > spleen > lung > brain > heart. The serum biochemical parameters with lower dose of nano-anatase TiO(2) showed little difference compared with the control mice, while with higher dose of nano-anatase TiO(2), the indicators of liver function, such as alkaline phosphatase, alanine aminotransferase, leucine acid peptide, pseudocholinesterase, total protein, and albumin level, were enhanced significantly; the indicators of kidney function, such as uric acid and blood urea nitrogen, were decreased; the activities of aspartate aminotransferase, creatine kinase, lactate dehydrogenase, and alpha-hydroxybutyrate dehydrogenase, indicator of the myocardium function, were increased. The contents of triglycerides, glucose, and high-density lipoprotein cholesterol were significantly elevated. Taken together, nano-anatase TiO(2) in higher dose caused serious damage to the liver, kidney, and myocardium of mice and disturbed the balance of blood sugar and lipid in mice. The accumulation of titanium in the organs might be closely related to the coefficients of organs and the inflammatory responses of mice.
ESTHER : Liu_2009_Biol.Trace.Elem.Res_129_170
PubMedSearch : Liu_2009_Biol.Trace.Elem.Res_129_170
PubMedID: 19066734

Title : Genome sequence and analysis of the Irish potato famine pathogen Phytophthora infestans - Haas_2009_Nature_461_393
Author(s) : Haas BJ , Kamoun S , Zody MC , Jiang RH , Handsaker RE , Cano LM , Grabherr M , Kodira CD , Raffaele S , Torto-Alalibo T , Bozkurt TO , Ah-Fong AM , Alvarado L , Anderson VL , Armstrong MR , Avrova A , Baxter L , Beynon J , Boevink PC , Bollmann SR , Bos JI , Bulone V , Cai G , Cakir C , Carrington JC , Chawner M , Conti L , Costanzo S , Ewan R , Fahlgren N , Fischbach MA , Fugelstad J , Gilroy EM , Gnerre S , Green PJ , Grenville-Briggs LJ , Griffith J , Grunwald NJ , Horn K , Horner NR , Hu CH , Huitema E , Jeong DH , Jones AM , Jones JD , Jones RW , Karlsson EK , Kunjeti SG , Lamour K , Liu Z , Ma L , Maclean D , Chibucos MC , McDonald H , McWalters J , Meijer HJ , Morgan W , Morris PF , Munro CA , O'Neill K , Ospina-Giraldo M , Pinzon A , Pritchard L , Ramsahoye B , Ren Q , Restrepo S , Roy S , Sadanandom A , Savidor A , Schornack S , Schwartz DC , Schumann UD , Schwessinger B , Seyer L , Sharpe T , Silvar C , Song J , Studholme DJ , Sykes S , Thines M , van de Vondervoort PJ , Phuntumart V , Wawra S , Weide R , Win J , Young C , Zhou S , Fry W , Meyers BC , van West P , Ristaino J , Govers F , Birch PR , Whisson SC , Judelson HS , Nusbaum C
Ref : Nature , 461 :393 , 2009
Abstract : Phytophthora infestans is the most destructive pathogen of potato and a model organism for the oomycetes, a distinct lineage of fungus-like eukaryotes that are related to organisms such as brown algae and diatoms. As the agent of the Irish potato famine in the mid-nineteenth century, P. infestans has had a tremendous effect on human history, resulting in famine and population displacement. To this day, it affects world agriculture by causing the most destructive disease of potato, the fourth largest food crop and a critical alternative to the major cereal crops for feeding the world's population. Current annual worldwide potato crop losses due to late blight are conservatively estimated at $$6.7 billion. Management of this devastating pathogen is challenged by its remarkable speed of adaptation to control strategies such as genetically resistant cultivars. Here we report the sequence of the P. infestans genome, which at approximately 240 megabases (Mb) is by far the largest and most complex genome sequenced so far in the chromalveolates. Its expansion results from a proliferation of repetitive DNA accounting for approximately 74% of the genome. Comparison with two other Phytophthora genomes showed rapid turnover and extensive expansion of specific families of secreted disease effector proteins, including many genes that are induced during infection or are predicted to have activities that alter host physiology. These fast-evolving effector genes are localized to highly dynamic and expanded regions of the P. infestans genome. This probably plays a crucial part in the rapid adaptability of the pathogen to host plants and underpins its evolutionary potential.
ESTHER : Haas_2009_Nature_461_393
PubMedSearch : Haas_2009_Nature_461_393
PubMedID: 19741609
Gene_locus related to this paper: phyin-ENDO2 , phyin-q2m440 , phyin-q58g92 , phyit-d0mqp1 , phyit-d0mqp2 , phyit-d0mt75 , phyit-d0muv1 , phyit-d0mv34 , phyit-d0mv35 , phyit-d0mwf9 , phyit-d0mxu5 , phyit-d0n935 , phyit-d0nax9 , phyit-d0nfs3 , phyit-d0nhj2 , phyit-d0nhj4 , phyit-d0nhj8 , phyit-d0ni28 , phyit-d0nj14 , phyit-d0nj53 , phyit-d0nj54 , phyit-d0njf2 , phyit-d0nkm4 , phyit-d0nr53 , phyit-d0nrb1 , phyit-d0nrk9 , phyit-d0nrl4 , phyit-d0ns26 , phyit-d0ns42 , phyit-d0ns43 , phyit-d0nsr8 , phyit-d0nu41 , phyit-d0nvt3 , phyit-d0nwb6 , phyit-d0nwm8 , phyit-d0nzc0 , phyit-d0nzc1 , phyit-d0p0z1 , phyit-d0p3z2 , phyit-kex1 , phyit-d0n6q6 , phyit-d0n4i8 , phyit-d0mqf7 , phyit-d0n5g6

Title : [Experimental study on peripheral nerve plasticity in rats] - Ma_2008_Zhongguo.Xiu.Fu.Chong.Jian.Wai.Ke.Za.Zhi_22_1073
Author(s) : Ma N , Lu L , Ma L , Zhang J , Zhang Z
Ref : Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi , 22 :1073 , 2008
Abstract : OBJECTIVE: To observe the plastic changes of sensory nerve in terms of structure and function when target organ changed through making the rat model of nerve regeneration by anastomosing the proximal end of sensory nerve and the distal end of motor nerve.
METHODS: Thirty adult SD rats (male or female), weighing 200-250 g, were randomized into three groups (n=10 per group). The left upper limb of the each rat was used as the experimental side, while the right upper limb as the control side. In group A, the medial antebrachial cutaneous nerve was cut 5 mm away from its origin and its proximal end was anastomosed end-to-end to the distal end of musculocutaneous nerve. In group B, the musculocutaneous nerve was cut 5 mm away from its nerve entry point and the proximal end of medial antebrachial cutaneous nerve were anastomosed end-to-end to the distal end of musculocutaneous nerve. In group C, medial antebrachial cutaneous nerve and musculocutaneous nerve were cut, without further anastomosis. Twenty-four weeks after operation, the general condition and the motion of the elbow joint of rats, the wet weight and muscle fiber cross-section area of the biceps brachii as well as the latent period and the amplitude of the evoked potential were observed and the acetylcholinesterase (AchE) staining of nerve of proximal end of anastomosis was conducted.
RESULTS: All the rats survived for 24 weeks with good general condition and without wound infection. The rats in groups A, B and C were lost the active flexion of left elbow joint after operation. The rats in groups A and B got recovered to some degree at 24 weeks. The behavioral evaluation showed that there were 7 limbs in group A and 5 limbs in group B scored as 4-5 points, there was a significant difference when compared with group C (P < 0.05), but there was no significant difference between group A and group B (P > 0.05). Group A and group B were superior to group C in terms of the wet weight and the muscle fiber cross-section area of the biceps brachii (P < 0.05), but no significant difference between group A and group B was detected (P > 0.05). The evoked potential of the biceps brachii and motor nerve fibers in proximal end of anastomosis could be detected in both group A and group B. But there was no significant difference between group A and group B with respects of function recovery of elbow joint, the latent period and the amplitude of the evoked potential of the biceps brachii and the quantity of motor nerve fiber in proximal end of anastomosis (P > 0.05).
CONCLUSION: The change of target organ leads to the sensory nerve plasticity structurally and functionally, which may provide a new approach for peripheral nerve repair.
ESTHER : Ma_2008_Zhongguo.Xiu.Fu.Chong.Jian.Wai.Ke.Za.Zhi_22_1073
PubMedSearch : Ma_2008_Zhongguo.Xiu.Fu.Chong.Jian.Wai.Ke.Za.Zhi_22_1073
PubMedID: 18822731

Title : Reductive evolution and niche adaptation inferred from the genome of Mycobacterium ulcerans, the causative agent of Buruli ulcer - Stinear_2007_Genome.Res_17_192
Author(s) : Stinear TP , Seemann T , Pidot S , Frigui W , Reysset G , Garnier T , Meurice G , Simon D , Bouchier C , Ma L , Tichit M , Porter JL , Ryan J , Johnson PD , Davies JK , Jenkin GA , Small PL , Jones LM , Tekaia F , Laval F , Daffe M , Parkhill J , Cole ST
Ref : Genome Res , 17 :192 , 2007
Abstract : Mycobacterium ulcerans is found in aquatic ecosystems and causes Buruli ulcer in humans, a neglected but devastating necrotic disease of subcutaneous tissue that is rampant throughout West and Central Africa. Here, we report the complete 5.8-Mb genome sequence of M. ulcerans and show that it comprises two circular replicons, a chromosome of 5632 kb and a virulence plasmid of 174 kb. The plasmid is required for production of the polyketide toxin mycolactone, which provokes necrosis. Comparisons with the recently completed 6.6-Mb genome of Mycobacterium marinum revealed >98% nucleotide sequence identity and genome-wide synteny. However, as well as the plasmid, M. ulcerans has accumulated 213 copies of the insertion sequence IS2404, 91 copies of IS2606, 771 pseudogenes, two bacteriophages, and multiple DNA deletions and rearrangements. These data indicate that M. ulcerans has recently evolved via lateral gene transfer and reductive evolution from the generalist, more rapid-growing environmental species M. marinum to become a niche-adapted specialist. Predictions based on genome inspection for the production of modified mycobacterial virulence factors, such as the highly abundant phthiodiolone lipids, were confirmed by structural analyses. Similarly, 11 protein-coding sequences identified as M. ulcerans-specific by comparative genomics were verified as such by PCR screening a diverse collection of 33 strains of M. ulcerans and M. marinum. This work offers significant insight into the biology and evolution of mycobacterial pathogens and is an important component of international efforts to counter Buruli ulcer.
ESTHER : Stinear_2007_Genome.Res_17_192
PubMedSearch : Stinear_2007_Genome.Res_17_192
PubMedID: 17210928
Gene_locus related to this paper: mycmm-b2hds9 , mycmm-b2hg81 , mycmm-b2hgg2 , mycmm-b2hj55 , mycmm-b2hju3 , mycmm-b2hlr0 , mycmm-b2hlv2 , mycmm-b2hq96 , mycmm-b2hsm8 , mycmr-q5sdq4 , myctu-RV1683 , mycua-a0pkg7 , mycua-a0pki1 , mycua-a0pkn2 , mycua-a0pkn5 , mycua-a0pku2 , mycua-a0pl47 , mycua-a0plr3 , mycua-a0plu8 , mycua-a0ply4 , mycua-a0pm12 , mycua-a0pm14 , mycua-a0pme3 , mycua-a0pmj6 , mycua-a0pml9 , mycua-a0pmv0 , mycua-a0pmx9 , mycua-a0pn71 , mycua-a0png7 , mycua-a0png9 , mycua-a0pp56 , mycua-a0ppm6 , mycua-a0pqm2 , mycua-a0pqs2 , mycua-a0pr64 , mycua-a0pr98 , mycua-a0prq2 , mycua-a0prr7 , mycua-a0psb1 , mycua-a0psb4 , mycua-a0psi2 , mycua-a0psi3 , mycua-a0psu3 , mycua-a0pt08 , mycua-a0pt71 , mycua-a0pth6 , mycua-a0ptq0 , mycua-a0pu55 , mycua-a0pum4 , mycua-a0pv11 , mycua-a0pv36 , mycua-a0pv77 , mycua-a0pva4 , mycua-a0pwi8 , mycua-a0pwm4 , mycua-a0pwr6 , mycua-a0pwz5 , mycua-a0px52 , mycua-metx , mycua-a0pmc2 , mycua-a0pvg7 , mycua-a0pwz4 , mycmm-b2hqy3 , mycua-a0pmc3

Title : Methyl 2-(2-(4-formylphenoxy)acetamido)-2-substituted acetate derivatives: a new class of acetylcholinesterase inhibitors - Wen_2007_Bioorg.Med.Chem.Lett_17_2123
Author(s) : Wen H , Zhou Y , Lin C , Ge H , Ma L , Wang Z , Peng W , Song H
Ref : Bioorganic & Medicinal Chemistry Lett , 17 :2123 , 2007
Abstract : A new class of inhibitors of acetylcholinesterase (methyl 2-(2-(4-formylphenoxy)acetamido)-2-substituted acetate derivatives) is described. Compounds 4b and 4i were found to be more potent than galanthamine in inhibiting acetylcholinesterase.
ESTHER : Wen_2007_Bioorg.Med.Chem.Lett_17_2123
PubMedSearch : Wen_2007_Bioorg.Med.Chem.Lett_17_2123
PubMedID: 17317172

Title : Synthesis and biological evaluation of functionalized coumarins as acetylcholinesterase inhibitors - Shen_2005_Eur.J.Med.Chem_40_1307
Author(s) : Shen Q , Peng Q , Shao J , Liu X , Huang Z , Pu X , Ma L , Li YM , Chan AS , Gu L
Ref : Eur Journal of Medicinal Chemistry , 40 :1307 , 2005
Abstract : Three series of functionalized coumarin compounds were designed and prepared as cholinesterase (AChE and BuChE) inhibitors. The biological profile against AChE and BuChE of the prepared compounds was determined. Compound 7b exhibited a mixed-type of AChE inhibitor with IC50 value for the AChE inhibition of 0.19+/-0.01 microM and a high selectivity for AChE/BuChE, and compound 6b acted as non-competitive AChE inhibitor with IC50 value of 0.43+/-0.02 microM. Structure-activity relationships (SARs) of prepared compounds were discussed.
ESTHER : Shen_2005_Eur.J.Med.Chem_40_1307
PubMedSearch : Shen_2005_Eur.J.Med.Chem_40_1307
PubMedID: 16182411

Title : Evidence in the Legionella pneumophila genome for exploitation of host cell functions and high genome plasticity - Cazalet_2004_Nat.Genet_36_1165
Author(s) : Cazalet C , Rusniok C , Bruggemann H , Zidane N , Magnier A , Ma L , Tichit M , Jarraud S , Bouchier C , Vandenesch F , Kunst F , Etienne J , Glaser P , Buchrieser C
Ref : Nat Genet , 36 :1165 , 2004
Abstract : Legionella pneumophila, the causative agent of Legionnaires' disease, replicates as an intracellular parasite of amoebae and persists in the environment as a free-living microbe. Here we have analyzed the complete genome sequences of L. pneumophila Paris (3,503,610 bp, 3,077 genes), an endemic strain that is predominant in France, and Lens (3,345,687 bp, 2,932 genes), an epidemic strain responsible for a major outbreak of disease in France. The L. pneumophila genomes show marked plasticity, with three different plasmids and with about 13% of the sequence differing between the two strains. Only strain Paris contains a type V secretion system, and its Lvh type IV secretion system is encoded by a 36-kb region that is either carried on a multicopy plasmid or integrated into the chromosome. Genetic mobility may enhance the versatility of L. pneumophila. Numerous genes encode eukaryotic-like proteins or motifs that are predicted to modulate host cell functions to the pathogen's advantage. The genome thus reflects the history and lifestyle of L. pneumophila, a human pathogen of macrophages that coevolved with fresh-water amoebae.
ESTHER : Cazalet_2004_Nat.Genet_36_1165
PubMedSearch : Cazalet_2004_Nat.Genet_36_1165
PubMedID: 15467720
Gene_locus related to this paper: legph-q5zsu4 , legpa-q5ws33 , legpa-q5ws59 , legpa-q5ws67 , legpa-q5ws68 , legpa-q5x2c0 , legpa-q5x2r4 , legpa-q5x2s1 , legpa-q5x3a5 , legpa-q5x3d6 , legpa-q5x3j6 , legpa-q5x4r4 , legpa-q5x4t1 , legpa-q5x5b2 , legpa-q5x5z2 , legpa-q5x7f5 , legpa-q5x8e6 , legpa-q5x8m4 , legpa-q5x322 , legpa-q5x405 , legpa-q5x424 , legpa-q5x473 , legpa-q5x590 , legpa-q5x611 , legpa-q5x819 , legpc-a5iar0 , legph-q5zv00 , legph-q5zwi2 , legpl-q5wtd3 , legpl-q5wua5 , legpl-q5wur2 , legpl-q5wvw9 , legpn-Q8KU34 , legpn-Q8RNQ1 , legpn-SBPA , legpn-i7i328 , legpl-q5wsw9

Title : Complete nucleotide sequence and organization of the naphthalene catabolic plasmid pND6-1 from Pseudomonas sp. strain ND6 - Li_2004_Gene_336_231
Author(s) : Li W , Shi J , Wang X , Han Y , Tong W , Ma L , Liu B , Cai B
Ref : Gene , 336 :231 , 2004
Abstract : Pseudomonas sp. strain ND6, which was isolated from industrial wastewater in Tianjin, China, was capable of dissimilating naphthalene as sole carbon and energy sources. We identified one plasmid, pND6-1, which was associated with the metabolism of naphthalene and determined the complete nucleotide sequence of pND6-1 (101,858 bp) using a whole-genome-shotgun approach. Computational analyses indicated that the naphthalene metabolism of the strain ND6 is associated with this plasmid. This is the first report of a complete sequence of naphthalene catabolic plasmid. pND6-1 encodes 102 putative coding sequences (CDSs). Among them, 23 CDSs were predicted to be involved in naphthalene catabolism, 14 were predicted to be involved in transposition and integration, 2 encoded putative transporters, 3 were putative transcriptional regulators, and 9 were proteins necessary for plasmid replication and partitioning. Most of the naphthalene catabolic genes of pND6-1 have 99-100% identity in amino acid sequences homologous to their nearest counterparts found in plasmid pDTG1, NAH7 and in a chromosome region in Pseudomonas stutzeri AN10 except for two duplicated genes (ND013 and ND016). Results of this study indicated that globally distributed naphthalene catabolic genes are highly conserved among different bacterial species.
ESTHER : Li_2004_Gene_336_231
PubMedSearch : Li_2004_Gene_336_231
PubMedID: 15246534

Title : Genome evolution in yeasts - Dujon_2004_Nature_430_35
Author(s) : Dujon B , Sherman D , Fischer G , Durrens P , Casaregola S , Lafontaine I , De Montigny J , Marck C , Neuveglise C , Talla E , Goffard N , Frangeul L , Aigle M , Anthouard V , Babour A , Barbe V , Barnay S , Blanchin S , Beckerich JM , Beyne E , Bleykasten C , Boisrame A , Boyer J , Cattolico L , Confanioleri F , de Daruvar A , Despons L , Fabre E , Fairhead C , Ferry-Dumazet H , Groppi A , Hantraye F , Hennequin C , Jauniaux N , Joyet P , Kachouri R , Kerrest A , Koszul R , Lemaire M , Lesur I , Ma L , Muller H , Nicaud JM , Nikolski M , Oztas S , Ozier-Kalogeropoulos O , Pellenz S , Potier S , Richard GF , Straub ML , Suleau A , Swennen D , Tekaia F , Wesolowski-Louvel M , Westhof E , Wirth B , Zeniou-Meyer M , Zivanovic I , Bolotin-Fukuhara M , Thierry A , Bouchier C , Caudron B , Scarpelli C , Gaillardin C , Weissenbach J , Wincker P , Souciet JL
Ref : Nature , 430 :35 , 2004
Abstract : Identifying the mechanisms of eukaryotic genome evolution by comparative genomics is often complicated by the multiplicity of events that have taken place throughout the history of individual lineages, leaving only distorted and superimposed traces in the genome of each living organism. The hemiascomycete yeasts, with their compact genomes, similar lifestyle and distinct sexual and physiological properties, provide a unique opportunity to explore such mechanisms. We present here the complete, assembled genome sequences of four yeast species, selected to represent a broad evolutionary range within a single eukaryotic phylum, that after analysis proved to be molecularly as diverse as the entire phylum of chordates. A total of approximately 24,200 novel genes were identified, the translation products of which were classified together with Saccharomyces cerevisiae proteins into about 4,700 families, forming the basis for interspecific comparisons. Analysis of chromosome maps and genome redundancies reveal that the different yeast lineages have evolved through a marked interplay between several distinct molecular mechanisms, including tandem gene repeat formation, segmental duplication, a massive genome duplication and extensive gene loss.
ESTHER : Dujon_2004_Nature_430_35
PubMedSearch : Dujon_2004_Nature_430_35
PubMedID: 15229592
Gene_locus related to this paper: canga-apth1 , canga-ppme1 , canga-q6fik7 , canga-q6fiv5 , canga-q6fiw8 , canga-q6fj11 , canga-q6fjh6 , canga-q6fjl0 , canga-q6fjr8 , canga-q6fkj6 , canga-q6fkm9 , canga-q6fku7 , canga-q6fl14 , canga-q6flb5 , canga-q6fle9 , canga-q6flk8 , canga-q6fly1 , canga-q6fly9 , canga-q6fmz4 , canga-q6fnx4 , canga-q6fp28 , canga-q6fpa8 , canga-q6fpi6 , canga-q6fpv7 , canga-q6fpw6 , canga-q6fqj3 , canga-q6fr97 , canga-q6frt7 , canga-q6ftm9 , canga-q6ftu0 , canga-q6ftv9 , canga-q6ftz9 , canga-q6fuf8 , canga-q6fv41 , canga-q6fvu3 , canga-q6fw36 , canga-q6fw94 , canga-q6fwk6 , canga-q6fwm0 , canga-q6fxc7 , canga-q6fxd7 , debha-apth1 , debha-atg15 , debha-b5rtk1 , debha-b5rub4 , debha-b5rue8 , debha-b5rue9 , debha-bna7 , debha-ppme1 , debha-q6bgx3 , debha-q6bh69 , debha-q6bhb8 , debha-q6bhc1 , debha-q6bhd0 , debha-q6bhj7 , debha-q6bi97 , debha-q6biq7 , debha-q6bj53 , debha-q6bkd8 , debha-q6bks1 , debha-q6bky4 , debha-q6bm63 , debha-q6bmh3 , debha-q6bn89 , debha-q6bnj6 , debha-q6bp08 , debha-q6bpb4 , debha-q6bpc0 , debha-q6bpc6 , debha-q6bq10 , debha-q6bq11 , debha-q6bqd9 , debha-q6bqj6 , debha-q6br33 , debha-q6br93 , debha-q6brg1 , debha-q6brw7 , debha-q6bs23 , debha-q6bsc3 , debha-q6bsl8 , debha-q6bsx6 , debha-q6bta5 , debha-q6bty5 , debha-q6btz0 , debha-q6bu73 , debha-q6buk9 , debha-q6but7 , debha-q6bvc4 , debha-q6bvg4 , debha-q6bvg8 , debha-q6bvp4 , debha-q6bw82 , debha-q6bxr7 , debha-q6bxu9 , debha-q6bym5 , debha-q6byn7 , debha-q6bzj8 , debha-q6bzk2 , debha-q6bzm5 , klula-apth1 , klula-ppme1 , klula-q6cin9 , klula-q6ciu6 , klula-q6cj47 , klula-q6cjc8 , klula-q6cjq9 , klula-q6cjs1 , klula-q6cjv9 , klula-q6ckd7 , klula-q6ckk4 , klula-q6ckx4 , klula-q6cl20 , klula-q6clm1 , klula-q6cly8 , klula-q6clz7 , klula-q6cm48 , klula-q6cm49 , klula-q6cmt5 , klula-q6cn71 , klula-q6cnm1 , klula-q6cr74 , klula-q6cr90 , klula-q6crs0 , klula-q6crv8 , klula-q6crz9 , klula-q6cst8 , klula-q6csv8 , klula-q6ctp8 , klula-q6cu02 , klula-q6cu78 , klula-q6cu79 , klula-q6cuv3 , klula-q6cvd3 , klula-q6cw70 , klula-q6cw92 , klula-q6cwu7 , klula-q6cx84 , klula-q6cxa3 , klula-q6cy41 , yarli-apth1 , yarli-atg15 , yarli-BST1B , yarli-lip2 , yarli-LIP3 , yarli-LIP4 , yarli-LIP5 , yarli-LIP7 , yarli-LIP8 , yarli-lipa1 , yarli-ppme1 , yarli-q6bzp1 , yarli-q6bzv7 , yarli-q6c1f5 , yarli-q6c1f7 , yarli-q6c1r3 , yarli-q6c2z2 , yarli-q6c3h1 , yarli-q6c3i6 , yarli-q6c3l1 , yarli-q6c3u6 , yarli-q6c4h8 , yarli-q6c5j1 , yarli-q6c5m4 , yarli-q6c6m4 , yarli-q6c6p7 , yarli-q6c6v2 , yarli-q6c7h3 , yarli-q6c7i7 , yarli-q6c7j5 , yarli-q6c7y6 , yarli-q6c8m4 , yarli-q6c8q4 , yarli-q6c8u4 , yarli-q6c8y2 , yarli-q6c9r0 , yarli-q6c9r1 , yarli-q6c9u0 , yarli-q6c9v4 , yarli-q6c209 , yarli-q6c225 , yarli-q6c493 , yarli-q6c598 , yarli-q6c687 , yarli-q6c822 , yarli-q6cau6 , yarli-q6cax2 , yarli-q6caz1 , yarli-q6cb63 , yarli-q6cba7 , yarli-q6cbb1 , yarli-q6cbe6 , yarli-q6cby1 , yarli-q6ccr0 , yarli-q6cdg1 , yarli-q6cdi6 , yarli-q6cdv9 , yarli-q6ce37 , yarli-q6ceg0 , yarli-q6cep3 , yarli-q6cey5 , yarli-q6cf60 , yarli-q6cfp3 , yarli-q6cfx2 , yarli-q6cg13 , yarli-q6cg27 , yarli-q6cgj3 , yarli-q6chb8 , yarli-q6ci59 , yarli-q6c748 , canga-q6fpj0 , klula-q6cp11 , yarli-q6c4p0 , debha-q6btp5 , debha-kex1

Title : Genome-wide ORFeome cloning and analysis of Arabidopsis transcription factor genes - Gong_2004_Plant.Physiol_135_773
Author(s) : Gong W , Shen YP , Ma LG , Pan Y , Du YL , Wang DH , Yang JY , Hu LD , Liu XF , Dong CX , Ma L , Chen YH , Yang XY , Gao Y , Zhu D , Tan X , Mu JY , Zhang DB , Liu YL , Dinesh-Kumar SP , Li Y , Wang XP , Gu HY , Qu LJ , Bai SN , Lu YT , Li JY , Zhao JD , Zuo J , Huang H , Deng XW , Zhu YX
Ref : Plant Physiol , 135 :773 , 2004
Abstract : Here, we report our effort in generating an ORFeome collection for the Arabidopsis transcription factor (TF) genes. In total, ORFeome clones representing 1,282 Arabidopsis TF genes have been obtained in the Gateway high throughput cloning pENTR vector, including 411 genes whose annotation lack cDNA support. All the ORFeome inserts have also been mobilized into a yeast expression destination vector, with an estimated 85% rate of expressing the respective proteins. Sequence analysis of these clones revealed that 34 of them did not match with either the reported cDNAs or current predicted open-reading-frame sequences. Among those, novel alternative splicing of TF gene transcripts is responsible for the observed differences in at least five genes. However, those alternative splicing events do not appear to be differentially regulated among distinct Arabidopsis tissues examined. Lastly, expression of those TF genes in 17 distinct Arabidopsis organ types and the cultured cells was profiled using a 70-mer oligo microarray.
ESTHER : Gong_2004_Plant.Physiol_135_773
PubMedSearch : Gong_2004_Plant.Physiol_135_773
PubMedID: 15208423
Gene_locus related to this paper: arath-Q9FN74

Title : Cyclic AMP induces functional presynaptic boutons in hippocampal CA3-CA1 neuronal cultures - Ma_1999_Nat.Neurosci_2_24
Author(s) : Ma L , Zablow L , Kandel ER , Siegelbaum SA
Ref : Nat Neurosci , 2 :24 , 1999
Abstract : Long-term forms of synaptic plasticity that may underlie learning and memory have been suggested to depend on changes in the number of synapses between presynaptic and postsynaptic neurons. Here we have investigated a form of synaptic plasticity in cultures of hippocampal CA3 and CA1 neurons related to the late phase of long-term potentiation, which depends on cAMP and protein synthesis. Using the fluorescent dye FM 1-43 to label active presynaptic terminals, we find that a membrane permeable analog of cAMP enhances the number of active presynaptic terminals and that this effect requires protein synthesis.
ESTHER : Ma_1999_Nat.Neurosci_2_24
PubMedSearch : Ma_1999_Nat.Neurosci_2_24
PubMedID: 10195176

Title : [Effects of arsenic on the offspring development in mice]. [Chinese] - Ma_1994_Zhonghua.Yu.Fang.Yi.Xue.Za.Zhi_28_20
Author(s) : Ma L , Zhang C , Liu WJ
Ref : Chinese Journal of Preventive Medicine , 28 :20 , 1994
Abstract : Effects of arsenic exposure on offspring development were studied in pregnant mice. The results showed arsenic contents of the body and brain tissue increased and the structure of neural cells in cerebral cortex became abnormal after exposure. The offspring neurobehavioral development appeared retardant and the proportion of their peripheral lymphocytes with alpha-naphthalene acetate enzyme (ANAE) declined in a mice group with exposure to 0.75 mg/kg arsenic, and the offspring body weight gain slowed after weaning, blood cholinesterase activity and serum level of haemolysin declined significantly in a group with 4.50 mg/kg. It indicated arsenic could affect embryonic and offspring development in mice through pregnant exposure.
ESTHER : Ma_1994_Zhonghua.Yu.Fang.Yi.Xue.Za.Zhi_28_20
PubMedSearch : Ma_1994_Zhonghua.Yu.Fang.Yi.Xue.Za.Zhi_28_20
PubMedID: 8082454