Mello A

References (4)

Title : Soluble Epoxide Hydrolase Hepatic Deficiency Ameliorates Alcohol-Associated Liver Disease - Mello_2021_Cell.Mol.Gastroenterol.Hepatol_11_815
Author(s) : Mello A , Hsu MF , Koike S , Chu B , Cheng J , Yang J , Morisseau C , Torok NJ , Hammock BD , Haj FG
Ref : Cell Mol Gastroenterol Hepatol , 11 :815 , 2021
Abstract : BACKGROUND & AIMS: Alcohol-associated liver disease (ALD) is a significant cause of liver-related morbidity and mortality worldwide and with limited therapies. Soluble epoxide hydrolase (sEH; Ephx2) is a largely cytosolic enzyme that is highly expressed in the liver and is implicated in hepatic function, but its role in ALD is mostly unexplored. METHODS: To decipher the role of hepatic sEH in ALD, we generated mice with liver-specific sEH disruption (Alb-Cre; Ephx2(fl/fl)). Alb-Cre; Ephx2(fl/fl) and control (Ephx2(fl/fl)) mice were subjected to an ethanol challenge using the chronic plus binge model of ALD and hepatic injury, inflammation, and steatosis were evaluated under pair-fed and ethanol-fed states. In addition, we investigated the capacity of pharmacologic inhibition of sEH in the chronic plus binge mouse model. RESULTS: We observed an increase of hepatic sEH in mice upon ethanol consumption, suggesting that dysregulated hepatic sEH expression might be involved in ALD. Alb-Cre; Ephx2(fl/fl) mice presented efficient deletion of hepatic sEH with corresponding attenuation in sEH activity and alteration in the lipid epoxide/diol ratio. Consistently, hepatic sEH deficiency ameliorated ethanol-induced hepatic injury, inflammation, and steatosis. In addition, targeted metabolomics identified lipid mediators that were impacted significantly by hepatic sEH deficiency. Moreover, hepatic sEH deficiency was associated with a significant attenuation of ethanol-induced hepatic endoplasmic reticulum and oxidative stress. Notably, pharmacologic inhibition of sEH recapitulated the effects of hepatic sEH deficiency and abrogated injury, inflammation, and steatosis caused by ethanol feeding. CONCLUSIONS: These findings elucidated a role for sEH in ALD and validated a pharmacologic inhibitor of this enzyme in a preclinical mouse model as a potential therapeutic approach.
ESTHER : Mello_2021_Cell.Mol.Gastroenterol.Hepatol_11_815
PubMedSearch : Mello_2021_Cell.Mol.Gastroenterol.Hepatol_11_815
PubMedID: 33068774

Title : Purple grape juice consumption during the gestation reduces acetylcholinesterase activity and oxidative stress levels provoked by high-fat diet in hippocampus from adult female rats descendants - Proenca_2021_An.Acad.Bras.Cienc_93_e20191002
Author(s) : Proenca ICT , Goncalves LK , Schmitz F , Mello A , Funchal CS , Wyse A , Dani C
Ref : An Acad Bras Cienc , 93 :e20191002 , 2021
Abstract : The enzyme acetylcholinesterase participates in the end of cholinergic transmission and it has been shown that its activity is increased in some diseases that affect the brain, including Alzheimer disease. The objective of this study was to investigate the effect of purple grape juice consumption with or without high-fat diet in the gestational and lactation period on acetylcholinesterase activity and oxidative stress parameters in the hippocampus of female descendants. During pregnancy and lactation, 40 female Wistar rats received a control diet or a high-fat diet, with half of them receiving grape juice. After lactation, the female descendants received water and control diet in ad libitum until euthanasia on the 120 postnatal day. Hippocampus from were removed for analysis of AChE activity, protein oxidation and lipid peroxidation. It was observed that high-fat diet consumption during the pregnancy increased the AChE activity and the grape juice reduced this activity in descendants. The same was observed in protein oxidation, the descendants from high-fat diet had significantly highest values, and grape juice decreased the levels. We conclude that dietary choices during pregnancy can alter the acetylcholinesterase levels and grape juice is an important alternative to improve this function in adulthood.
ESTHER : Proenca_2021_An.Acad.Bras.Cienc_93_e20191002
PubMedSearch : Proenca_2021_An.Acad.Bras.Cienc_93_e20191002
PubMedID: 34190844

Title : Pezizomycetes genomes reveal the molecular basis of ectomycorrhizal truffle lifestyle - Murat_2018_Nat.Ecol.Evol_2_1956
Author(s) : Murat C , Payen T , Noel B , Kuo A , Morin E , Chen J , Kohler A , Krizsan K , Balestrini R , Da Silva C , Montanini B , Hainaut M , Levati E , Barry KW , Belfiori B , Cichocki N , Clum A , Dockter RB , Fauchery L , Guy J , Iotti M , Le Tacon F , Lindquist EA , Lipzen A , Malagnac F , Mello A , Molinier V , Miyauchi S , Poulain J , Riccioni C , Rubini A , Sitrit Y , Splivallo R , Traeger S , Wang M , Zifcakova L , Wipf D , Zambonelli A , Paolocci F , Nowrousian M , Ottonello S , Baldrian P , Spatafora JW , Henrissat B , Nagy LG , Aury JM , Wincker P , Grigoriev IV , Bonfante P , Martin FM
Ref : Nat Ecol Evol , 2 :1956 , 2018
Abstract : Tuberaceae is one of the most diverse lineages of symbiotic truffle-forming fungi. To understand the molecular underpinning of the ectomycorrhizal truffle lifestyle, we compared the genomes of Piedmont white truffle (Tuber magnatum), Perigord black truffle (Tuber melanosporum), Burgundy truffle (Tuber aestivum), pig truffle (Choiromyces venosus) and desert truffle (Terfezia boudieri) to saprotrophic Pezizomycetes. Reconstructed gene duplication/loss histories along a time-calibrated phylogeny of Ascomycetes revealed that Tuberaceae-specific traits may be related to a higher gene diversification rate. Genomic features in Tuber species appear to be very similar, with high transposon content, few genes coding lignocellulose-degrading enzymes, a substantial set of lineage-specific fruiting-body-upregulated genes and high expression of genes involved in volatile organic compound metabolism. Developmental and metabolic pathways expressed in ectomycorrhizae and fruiting bodies of T. magnatum and T. melanosporum are unexpectedly very similar, owing to the fact that they diverged ~100 Ma. Volatile organic compounds from pungent truffle odours are not the products of Tuber-specific gene innovations, but rely on the differential expression of an existing gene repertoire. These genomic resources will help to address fundamental questions in the evolution of the truffle lifestyle and the ecology of fungi that have been praised as food delicacies for centuries.
ESTHER : Murat_2018_Nat.Ecol.Evol_2_1956
PubMedSearch : Murat_2018_Nat.Ecol.Evol_2_1956
PubMedID: 30420746
Gene_locus related to this paper: 9pezi-a0a3n4l4q5 , 9pezi-a0a3n4lpg7

Title : Perigord black truffle genome uncovers evolutionary origins and mechanisms of symbiosis - Martin_2010_Nature_464_1033
Author(s) : Martin F , Kohler A , Murat C , Balestrini R , Coutinho PM , Jaillon O , Montanini B , Morin E , Noel B , Percudani R , Porcel B , Rubini A , Amicucci A , Amselem J , Anthouard V , Arcioni S , Artiguenave F , Aury JM , Ballario P , Bolchi A , Brenna A , Brun A , Buee M , Cantarel B , Chevalier G , Couloux A , Da Silva C , Denoeud F , Duplessis S , Ghignone S , Hilselberger B , Iotti M , Marcais B , Mello A , Miranda M , Pacioni G , Quesneville H , Riccioni C , Ruotolo R , Splivallo R , Stocchi V , Tisserant E , Viscomi AR , Zambonelli A , Zampieri E , Henrissat B , Lebrun MH , Paolocci F , Bonfante P , Ottonello S , Wincker P
Ref : Nature , 464 :1033 , 2010
Abstract : The Perigord black truffle (Tuber melanosporum Vittad.) and the Piedmont white truffle dominate today's truffle market. The hypogeous fruiting body of T. melanosporum is a gastronomic delicacy produced by an ectomycorrhizal symbiont endemic to calcareous soils in southern Europe. The worldwide demand for this truffle has fuelled intense efforts at cultivation. Identification of processes that condition and trigger fruit body and symbiosis formation, ultimately leading to efficient crop production, will be facilitated by a thorough analysis of truffle genomic traits. In the ectomycorrhizal Laccaria bicolor, the expansion of gene families may have acted as a 'symbiosis toolbox'. This feature may however reflect evolution of this particular taxon and not a general trait shared by all ectomycorrhizal species. To get a better understanding of the biology and evolution of the ectomycorrhizal symbiosis, we report here the sequence of the haploid genome of T. melanosporum, which at approximately 125 megabases is the largest and most complex fungal genome sequenced so far. This expansion results from a proliferation of transposable elements accounting for approximately 58% of the genome. In contrast, this genome only contains approximately 7,500 protein-coding genes with very rare multigene families. It lacks large sets of carbohydrate cleaving enzymes, but a few of them involved in degradation of plant cell walls are induced in symbiotic tissues. The latter feature and the upregulation of genes encoding for lipases and multicopper oxidases suggest that T. melanosporum degrades its host cell walls during colonization. Symbiosis induces an increased expression of carbohydrate and amino acid transporters in both L. bicolor and T. melanosporum, but the comparison of genomic traits in the two ectomycorrhizal fungi showed that genetic predispositions for symbiosis-'the symbiosis toolbox'-evolved along different ways in ascomycetes and basidiomycetes.
ESTHER : Martin_2010_Nature_464_1033
PubMedSearch : Martin_2010_Nature_464_1033
PubMedID: 20348908
Gene_locus related to this paper: 9pezi-d5g8f4 , 9pezi-d5gi84 , 9pezi-d5gph4 , tubmm-d5g4w2 , tubmm-d5g4w3 , tubmm-d5g4w6 , tubmm-d5g5r5 , tubmm-d5g8z4 , tubmm-d5g938 , tubmm-d5ga65 , tubmm-d5gcz1 , tubmm-d5giz0 , tubmm-d5gkr8 , tubmm-d5glm4 , tubmm-d5gnw0 , tubmm-dapb , tubmm-d5gfj1 , tubmm-d5gpf4 , tubmm-TmEst2 , tubmm-TmEst1 , tubmm-TmEst3 , 9pezi-a0a292py12 , tubmm-kex1