Dellali_2021_Environ.Sci.Pollut.Res.Int_28_18176

Reference

Title : Effects of Au\/TiO(2) metallic nanoparticles on Unio ravoisieri: assessment through an oxidative stress and toxicity biomarkers - Dellali_2021_Environ.Sci.Pollut.Res.Int_28_18176
Author(s) : Dellali M , Khallouli A , Harrath AH , Falodah F , Alwasel S , Beyrem H , Gyedu-Ababio T , Rohal-Lupher M , Boufahja F
Ref : Environ Sci Pollut Res Int , 28 :18176 , 2021
Abstract :

Several studies have been performed on the effects of nanoparticles on aquatic life. However, most of them investigated marine organisms, not freshwater organisms. This study investigated biomarker responses after exposure for 48 h and 7 days to newly made gold and titanium dioxide (Au/TiO(2)) metallic nanoparticles (MNPs) (100 and 200 microg.L(-1)) using the freshwater bivalve mussel Unio ravoisieri. Biochemical analysis of the gills and digestive glands showed induction of oxidative stress following exposure of the bivalve to Au/TiO(2) MNPs. After 2 or 7 days of exposure to Au/TiO(2) MNPs, both utilized concentrations of Au/TiO(2) MNPs induce an overproduction of H(2)O(2). Catalase and glutathione S-transferase activities and the malonedialdehyde content significantly increased in the presence of Au/TiO(2) MNPs, depending on the concentration and target organ. In contrast, acetylcholinesterase activity was significantly inhibited, indicating a discernible disturbance of the cholinergic system in the presence of Au/TiO(2) MNPs. The behavior of the freshwater mussel was altered by reducing the clearance rate. Therefore, U. ravoisieri can be used as a model species in laboratory studies to mirror the presence of MNPs, and the biomarker approach is important for detecting the effects of Au/TiO(2) MNPs. In addition, digestive gland is the target organ of Au/TiO(2)NPs contamination.

PubMedSearch : Dellali_2021_Environ.Sci.Pollut.Res.Int_28_18176
PubMedID: 33410041

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Citations formats

Dellali M, Khallouli A, Harrath AH, Falodah F, Alwasel S, Beyrem H, Gyedu-Ababio T, Rohal-Lupher M, Boufahja F (2021)
Effects of Au\/TiO(2) metallic nanoparticles on Unio ravoisieri: assessment through an oxidative stress and toxicity biomarkers
Environ Sci Pollut Res Int 28 :18176

Dellali M, Khallouli A, Harrath AH, Falodah F, Alwasel S, Beyrem H, Gyedu-Ababio T, Rohal-Lupher M, Boufahja F (2021)
Environ Sci Pollut Res Int 28 :18176