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Oxidative stress responses in zebrafish Danio rerio after subchronic exposure to atrazine
J. Blahová, L. Plhalová, M. Hostovský, L. Divišová, R. Dobšíková, I. Mikulíková, S. Stěpánová, Z. Svobodová,
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- atrazin toxicita MeSH
- biologické markery metabolismus MeSH
- chemické látky znečišťující vodu toxicita MeSH
- dánio pruhované růst a vývoj metabolismus MeSH
- glutathionperoxidasa metabolismus MeSH
- glutathionreduktasa metabolismus MeSH
- glutathiontransferasa metabolismus MeSH
- metabolická inaktivace MeSH
- mortalita MeSH
- oxidační stres účinky léků MeSH
- superoxiddismutasa metabolismus MeSH
- testy subchronické toxicity MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Atrazine is one of the most used pesticides all over the world and it is frequently detected in surface water. The aim of this study was to investigate if zebrafish exposure to atrazine could induce oxidative stress and changes in detoxifying system. Juvenile fish were exposed to sublethal concentrations of 0.3, 3, 30, or 90 μg L(-1) for 28 days. The level of oxidized lipids increased in experimental groups exposed to atrazine at 30 and 90 μg L(-1) compared to control. Activity of glutathione S-transferase decreased in group with the highest concentration compared to control. A significant decline was observed in catalase activity in all experimental groups compared to control. Activity of superoxide dismutase increased only in experimental group exposed to atrazine at 30 μg L(-1) compared to control. Activity of glutathione peroxidase and reductase (GR) increased in experimental groups exposed to atrazine at 0.3 (only for GR activity) and 90 μg L(-1) compared to control. Our results showed that atrazine exposure had profound influence on the oxidative stress markers and detoxifying enzyme of the exposed zebrafish. The changes in antioxidant enzyme activities could be an adaptive response to protect the fish from the atrazine-induced toxicity.
Citace poskytuje Crossref.org
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- $a Blahová, Jana $u Department of Veterinary Public Health and Toxicology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1/3, Brno 612 42, Czech Republic. Electronic address: blahovaj@vfu.cz.
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- $a Atrazine is one of the most used pesticides all over the world and it is frequently detected in surface water. The aim of this study was to investigate if zebrafish exposure to atrazine could induce oxidative stress and changes in detoxifying system. Juvenile fish were exposed to sublethal concentrations of 0.3, 3, 30, or 90 μg L(-1) for 28 days. The level of oxidized lipids increased in experimental groups exposed to atrazine at 30 and 90 μg L(-1) compared to control. Activity of glutathione S-transferase decreased in group with the highest concentration compared to control. A significant decline was observed in catalase activity in all experimental groups compared to control. Activity of superoxide dismutase increased only in experimental group exposed to atrazine at 30 μg L(-1) compared to control. Activity of glutathione peroxidase and reductase (GR) increased in experimental groups exposed to atrazine at 0.3 (only for GR activity) and 90 μg L(-1) compared to control. Our results showed that atrazine exposure had profound influence on the oxidative stress markers and detoxifying enzyme of the exposed zebrafish. The changes in antioxidant enzyme activities could be an adaptive response to protect the fish from the atrazine-induced toxicity.
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