PUBLICATION
Cypermethrin induction of DNA damage and oxidative stress in zebrafish gill cells
- Authors
- Paravani, E.V., Simoniello, M.F., Poletta, G.L., Casco, V.H.
- ID
- ZDB-PUB-190212-9
- Date
- 2019
- Source
- Ecotoxicology and environmental safety 173: 1-7 (Journal)
- Registered Authors
- Keywords
- Cypermethrin, DNA damage, Gene expression, Gill cells, Oxidative stress
- MeSH Terms
-
- Animals
- Catalase/genetics
- Catalase/metabolism
- DNA Damage/drug effects*
- Gene Expression/drug effects
- Gills/drug effects*
- Gills/metabolism
- Insecticides/toxicity*
- Oxidative Stress/drug effects*
- Pyrethrins/toxicity*
- Superoxide Dismutase/genetics
- Superoxide Dismutase/metabolism
- Water Pollutants, Chemical/toxicity*
- Zebrafish
- PubMed
- 30743075 Full text @ Ecotoxicol. Environ. Saf.
Citation
Paravani, E.V., Simoniello, M.F., Poletta, G.L., Casco, V.H. (2019) Cypermethrin induction of DNA damage and oxidative stress in zebrafish gill cells. Ecotoxicology and environmental safety. 173:1-7.
Abstract
Cypermethrin (CYP) is a synthetic pyrethroid insecticide, used to control pests in domestic, industrial and agricultural environments. According to recent reports, it is one of the most common contaminants in freshwater aquatic systems. The aim of this study was to evaluate its potential genotoxic effect and the activation of the superoxide dismutase (SOD) and catalase (CAT) systems of adult zebrafish gill cells after in vivo exposure. The comet assay (CA) demonstrated that gill cells are sensitive to DNA damage after in vitro exposure to hydrogen peroxide (H2O2), showing a dose-dependent response. We also found an increase in DNA damage of gill cells following a dose- and time-dependent treatment with CYP. Moreover, it was verified that SOD and CAT activities significantly increased after exposure to 0.6 µg/L CYP, both during six and nine days. The same treatment caused a significant up-regulation of the mRNA levels of Mn-sod and cat genes. These data indicate that CYP causes gill cell's DNA damage and oxidative stress, modifying the activities of the enzymes responsible for maintaining ROS balance, as well as in their corresponding gene expression levels.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping