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  • Title: Effect of chronic exposure to prometryne on oxidative stress and antioxidant response in early life stages of common carp (Cyprinus carpio L.).
    Author: Stara A, Machova J, Velisek J.
    Journal: Neuro Endocrinol Lett; 2012; 33 Suppl 3():130-5. PubMed ID: 23353856.
    Abstract:
    OBJECTIVES: The aim of the study was to investigate effects of the triazine herbicide prometryne on early life stages of common carp Cyprinus carpio as indicated by oxidative stress and antioxidant indices. DESIGN: Toxicity tests were performed according to OECD 210 methodologies. Common carp larvae and embryos exposed for 35 days to prometryne at three concentrations, 0.51 (reported concentration in Czech rivers), 80 (1% 96 h LC50), and 1200 (15% 96 h LC50) μg/l, were compared to carp in a non-treated control group. Activity of superoxide dismutase (SOD), catalase (CAT), and glutathione reductase (GR), as well as levels of thiobarbituric acid reactive substances (TBARS) were assessed. RESULTS: Chronic exposure of early life stages of carp to prometryne showed no effect on growth and mortality rates. Levels of oxidative damage in fish test groups showed no significant differences from the controls. Glutathione reductase activity at exposure 0.51 μg/l was significantly increase (p<0.01) compared with controls and other exposures. CONCLUSION: The chronic exposure to prometryne showed no influence on oxidative stress. Differences from control fish was observed in GR activity in exposure prometryne 0.51 μg/l.
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