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Marker enzyme assesment in the liver of cyprinus carpio (L.) exposed to 2,4‐D and azinphosmethyl
Author(s) -
Özcan Oruç Elif,
Üner Nevin
Publication year - 2002
Publication title -
journal of biochemical and molecular toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.526
H-Index - 58
eISSN - 1099-0461
pISSN - 1095-6670
DOI - 10.1002/jbt.10040
Subject(s) - lipid peroxidation , catalase , superoxide dismutase , chemistry , cyprinus , malondialdehyde , enzyme assay , glutathione , lactate dehydrogenase , glutathione reductase , medicine , endocrinology , antioxidant , enzyme , biochemistry , glutathione peroxidase , biology , fish <actinopterygii> , fishery
The potential utility of antioxidant enzymes and lipid peroxidation as indicators of exposure to 2,4‐D and azinphosmethyl together with the toxic effects of these compounds in freshwater fish Cyprinus carpio were evaluated. Biochemical parameters were recorded spectrophotometrically in fish liver, which were exposed to a single dose of 2,4‐D and azinphosmehtyl (1/3 LC 50 ), and their mixture at 1:1 ratio for 24, 48, 72, and 96 h. The most sensitive parameter was glutathione S‐transferase (GST) activity, which significantly increased with experimental exposures. Glucose 6‐phosphate dehydrogenase activity did not change after 24 and 48 h while there was an elevation after 72 h in all exposure groups. The activity decreased only when these were applied in combination at 96 h. Superoxide dismutase activity increased after azinphosmethyl exposure for 48 and 96 h. 2,4‐D decreased the activity after 24 h while the activity remained at the same level with control after 48 h. An elevation was found between 72 and 96 h. Mixture treatment did not changed the activity. Glutathione reductase and catalase enzyme activities, and malondialdehyde levels remained constant in all the treatment groups compared with controls. These results suggest that induction of GST activity may be used as biomarker for the assesment of water pollution in C. carpio . © 2002 Wiley Periodicals, Inc. J Biochem Mol Toxicol 16:182–188, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/jbt.10040