Effect of trichlorfon on oxidative stress and hepatocyte apoptosis of Carassius auratus gibelio in vivo

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Abstract
To investigate the effect of trichlorfon on oxidative stress and hepatocyte apoptosis of Carassius auratus gibelio in vivo, the fish were exposed to 0, 0.5, 1.0, 2.0 and 4.0 mg l−1 trichlorfon concentrations for 30 days. At the end of the experiment, plasm antioxidant activities, hepatic total nitric oxide synthase (T-NOS) activity, xanthine oxidase (XOD) activity and hepatocyte apoptosis rate were analyzed. The results showed hepatic T-NOS activities, XOD activities and hepatocyte apoptosis rate were increased with trichlorfon concentration increase. The hepatic MDA content was increased significantly at 4.0 mg l−1 trichlorfon treatment. The disturbance of antioxidative balance was observed based on the monitoring of the plasm superoxide dismutase (SOD), catalase (CAT) activities and vitamin E levels. The current study revealed that trichlorfon influenced fish plasma antioxidative status, caused lipid peroxidation (LPO) then resulted in hepatocytes apoptosis.

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