Endosulfan induced early pathological changes in vital organs of rat: a biochemical approach

To evaluate the pathogenesis in heart and liver by the early induction of biochemical and antioxidant derangements in rats exposed to endosulfan. Wistar rats were gavaged with endosulfan (0.5, 1 and 1.5 mg/kg body weight in sunflower oil) for a period of 21 days (single dose at 24 h interval). Control and sunflower oil control groups were also maintained simultaneously. Rats were sacrificed on the 22(nd) day posttreatment. Blood samples, heart and liver were collected and different biochemical parameters such as total protein, cholesterol, triglycerides, amino acids and antioxidant and lipid peroxidation level were measured. Statistical analysis was carried out by one way ANOVA, followed by Bonferroni' post-hoc test. Endosulfan induced a significant increase in the serum levels of total protein, amino acids, triglyceride, total cholesterol, free fatty acid and phospholipid levels in a dose-dependent manner. In the heart and liver, lipid peroxidation was increased significantly in a dose-dependent manner and the antioxidant levels such as superoxide dismutase (SOD), glutathione S-transferase, glutathione peroxidase, and catalase were significantly decreased in a dose-dependent pattern. Exposure to endosulfan results in a significant derangement in the biochemical parameters with a decrease in antioxidant levels in the heart and liver. This is an early indication of pathogenesis in the vital organs of rats.