Abstract
Organophosphate (OP) pesticides toxic manifestations have been associated with enhanced generation of reactive oxygen species (ROS) which culminates into oxidative stress (OS). Triazophos (TZ), a broad spectrum OP, was used in the present study to investigate toxic effects on liver and kidney of female albino rats at three sub-chronic dose levels of 1/10th, 1/20th and 1/40th of LD50 for 30days. Activity levels of different OS parameters viz: catalase (CAT), superoxide dismutase (SOD), glutathione-S-transferase (GST), glutathione reductase (GR), glutathione peroxidase (GPx) and lipid peroxidation (LPO) were differentially altered in liver and kidney of TZ treated rats as compared to control rats. Histomorphological studies further revealed number of abnormalities as infiltration, vacuolization, enlarged sinusoids and necrosis in liver of TZ treated rats, while renal histoarchitecture of 1/10th and 1/20th of LD50 TZ treated rats showed high degeneration of glomeruli. Enhanced apoptosis was also observed in hepatocytes at dose levels of 1/10th and 1/20th of LD50 TZ treated female rats. The results infer that exposure of female albino rats to TZ leads to number of pathophysiological conditions in the liver and kidney at dose dependent manner.
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