alexa Role of vitamin E in mitigating methomyl induced acute toxicity in blood of male Wistar rats.


Journal of Clinical & Experimental Pathology

Author(s): Garg DP, Kiran R, Bansal AK, Malhotra A, Dhawan DK

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Abstract The present study was designed to evaluate the protective potential of vitamin E, if any, in attenuating the toxic effects induced by acute methomyl treatment in rats. Male Wistar rats, weighing between 230 and 250 g, received either a single oral dose of 9 mg/kg of methomyl, vitamin E alone injected intraperitoneally on alternate days (4 injections) at 50 mg/kg body for 1 week prior to methomyl treatment, or both methomyl plus vitamin E given in a similar manner. The effects of different treatments were studied on lipid peroxidation (LPO), reduced glutathione (GSH) and antioxidant enzymes, which included superoxide dismutase (SOD), glutathione-s-transferase (GST), glutathione reductase (GR), glutathione peroxidase (GSHPx) and catalase and various hematological parameters, including total leucocytes count (TLC), differential leukocyte count (DLC), hemoglobin, platelets counts, red cell counts, and scanning electron microscopy (SEM). Acute 24-h treatment to rats resulted in a significant increase in the LPO. GSH levels and the activities of catalase, GST, and GSHPx were found to be significantly decreased following methomyl treatment. A significant elevation in the activity of SOD and in TLC was also observed after 24 h of methomyl treatment. Further, a significant increase in the neutrophils and eosinophil counts was also observed. However, lymphocytes showed a significant decrease following methomyl treatment. SEMs showed significant morphological changes following methomyl treatment. Vitamin E pretreatment to methomyl-treated rats effectively normalized the levels of LPO and GSH. Vitamin E could also significantly elevate the activity of catalase, increase platelets counts and TLC, and normalized the activities of SOD and GSHPx. Vitamin E pretreatment improved the morphology of the red blood cells. The study concludes that vitamin E affords protection in methomyl-induced toxicity in the rat. This article was published in Drug Chem Toxicol and referenced in Journal of Clinical & Experimental Pathology

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