Malathion Induced Alterations in the Lipid Profile and the Rate of Lipid Peroxidation in Rat Brain and Spinal Cord

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Abstract
Malathion, known as a low toxic pesticide, is frequently used in the third world. Neurotoxic manifestations of malathion were evaluated on various lipids and lipid peroxidation in different brain areas following intraperitoneal injections (150 mg/kg body weight for 7 consecutive days) to albino rats. Clinical investigations show that malathion produced hypomotor activity and hyperthermia. Lipid components were differently affected by this pesticide, where total lipids and phospholipids were diminished in the spinal cord and brain stem, respectively. Increased contents of cholesterol were found in the cerebellum and spinal cord. Also, total lipids were increased in the cerebellum. The cholesterol/phospholipids ratio was increased in the cerebellum, brain stem and spinal cord. Rate of lipid peroxidation was found to be increased in all parts of the brain following malathion intoxication.