For malondialdehyde (MDA) level, the kidney tissues were homogenized in 0.15 M potassium chloride solution and supernatant had been deproteinized. Then, the samples have been treated with thiobarbituric acid for color formation. Absorbances were measured at 535 nm by spectrophotometry and the results were calculated as nmol/g tissue . For superoxide dismutase (SOD) activity, the renal tissues were homogenized in physiological saline; supernatant was measured after the centrifugation. Results were calculated as unit/g tissue, assuming 50% inhibition of activity as one unit enzyme activity . For determination of Nitric oxide (NO) levels, renal tissues were homogenized in a buffer; then deproteinized by centrifugation and NO was studied from supernatant. Results were calculated as mol/g of tissue . uyvonne vera, umbhali wamanoveli ongasekho owaziwa umhlaba wonke, kanye noprof welshman ncube, uprofesa wezomthetho kanye nosopolitiki ovelele ophikisayo, nabo bangabafundi. unoviolet bulawayo, umbhali wamanoveli odumile, naye ubekhona kulesi sikole." string elawulwa imibala e--4 yokuguqula umbala. ihazel, blue, pink, purple.