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Antioxidant potential of cancerous human kidney tissues.

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Antioxidant potentials (AOP) of cancerous and noncancerous adjacent human kidney tissues from 12 patients were measured. AOP of the cancerous tissues was found to be significantly lower than that of noncancerous ones. However, tissue malondialdehyde (MDA) levels were significantly higher in the cancerous tissues compared with noncancerous ones. In the intra-correlation analysis, carried out between AOP and MDA levels, significant correlation was found in the cancerous tissues (r = 0.9) but no correlation observed in the noncancerous ones. In the inter-correlation analysis, negative correlation was found between AOP's of cancerous and noncancerous tissues (r = -0.49) and positive correlation between MDA levels (r = 0.51). Results suggest that antioxidant potential of cancerous kidney tissues is significantly reduced compared with noncancerous ones. Therefore, they expose to high oxidant stress and free radical-induced peroxidative attacks, the results of which are cellular deformations.

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