Mutual anti-oxidative effect of gossypol acetic acid and gossypol–iron complex on hepatic lipid peroxidation in male rats

Add time:08/11/2019    Source:sciencedirect.com

Gossypol displays anticancer behavior and anti-fertility in males. Male rats were treated with either gossypol acetic acid (GAA) or gossypol–iron complex (GIC). Serum alanine transaminase (ALT) activity elevated of GAA. However, GIC-treated animals showed a decrease in hepatic glutathione (GSH) content with increased malondialdehyde (MDA) content. Whereas, GSH-Px specific activity increased in GAA group. GAA and GIC induce significant increases in the hepatic NEFA with remarkable decrease in the total saturated fatty acids with a significant increase of PUFA.Lipid peroxidation is inhibited by gossypol, which shield lipids against oxidative damage. Phenols are oxidized to phenoxy radicals, which do not permit anti-oxidation due to resonance stabilization. GAA stimulate hydroxyl radicals (OH) generation and DNA damage. GAA and GIC produce increase in lipid peroxidation as proved by a steep rise in thiobarbituric acid reactive species (TBARS). Controversy of specificity of TBARS towards compounds other than MDA was reported. If TBARS increased, more specific assay to be employed. Assay of lipid classes and fatty acids pattern, reveled the significance of the technique in assessment of lipid peroxidation in tissues. GAA and GIC were powerful inhibitors of lipid peroxidation and exhibit pro- and antioxidant behavior, with less toxicity of GIC.

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