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The aim of this study was to investigate the protective role of coenzyme Q(10) (CoQ(10), 20 mg/kg) and Vitamin E (Vit E, 20IU/kg) alone or in combination against cadmium (Cd, 0.4 mg/kg) induced lipid peroxidation and changes in antioxidant defense system in the rat testes. The obtained results showed that Cd increased lipid peroxidation in the testes, suggesting that Cd-induced oxidative stress, while CoQ(10) and Vit E treatment reversed this change to control values. Acute intoxication with Cd was followed by significantly decreased activity of antioxidant enzymes (SOD, CAT, GSH-Px, GR and GST). Vitamins C and E concentrations also significantly declined in Cd-exposed rat testes. Treatment with CoQ(10), and Vit E reversed Cd-induced alterations of antioxidant defense system and significantly prevented Cd-induced testes damage. These results suggest that both CoQic, and Vit E function as a potent antioxidant in protection of rats testes against the oxidative stress induced by Cd. (C) 2009 Elsevier Inc. All rights reserved. Ministry of Science and Technological Development of Republic of Serbia [143035B] |
