Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 22, Issue 2, Pages 219-224Publisher
ELSEVIER
DOI: 10.1016/j.etap.2006.03.008
Keywords
coenzyme Q(10); Vitamin E; antioxidant defense system; cadmium; heart; rats
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Our study investigated the possible protective effects of coenzyme Q(10) (CoQ(10)) and Vitamin E (Vit E) alone or in combination against cadmium (Cd) induced alterations of antioxidant defense system in the rat heart. Male Wistar rats were injected with a single dose of CdCl2 (0.4 mg Cd/kg BW i.p.), CoQ(10) (20 mg CoQ(10)/kg BW i.m.) and Vit E (20 IU Vit E/kg BW i.m.), alone or in combination. Acute intoxication of rats with Cd were followed by significantly increased activity of antioxidant defense enzymes (CuZn SOD, GSH-Px, GST and GR), while the activity of Mn SOD was decreased in the heart. The treatment with Cd significantly decreased Vit C and Vit E concentrations. Treatment with CoQ10 and Vit E reversed Cd-induced alterations of antioxidant defense system. The obtained results support the assumption that CoQ10 and Vit E functions cooperatively with endogenous antioxidants and diminished toxic effects of Cd in rat heart. (c) 2006 Elsevier B.V. All rights reserved.
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