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Tohoku J Exp Med. 1998 Nov;186(3):205-13.

Effect of melatonin on cadmium-induced hepatotoxicity in male Sprague-Dawley rats.

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  • 1Department of Veterinary Medicine and ARRC, Kon-Kuk University, Seoul, Korea. eykim@mail.cc.tohoku.ac.jp

Abstract

Effect of melatonin on toxicity of cadmium (Cd) was studied in male SD rats co-administered daily Cd (1 mg/kg b.w., s.c.) with melatonin (10 mg/kg b.w., i.p.) for 15 days. Cd alone injection decreased GSH concentrations in the liver and RBC by 35% and 43% compared with those in saline-treatment group, but not in the kidney and whole brain. The activity of GSSG-reductase was significantly decreased in the liver of Cd alone injected rats, while melatonin given in combination with Cd failed to prevent the Cd-induced decreased activity of hepatic GSSG-reductase. However, the hepatic GSH concentration decreased by Cd alone was restored by melatonin treatment, and the melatonin also ameliorated Cd-induced histopathological changes in the liver. Therefore, data indicate that melatonin restores the reduction of hepatic GSH level induced with Cd regardless of GSSG-reductase activity, and suggests that melatonin may ameliorate Cd-induced hepatotoxicity.

PMID:
10348216
[PubMed - indexed for MEDLINE]
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