Journal
TOXICOLOGY
Volume 208, Issue 3, Pages 367-375Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.tox.2004.11.039
Keywords
DNA fragmentation; free radicals; intracellular calcium; hepatotoxicity; diethldithiocarbamate; diclofenac; ketoconazol
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Sodium diethyldithiocarbamate, diclofenac and ketoconazol are three important chemotherapeutic agents that are commonly associated with hepatotoxicity. This study was undertaken to provide a better understanding of the mechanism through which these drugs induce hepatotoxicity. Some of the possible mechanisms underlying such modulation were investigated. The hepatotoxic activity of sodium diethyldithiocarbamate (800 mg kg(-1)); diclofenac (200 mg kg(-1) 1) and ketoconazol (100 mg kg-1) were investigated in vivo through the assessment of liver functions, lipid peroxidation and histopathological examination. It was found that all drugs have induced severe hepatic damage as evidenced by the elevation serum aminotransferase activities and confirmed by histological changes of liver. In addition, the drug-induced hepatotoxicity was also associated with massive liver DNA fragmentation and an increase in lipid peroxidation. These results strongly suggest a positive correlation between hepatotoxicity and DNA fragmentation. Moreover, this study also implicates calcium as a potential mediator of the drug-induced oxidative stress associated with hepatotoxicity. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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