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Cytoprotective Effects of Taurine Against Toxicity Induced by Isoniazid and Hydrazine in Isolated Rat Hepatocytes Cover

Cytoprotective Effects of Taurine Against Toxicity Induced by Isoniazid and Hydrazine in Isolated Rat Hepatocytes

Open Access
|Jul 2013

Abstract

Isoniazid is one of the most commonly used drugs to treat tuberculosis. Its administration is associated with a high incidence of hepatotoxicity. The aim of this study was to establish the protective effects of taurine against cytotoxicity induced by isoniazid and its suspected toxic metabolite hydrazine in isolated rat hepatocytes by measuring reactive oxygen species (ROS) formation, lipid peroxidation, mitochondrial depolarisation, reduced glutathione (GSH), and oxidised glutathione (GSSG). Isoniazid caused no significant ROS formation in normal hepatocytes, but in glutathione-depleted cells it was considerable. Hydrazine caused ROS formation and lipid peroxidation in both intact and glutathione-depleted cells. Both isoniazid and hydrazine caused mitochondrial membrane depolarisation. Hydrazine lowered cellular GSH reserve and increased GSSG. Taurine (200 μmol L-1) and N-acetylcysteine (200 μmol L-1) effectively countered the toxic effects of isoniazid and/or hydrazine by decreasing ROS formation, lipid peroxidation, and mitochondrial damage. Taurine prevented depletion of GSH and lowered GSSG levels in hydrazine-treated cells. This study suggests that the protective effects of taurine against isoniazid and its intermediary metabolite hydrazine cytotoxicity in rat hepatocytes could be attributed to antioxidative action.

DOI: https://doi.org/10.2478/10004-1254-64-2013-2297 | Journal eISSN: 1848-6312 | Journal ISSN: 0004-1254
Language: English, Croatian, Slovenian
Page range: 201 - 210
Published on: Jul 2, 2013
Published by: Institute for Medical Research and Occupational Health
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2013 Reza Heidari, Hossein Babaei, Mohammad Ali Eghbal, published by Institute for Medical Research and Occupational Health
This work is licensed under the Creative Commons License.