alexa Mechanisms of trazodone-induced cytotoxicity and the protective effects of melatonin and or taurine toward freshly isolated rat hepatocytes.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Pharmacological Reports

Author(s): Taziki S, Sattari MR, Eghbal MA

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Abstract It has been reported that the bioactive intermediate metabolites of trazodone might cause hepatotoxicity. This study was designed to investigate the exact mechanism of hepatocellular injury induced by trazodone as well as the protective effects of taurine and/or melatonin against this toxicity. Freshly isolated rat hepatocytes were used. Trazodone was cytotoxic and caused cell death with LC50 of 300 µm within 2 h. Trazodone caused an increase in reactive oxygen species (ROS) formation, malondialdehyde accumulation, depletion of intracellular reduced glutathione (GSH), rise of oxidized glutathione disulfide (GSSG), and a decrease in mitochondrial membrane potential, which confirms the role of oxidative stress in trazodone-induced cytotoxicity. Preincubation of hepatocytes with taurine prevented ROS formation, lipid peroxidation, depletion of intracellular reduced GSH, and increase of oxidized GSSG. Taurine could also protect mitochondria against trazodone-induced toxicity. Administration of melatonin reduced the toxic effects of trazodone in isolated rat hepatocytes. © 2013 Wiley Periodicals, Inc. This article was published in J Biochem Mol Toxicol and referenced in Journal of Pharmacological Reports

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