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Toxicology and Industrial Health
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research-article

Influence of alpha lipoic acid on antioxidant status in D-galactosamine-induced hepatic injury

TS Shanmugarajan

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India shanmuga5{at}yahoo.com

D Sivaraman

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India

I Somasundaram

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India

M Arunsundar

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India

E Krishnakumar

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India

R Balaji

Department of Biotechnology, Dr MGR Educational and Research Institute, Chennai, Tamilnadu, India

V Ravichandiran

Department of Pharmaceutical Biotechnology, Vel’s College of Pharmacy, Chennai, Tamilnadu, India

D-Galactosamine (GalN)-induced liver injury is associated with reactive oxygen species and oxidative stress. In the present study, we evaluated the effect of alpha lipoic acid (ALA) supplementation on acute GalN-induced oxidative liver injury. Hepatotoxicity induced by single intraperitoneal injection of GalN (500 mg/kg body wt) was evident from increase in lipid peroxidation and serum marker enzymes (asparate transaminase, alanine transaminase, alkaline phosphatase, and lactate dehydrogenase). The decreased activities of enzymic antioxidants (superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase) as well as glutathione levels were the salient features observed in GalN-induced hepatotoxicity. Pretreatment with ALA (50 mg/kg body weight for 7 days) significantly precluded these changes and prevents the hepatic injury. Hence, this study clearly exemplified that ALA might be a suitable candidate against GalN-induced cellular abnormalities.

Key Words: antioxidants • alpha lipoic acid • D-galactosamine • hepatotoxicity • oxidative stress

Toxicology and Industrial Health, Vol. 24, No. 10, 635-642 (2008)
DOI: 10.1177/0748233708101215
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