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Prevention and regression of non-alcoholic steatohepatitis (NASH) in a rat model by metabosartan, telmisartan

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The favorable metabolic effects of telmisartan have been attributed to its angiotensin II receptor blockade and action as a partial agonist of peroxisome proliferator-activated receptor (PPAR)-γ. We previously reported that administration of telmisartan markedly inhibited lipid accumulation in the liver in mice fed a high-fat diet. In the present study, we further examined the protective effect of telmisartan in a non-alcoholic steatohepatitis (NASH) model induced by feeding Wistar rats an L-methionine- and choline-deficient (MCA) diet. In the first experiment, rats were fed an MCA diet for 8 weeks with or without telmisartan (3 mg/kg/day). Liver fibrosis was observed by Masson trichrome staining, and co-treatment was shown to attenuate liver fibrosis. In the second experiment, Wistar rats were fed an MCA diet for 20 weeks, and telmisartan (3 mg/kg/day) was administered during weeks 0-20 as a preventive model or weeks 8-20 as a therapeutic model. As a result, telmisartan administration in both models significantly attenuated liver fibrosis and an increase in serum AST. Of importance, the HGF concentration in the liver was significantly increased in the telmisartan-treated group. Overall, telmisartan showed a potential action to improve NASH induced by an MCA diet, possibly due to increased HGF production through partial agonist of PPAR-γ. These favorable characteristics of telmisartan as a partial agonist of PPAR-γ may provide a benefit in the treatment of metabolic syndrome beyond its blood pressure-lowering effect.
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Document Type: Research Article

Affiliations: Department of Gene Therapy Science, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan

Publication date: October 1, 2010

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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