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  • Title: Fenofibrate, a peroxisome proliferator-activated receptor alpha agonist, reduces hepatic steatosis and lipid peroxidation in fatty liver Shionogi mice with hereditary fatty liver.
    Author: Harano Y, Yasui K, Toyama T, Nakajima T, Mitsuyoshi H, Mimani M, Hirasawa T, Itoh Y, Okanoue T.
    Journal: Liver Int; 2006 Jun; 26(5):613-20. PubMed ID: 16762007.
    Abstract:
    BACKGROUND AND AIMS: The fatty liver Shionogi (FLS) mouse, a unique model for nonalcoholic fatty liver disease (NAFLD), is an inbred strain that develops spontaneous hepatic steatosis without obesity or diabetes mellitus. Peroxisome proliferator-activated receptor (PPAR) alpha controls fatty acid metabolism. In the present study, we investigated the effect of fenofibrate, a PPARalpha agonist, on hepatic steatosis in FLS mice. METHODS: Thirteen-week-old FLS mice were fed a diet with 0.1% fenofibrate (w/w) for 12 days. The degree of hepatic steatosis was estimated by histological examination and hepatic triglyceride levels. Expression levels of genes involved in fatty acid turnover, including Acox1, Cpt1a, Fabp1, Acadl, and Acadm, were determined by Northern blot analyses. We measured levels of lipid peroxidation, glutathione, and anti-oxidative enzymes, such as superoxide dismutase, catalase, and glutathione peroxidase, in the liver. RESULT: Treatment of FLS mice with fenofibrate improved hepatic steatosis by activating expression of genes involved in fatty acid turnover and decreased hepatic lipid peroxidation. Fenofibrate increased the activity of catalase by upregulating its mRNA levels. CONCLUSION: Fenofibrate, which is currently used in therapy of hyperlipidemia, might also be useful for treating patients with NAFLD even in cases where NAFLD is not associated with obesity or diabetes mellitus.
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