解偶联蛋白-2在大鼠非酒精性脂肪肝中的表达

Effect of Jianpishugan Decoction on hepatic lipid metabolism in rats with non-alcoholic steatohepatitis

AIM: To evaluate the efficacy of Jianpishugan Decoction in the treatment of non-alcoholic steatohepatitis (NASH) and the effect of such treatment on hepatic lipid metabolism in rats with NASH.

METHODS: Forty male rats were randomly divided into four groups: blank control group, model group, Jianpishugan Decoction group, and Essentiale treatment group. Rats of all groups except the blank control group were fed a high-fat diet for eight weeks to induce NASH. The Jianpishugan Decoction and Essentiale treatment groups were treated with Jianpishugan Decoction and Essentiale for four weeks, respectively. Hepatic histopathological changes, serum transaminase, serum lipid, liver fat, SOD, MDA, GSH-PX and the mRNA expression of SREBP-1c, SCAP, PPARa, PGC-1a and LXR in the liver were examined.

RESULTS: Compared to the model and Essentiale treatment groups, serum ALT, AST, lipids, hepatic TG, and the severity of hepatic steatosis and inflammation obviously decreased, and hepatic antioxidant levels significantly increased in the Jianpishugan group (all P < 0.05 or 0.01). Compared to the model group, the level of SREBP-1c mRNA significantly decreased and that of PPARa mRNA significantly increased in the Jianpishugan Decoction and essentiale treatment groups (all P < 0.05 or 0.01).

CONCLUSION: Jianpishugan Decoction can regulate hepatic lipid metabolism, inhibit the expression of SREBP-1c and SCAP, and up-regulate the expression of PPARa and PGC-1a in rats with NASH.

Advance in the molecular pathogenesis of nonalcoholic fatty liver disease

Nonalcoholic fatty liver disease (NAFLD) is a common liver disease and its incidence rate is increasing year by year. In this paper, we investigated and summarized the studies on the mechanisms of NAFLD in recent years, aiming at illustrating the roles of genes in NAFLD and their molecular mechanisms.