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Effect of total flavones of hawthorn leafon (TFHL) on expression of UCP2 in liver of NASH rats

, : Effect of total flavones of hawthorn leafon (TFHL) on expression of UCP2 in liver of NASH rats. Zhongguo Zhong Yao Za Zhi 34(24): 3272-3276

To study the expression of uncoupling protein 2 (UCP2) in liver of rats with nonalcoholic steatohepatitis (NASH) induced by fat-rich diet, and the effect of total flavones of hawthorn leafon (TFHL) on UCP2. The NASH model of rat was induced by 12 weeks of fat-rich diet. Subsequently the rats were administrated with TFHL in accordance with 250, 125 mg x kg(-1) x d(-1) and the Essentiale N with 195.4 mg x kg(-1) x d(-1). The change of liver pathological. The levels of serum ALT and AST, the content of TG, CHOL, MDA and T-AOC activity of liver and were evaluated. The UCP2mRNA expression in liver was detected with RT-PCR, and the contents of UCP2 were examined with ELISA. There are severe steatosis, inflammatory cellular infiltration in the liver of the NASH models. The levels of serum ALT, AST and the contents of TG, CHOL, MDA and UCP2 in the model group were higher than those of in the normal groop. The expression of UCP2mRNA was obviously enhanced and the activity of T-AOC decreased. The expression of UCP2 mRNA of rats was positively correlation with the contents of MDA, TNF-alpha. The inflammation activity in rat liver, the contents of MDA and UCP2, the expression of UCP2 mRNA in the administrated groups were obviously lower than those in the model group, while the activity of T-AOC was higher than that of model. TFHL may alleviate liver injury by means of the suppression of Oxidative stress/lipid peroxidation reaction and the overexpression of UCP2 in liver, which could prevent the further development of NASH.


PMID: 20353017

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