銀杏總黃酮對NAFLD大鼠脂聯(lián)素信號通路的影響
[Abstract]:Objective to investigate the effect of total flavonoids of Ginkgo biloba on adiponectin signaling pathway in (nonalcoholic fatty liver disease,NAFLD rats. Methods 72 SPF male rats were divided into normal control group, NAFLD model group and ginkgo total flavonoid treatment group with 24 rats in each group. The body mass and liver index of each group were measured. The morphologic changes of liver were observed under light microscope. The expression of AdipoR2mRNA,PPAR 偽 mRNA in rat liver was detected by RT-PCR method. The expression of AdipoR2,PPAR 偽, AMPK protein and the phosphorylation of AMPK protein were detected by, Western blot method. Results the model of NAFLD rats was successfully established. At the end of the 4th week, compared with the normal control group, the body mass and liver index of the model group and the treatment group were increased (P0.05), the expression of AdipoR2mRNA,PPAR 偽 mRNA in the liver decreased, and the expression of AdipoR2,PPAR 偽 in the liver decreased. The expression of AMPK protein and the level of phosphorylation of AMPK protein decreased significantly (P0.05). There was no significant difference in the expression of AdipoR2mRNA,PPAR 偽 mRNA between the model group and the treatment group (P0.05), but there was no significant difference in the expression of AdipoR2,PPAR 偽, AMPK protein and the phosphorylation of AMPK protein in the liver (P0.05). At the end of the 812th week, the body mass and liver index of the model group increased gradually, while the expression of AdipoR2mRNA,PPAR 偽 mRNA, AdipoR2,PPAR 偽 and AMPK protein and the phosphorylation of AMPK protein decreased gradually in the liver of the model group. In the treatment group, the body mass and liver index were close to the normal control group, the expression of AdipoR2mRNA,PPAR 偽 mRNA in the liver increased (P0.05), the expression of AdipoR2,PPAR 偽, AMPK protein and the phosphorylation of AMPK protein increased gradually (P0.05). Conclusion Total flavonoids of Ginkgo biloba can control the body mass and liver index of rats, increase the expression of AdipoR2mRNA,PPAR 偽 mRNA, AdipoR2,PPAR 偽 and AMPK protein, and increase the phosphorylation level of AMPK protein. It is speculated that the total flavonoids of Ginkgo biloba may reduce the abnormal apoptosis of hepatocytes by enhancing the activity of adiponectin signaling pathway on the one hand and promote the oxidation of fatty acids in mitochondria on the other hand thereby alleviate the liver injury of NAFLD and prevent the progress of NAFLD.
【作者單位】: 武漢市第一醫(yī)院消化內科;
【基金】:武漢市衛(wèi)生計生委臨床醫(yī)學科研資助項目(No.2014-92-WX14C05)
【分類號】:R575
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