天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (2): 277-282.doi: 10.16333/j.1001-6880.2016.2.020

• 开发研究 • 上一篇    下一篇

银杏黄酮对非酒精性脂肪肝模型小鼠的作用及NF-κB在其机制中的相关性分析

梁志清,白纪红*,赵日红,刘艳华,李丽梅,林秋香   

  1. 桂林医学院附属医院,桂林 541001
  • 出版日期:2016-02-29 发布日期:2016-03-07

Effect of Ginkgo Flavone on Nonalcoholic Fatty Liver Disease in Mice and the Correlation Analysis on NF-κB in the Action Mechanism

LIANG Zhi-qing,BAI Ji-hong*,ZHAO Ri-hong,LIU Yan-hua,LI Li-mei,LIN Qiu-xiang   

  1. Affiliated Hospital of Guilin Medical University,Guangxi Guilin 541001,China
  • Online:2016-02-29 Published:2016-03-07

摘要: 本文观察银杏黄酮对非酒精性脂肪性肝(NAFLD)模型小鼠的作用,并分析NF-κB与小鼠肝脏脂肪变性及血清丙氨酸氨基转移酶(ALT)的相关性。170只昆明小鼠随机分为正常对照组、模型组、银杏黄酮高[300 mg/(kg·d)]、中[150 mg/(kg·d)]、低[75 mg/(kg·d)]剂量组。采用高脂饲料构建非酒精性脂肪肝小鼠动物模型,分别于给药后4周、8周和12周末处死,观察肝脏病理变化,计算肝指数,检测血清总胆固醇(TC)、ALT、TNF-α以及肝组织NF-κB的表达。各剂量银杏黄酮组小鼠肝指数,血清TC、ALT和TNF-α水平,肝组织NF-κBp65的表达量比模型组显著降低,肝脏脂肪变性明显减轻(P<0.05或P<0.01);肝组织NF-κBp65相对表达量与肝脏脂肪变性程度及血清ALT含量呈正相关(r>0、P<0.01或P<0.05)。实验结果表明:银杏黄酮可降低NAFLD小鼠血脂、减轻肝脏脂肪变性、改善肝功能指标及肝脏大体形态,且有一定的剂量和时间依赖性;NF-κB上游炎症通路可能是其作用的主要机制。

关键词: 银杏黄酮, 非酒精性脂肪性肝病, 核因子-&kappa, B

Abstract: In this study,the effect of Ginkgo Flavone on nonalcoholic fatty liver disease (NAFLD) in mice was investigated,and the correlation between NF-κB and the level of hepatic steatosis or serum ALT was analyzed.170 KM mice were randomly divided into 5 groups:control group,model group,high [300 mg/(kg·d)],medium [150 mg/(kg·d)] and low [75 mg/(kg·d)] dosage of Ginkgo Flavone groups.High fat diet was used to establish the animal model.The pathological changes of liver,liver index,the serum TC,ALT,TNF-α and NF-κB in hepatic tissue were observed after 4,8 and 12 weeks of administration.Compared with the model group:the level of liver index,serum TC,ALT,TNF-α and the expression of NF-κBp65 in the Ginkgo Flavone groups were dramatically decreased.The hepatic steatosis was milder (P<0.05 or P<0.01).The correlation analysis showed that the NF-κBp65 in hepatic tissue was positively correlated with the hepatic steatosis and the serum ALT (r>0, P<0.01 or P<0.05).These results showed that Ginkgo Flavone can decrease the serum lipid and hepatic steatosis,improve the index of liver function and liver histolomorph in the time and dosage dependent manner.NF-κB related pathway might be the main mechanism of the effect.

Key words: Ginkgo Flavone;non-alcoholic fatty liver disease;nuclear factor-&kappa, B

中图分类号: 

R96