【摘要】 探讨红景天、蛹虫草、大黄配伍(中药复方FF16)对高脂饮食诱导的IRF小鼠非酒精性脂肪肝的治疗作用及其作用机制。雄性C57BL/6J小鼠经mHFD诱导形成IRF小鼠模型后,给予FF16或阳性药,观察肝脏组织病理学改变并进行脂质堆积半定量评分;采用动态微循环观测系统,对肝脏微循环进行评价;采用Western Blot的方法,对肝脏胰岛素信号通路及脂代谢相关蛋白表达进行分析。结果显示,FF16具有显著降低IRF小鼠的肝脏指数,改善肝细胞脂肪变性的作用。FF16能够改善IRF小鼠肝脏微循环障碍,使红细胞流速和红细胞切变速率分别增加了62.5%,49.7%,肝窦开放数增加了70.0%,白细胞滚动数目显著减少。FF16还可显著改善IRF小鼠肝脏中胰岛素信号通路相关蛋白IRS-2、脂代谢相关蛋白HSL的异常表达。因此,中药复方FF16具有治疗IRF小鼠NAFLD的作用,其机制可能与增强肝脏胰岛素敏感性、调节肝脏脂质代谢以及改善微循环障碍相关。更多还原

【Abstract】 To investigate the effects of a compound(FF16),compatibility of Rhodiola crenulata,Cordyceps militaris,and Rhum palmatum,on non-alcoholic fatty liver disease in IRF mice induced by high fat diet.H&E stain was processed to evaluate the lipid accumulation in liver,and the dynamic microcirculation observation system was applied to determine hepatic microcirculation of IRF mice.Western blot was performed to evaluate IRS-2,HSL and ppar-αexpression in liver.The results demonstrate that FF16 significantly decreased the liver lipid index and improved liver steatosis in IRF mice.Furthermore,FF16 could ameliorate hepatic microcirculation disturbance in IRF mice through enhancing RBC velocity and shear rates by 62.5% and 49.7%,increasing sinusoids perfusion by 70.0%,inhibiting adhered leukocytes in IRF mice.The abnormal expressions of IRS-2 and HSL were both reversed by the administration of FF16.In conclusion,FF16 could improve non-alcoholic fatty liver disease in IRF mice by improving insulin sensitivity,regulating lipid metabolism and improving microcirculation disturbance.更多还原