防风通圣散对非酒精性脂肪性肝病模型大鼠肝细胞水通道蛋白9表达的影响
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摘要
目的:建立非酒精性脂肪性肝病(nonalcoholic fatty liver disease,NAFLD)大鼠模型,观察防风通圣散对NAFLD大鼠血清的生化指标(AST、ALT、TG、TC)的干预作用,以及对水甘油通道蛋白9(AQP-9)表达水平的变化,探讨防风通圣散干预NAFLD可能的作用机制。方法:取成年SD雄性大鼠60只,完全随机分为5个组,正常、模型对照组;防风通圣散高、中、低剂量治疗组,每组各12只,治疗组剂量分别为16,12,6 g·kg~(-1) ig qd。正常和模型对照组予以同等剂量生理盐水。于造模第6、8、10周末,取大鼠肝脏HE染色判定造模是否成功。造模成功后,第10周后开始给予防风通圣散高、中、低剂量干预2周,然后测定AST、ALT、TG、TC,处死所有大鼠,取肝脏进行HE染色1,并检测大鼠肝脏细胞AQP-9mRNA的表达水平。结果:与正常对照组相比较,模型对照组大鼠血清AST、ALT、TG、TC指标以及肝细胞脂变程度均有明显的增高、加重(P<0.01)。与模型对照组比较,防风通圣散高、中、低剂量组大鼠血清AST、ALT、TG、TC指标降低,肝细胞脂变程度减轻,均有统计学差异(P<0.05)。中药中剂量组与高剂量组均较模型对照组AQP-9表达水平低(P<0.05)。结论:1、防风通圣散可以降低NAFLD大鼠模型中的AQP-9表达的水平;2、防风通圣散能减轻NAFLD大鼠肝细胞脂变性程度,改善肝功能,调节脂质水平;3、本实验推测通过抑制或阻断AQP-9表达可能是防风通圣散干预NAFLD的作用机制之一。
Objective: Through the establishment of nonalcoholic fatty liver disease(NAFLD) rat model, to observe Fangfeng Tongsheng Powder that effects on them, such as serum biochemical levels(AST、ALT、TG、TC)in rats, AQP-9 expression, in order to Study the effect of Fangfeng Tongsheng Powder treatment of NAFLD mechanism. Method:60 SD male rats were randomly divided into Normal control group with 12 rats, Model control group with 12 rats,Fangfeng Tongsheng Powder High dose group(16 g·kg-1), Middle dose group(12 g·kg-1),and Low dose group(6 g·kg-1)each with 12 rats. Model control group and Normal control group were given the same dose of 0.9%NS. At the end of 6,8,10 th week, we were hematoxylin-eosin staining to determine whether successful modeling. After the modeling,drugs intervened two weeks for High、Middle and Low dose group, then we observed pathological changes in liver tissue and blood biochemical parameters AST、ALT、TG、TC, and all rats were dissected at the end. The liver tissues were detected the expression of AQP-9 m RNA in rat liver. Result:In Normal control group compared with Model control group, serum AST、ALT、TG、TC level, and degree of hepatic steatosis showed significantly increased(P<0.01). In Model control group compared with Low、Middle and High dose treatment groups of Fangfeng Tongsheng Powder, the serum AST、ALT、TG、TC level, and degree of hepatic steatosis had statistically significant difference(P<0.05). Middle dose and High dose were compared with Model control group, the lower levels of AQP-9 expression than Model control group(P<0.05).Conclusion: 1、Fangfeng Tongsheng Powder can reduce the expression level of AQP-9 in NAFLD rat liver;2、Fangfeng Tongsheng Powder will reduce nonalcoholic fatty liver rats liver fatty degeneration, regulate lipid metabolism disorders, improve liver function to a certain extent;3、The experiment suggests that inhibition of the AQP-9 expression perhaps one of the mechanisms for the treatment of NAFLD.
引文
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