Objective:To preliminarily discuss the mechanism of Salvia miltiorrhiza and Rrhizoma alismatis in the prevention and treatment of lipid metabolism through regulating the imbalance of fibrinolytic system in rats with non-alcoholic fatty liver. Methods:The model of non-alcoholic fatty liver in rats was duplicated by high-fat diet feeding. Totally 60 adult Wistar rats were randomly divided into 6 groups (n=10 per group), namely the control group, the model group, Salvia miltiorrhiza group, Rrhizoma alismatis group, Salvia miltiorrhiza and Rrhizoma alismatis group,and Dongbaogantai group. The control group and the model group were given distilled water,and the other group was given Salvia miltiorrhiza,Rrhizoma alismatis,Salvia miltiorrhiza combined with Rrhizoma alismatis and Dongbaogantai,respectively. Rhizoma Alismatis decoction at high dose and low dose as well as Dongbaogantai was respectively adminis-trated in the designed groups,and the corresponding indices were detected 4 weeks later. Results:In the model control group,the con-tents of TC、TG、FFA in serum and the expression of PAI-1 were significantly elevated(P<0.05 or P<0.01),while the expression of t-PA was significantly reduced(P<0.01).After treatment,the contents of TC、TG、FFA in serum and the expression of PAI-1 in every treatment groups were reduced(P<0.01),while the expression of t-PA was elevated(P<0.01).Conclusion: Increasing the expres-sion of t-PA and reducing the expression of PAI-1 might be viewed as the mechanisms of Salvia miltiorrhiza and Rrhizoma alismatis in the prevention and treatment of non-alcoholic fatty liver disease.

目的 通过观察泽泻汤加味方对高脂血症大鼠胃黏膜水通道蛋白(AQP)4蛋白表达的影响.方法 将60只健康SD大鼠随机分为空白组、模型组、辛伐他汀对照组和泽泻汤加味方高、中、低剂量组,每组10只,造模的同时给予相应药物治疗.第5周末检测血清中三酰甘油(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)的含量,观察肝组织形态学变化,并运用免疫组化及Western印迹法检测大鼠胃黏膜中AQP4蛋白的表达变化.结果 模型组TG、TC、LDL-C含量显著升高、胃黏膜AQP4表达显著增强(P<0.01),HDL-C含量显著降低(P<0.01或P<0.05),各用药组大鼠血清中TG、TC、LDL-C含量显著降低、胃黏膜AQP4的表达显著减弱,HDL-C含量显著升高(P<0.01或P<0.05).结论 泽泻汤加味方具有良好的调节血脂作用,可能是通过下调胃黏膜AQP4蛋白的表达调节水液代谢,抑制水湿停聚,祛除痰浊.

Objective:to study the effect of supplemented formula of Alisma decoction on Aquaporin-3(AQP3) expression in gas-tric mucosa of hyperlipidemia rats,and to explore the mechanism of prevention and treatment of hyperlipidemia. Methods:60 healthy SD rats were randomly divided into blank group, model group, Simvastatin control group (short for control group), and high dose, middle and low dose group of Alisma decoction. At the end of the fifth week,triglyceride(TG),total cholesterol(TC),high density lipoprotein (HDL-C),low density lipoprotein (LDL-C) levels and liver histological changes in rat serum were observed and the ex-pression of AQP3 protein was detected in rat gastric mucosa by immunohistochemistry and Western Blot method. Results: TG, TC, LDL-C levels of model group increased and AQP3 expression of gastric mucosa was enhanced( P <0.01),the content of HDL-C de-creased( P < 0.01 or P < 0.05);of the medication groups, TG, TC, LDL-C levels decreased, AQP3 expression decreased, and HDL-C increased( P < 0.01 or P < 0.05).Conclusion:Supplemented formula of Alisma decoction has the effect of regulating blood lipid. It may be one of the mechanisms of preventing and treating hyperlipidemia by reducing the expression of AQP3 in gastric muco-sa,regulating the metabolism of water and eliminating the pathological factors of phlegm turbidity.

目的:通过研究泽泻汤加味方对高脂血癌大鼠肝细胞水甘油通道蛋白9(AQP9)表达的影响,探讨其防治高脂血症的作用机制.方法:将60只健康雄性SD大鼠随机分为正常组、模型组、辛伐他汀1.89mg/kg组和泽泻汤加味方7.39、14.78、29.56g/kg组,采用喂饲高脂饲料的方法复制高脂血症模型,造模的同时给予相应药物治疗.治疗5周后检测大鼠血清中TG、TC、HDL-C、LDL-C的含量、观察肝组织形态学变化,并运用RT-PCR及Western Blot法检测肝细胞AQP9基因、蛋白的表达变化.结果:模型组大鼠血清中TG、TC、LDL-C的含量及肝细胞中AQP9表达升高,HDL-C含量显著降低,肝组织出现脂肪变性;泽泻汤加味方29.56g/kg、14.78g/kg、7.39g/kg组和辛伐他汀1.89mg/kg组大鼠血脂中TG、TC、LDL-C的含量及肝细胞AQP9的表达均显著降低,HDL-C含量显著升高,肝组织的形态结构亦趋于正常.结论:泽泻汤加味方具有较好的调节血脂作用,推测该方通过下调肝细胞AQP9的表达、抑制甘油的渗透、减少TG的合成,是防治高脂血症的作用机制之一.