健肾颗粒剂对糖尿病肾病大鼠肾脏组织中ET-1mRNA表达及肾功能的影响

目的观察中药健肾颗粒剂对糖尿病肾病(DN)大鼠肾脏组织内皮素-1(ET-1)mRNA表达及肾功能的影响。方法雄性Wistar大鼠40只,采用5/6肾切除加尾静脉注射链脲佐菌素(STZ)的方法复制大鼠DN动物模型,并随机分为健肾颗粒剂、苯那普利、保肾康、病理对照4组,每组10只,另设正常对照组10只。采用生化法检测血肌酐(SCr)、尿素氮(BUN);肾脏组织标本,经染色后用光学及电子显微镜观察肾脏组织病理结构;用PCR方法检测肾脏组织中ET-1mRNA。结果健肾颗粒剂组大鼠SCr、BUN水平低于苯那普利、保肾康及病理对照组(P<0.05或P<0.01);健肾颗粒剂组肾脏组织中ET-1mRNA表达明显低于其他3组(P<0.05或P<0.01)。光镜下肾脏组织病理结构示健肾颗粒剂组,肾小球体积,球囊粘连程度,肾小球系膜细胞增生程度,系膜基质等情况均较其他3组有明显改善;而电镜下肾小球上皮细胞增生、肿胀、足突融合、低矮、扁平、以及假绒毛样变,系膜细胞增生,基质增生,毛细血管扩张、细胞堆积等病理变化也均较其他3组有明显减轻。健肾颗粒剂降低DN大鼠血糖、尿蛋白及血脂的作用明显优于苯那普利、保肾康及病理对照组(P<0.05...

Influences of Jianshen Granules on expression of ET-1-mRNA and kidney function in rats with diabetic nephropathy

Objective To observe the influences of Jianshen Granules (JG) on expression of endothelin-1-mRNA (ET-1-mRNA) and kidney function in rats with diabetic nephropathy (DN).Methods The DN model was established in 40 Wistar rats by 5/6 kidney being nephrectomized and injection of STZ through caudal vein.The rats were randomly divided into the JG group,benazepril group,Baoshenkang group and pathologic control group (each n=10),and another 10 rats were included into the normal control group.The levels of SCr and BU...