【作者】 高淑清；

【导师】 张佩青；

【作者基本信息】 黑龙江省中医研究院 ， 中医内科学， 2010， 硕士

【摘要】 目的:探讨肾炎消白颗粒减少阿霉素肾病大鼠蛋白尿的作用,并从生化、分子生物学角度探讨其作用机理,为临床应用进一步提供理论依据。方法:60只Wistar大鼠,随机分为5组,分别为空白对照组、模型对照组、洛汀新组、肾炎消白颗粒低剂量组、肾炎消白颗粒高剂量组,用尾静脉一次性注射阿霉素制备肾炎蛋白尿模型,而后各组以预定方法灌胃,观察7周,于每周一检测大鼠的尿肌酐,酶联免疫法检测尿白蛋白,第七周末检测血清白蛋白,免疫组织化学法检测大鼠肾组织中Podocin蛋白表达情况。结果:实验7周末各治疗组(肾炎消白颗粒高、低剂量组及洛汀新组)阿霉素肾病大鼠尿白蛋白/尿肌酐值下降,以肾炎消白颗粒高剂量组最为明显(P<0.05);血清白蛋白含量上升,以肾炎消白颗粒高剂量组最为明显(P<0.05);Podocin蛋白在肾组织中的表达增加,以肾炎消白颗粒高剂量组最好,中药高剂量组对上述作用均优于中药低剂量组、洛汀新组。结论:肾炎消白颗粒能够在一定程度上减少阿霉素肾病大鼠尿蛋白的排泄量;提高阿霉素肾病大鼠血清白蛋白的含量,其机制可能是减少尿中蛋白排泄量;改善阿霉素肾病大鼠足细胞的形态,增加阿霉素肾病大鼠肾组织中Podocin蛋白表达,对于受损足细胞有修复作用,从而减少尿蛋白的排泄量。更多还原

【Abstract】 Objective:To test if nephritis Xiaobaikeli decreases proteinuria level in experimental animals and investigate its mechanism by biochemical and molecular biological analysis to provide the basis for its clinical application.Methods:We utilized a rat model in which nephritis is induced by one-time tail vein injection of doxorubicin.Animals were divided into five groups,namely the naive control group,model control group,Lotensin group,low-dose nephritis Xiaobaikeli group and high-dose nephritis Xiaobaikeli group.Seven weeks after treatment,we detected rat urine creatinine,proteinuria,Enzyme immunosorbent method to detect urinary albumin and Using immunohistochemistry in kidney tissues Podocin detection of expression.Results:At the end of 7-week observation,the ratio of proteinuria/urine creatinine values(P<0.05)were reduced in animals from all treatment group with doxorubicin-induced nephritis , and the high-dose nephritis Xiaobaikeli treatment had the most significant effects(P<O.05.);and the high-dose nephritis Xiaobaikeli treatment had the most significant effects (P<O . 05) ; the serum albumin concentration(P<0. 05)was increased in all treatment group; and high-dose nephritis Xiaobaikeli treatment had the most significant effects (P<0.05);and the high-dose nephritis Xiaobaikeli treatment had the most significant effects (P<0.05);the treatment by nephritis Xiaobaikeli did not affect the kidney function in rats with nephritis(P>0 . 05) ; and the high—dose nephritis Xiaobaikeli treatment had the most significant effects (P<O.05);all animals in the treatment group had attenuated foot cell damage,lower Podocin mRNA and expression in kidney tissues,and the high.dose nephritis Xiaobaikeli treatment had the most significant effects(P<0.05). Conclusion:nephritis Xiaobaikeli can reduce excretion a certain extent, in nephrotic rats and protect tubulo: It can possibly increase serum albumin level by reducing excretion;SO it can treat kidney fibrosis;It can improve the foot cell morphology of nephrotic rats,by which it reduced excretion;It can reduce Podocin mRNA and expression in kidney tissues from rats with doxorubicin.Induced nephritis,repair injured foot cell,then.reduce excretion.The therapeutic effects with high-dose nephritis Xiaobaikeli are better than low-dose nephritis Xiaobaikeli or Lotensin.更多还原