Objective:To study the protective effect of telmisartan on rats with renal failure and its mechanism.Methods:60 Wistar rats were chosen as study objective,and were divided into4 groups randomly:15 in group A(sham oper...Objective:To study the protective effect of telmisartan on rats with renal failure and its mechanism.Methods:60 Wistar rats were chosen as study objective,and were divided into4 groups randomly:15 in group A(sham operation group).15 in group B(model group),15 in group C(telmisartan group) and 15 in group D(telmisartan+GW9962 group).The difference of survival rate,blood-urine biochemical indexes,renal pathological change,and the expression level of PPAR γ and nNOS were ompared.Results:After 12 weeks,the survival rate of group A was 93.33% (14/15),that of group B was 46.67% (7/15),that of group C was86.67% (13/15),that of group D was 60.00% (9/15),and the difference among 4 groups had statistical significance(P<0.05).After 1 week,the difference of Scr,that of BUN and that of24 h protein urine among 4 groups was not statistical significant(P>0.05);after 3 weeks,6 weeks and 12 weeks,these difference was statistical significant(P<0.05).The difference of blood-urine biochemical indexes,that of renal pathological change,and that of the expression level of PPAR γ and nNOS was statistical significant(P<0.05).Conclusions:Telmisartan has protective effect on renal failure caused by 5/6 nephrectomy,which might be relative to the expression level of PPAR γ and nNOS.展开更多
目的观察复方黄甘对5/6肾切除慢性肾衰模型大鼠的疗效,并探讨其可能的作用机制。方法用HPLC检测复方黄甘提取物组分并定量;构建5/6肾切除大鼠慢性肾衰模型,将模型大鼠随机分为尿毒清组、科素亚组、复方黄甘低、中、高剂量组和模型组,另...目的观察复方黄甘对5/6肾切除慢性肾衰模型大鼠的疗效,并探讨其可能的作用机制。方法用HPLC检测复方黄甘提取物组分并定量;构建5/6肾切除大鼠慢性肾衰模型,将模型大鼠随机分为尿毒清组、科素亚组、复方黄甘低、中、高剂量组和模型组,另加假手术组共7组,每组10只大鼠,经灌胃给药12周后用全自动生化分析仪检测Scr、BUN、Ucr及24 h UPr;对残余肾组织进行HE和Masson染色观察病理变化;用RT-PCR和免疫组化检测肾组织FN、MCP-1、ICAM-1的表达。结果复方黄甘提取物中主要成分及其含量为:甘草苷(0.06%)、丹皮酚(1.06%)、芦荟大黄素(0.1%)、大黄酸(0.47%)、大黄素(0.19%)、大黄酚(0.41%)和大黄素甲醚(0.13%);复方黄甘低、中、高剂量组Scr、BUN、Ucr、Ccr及24h UPr都显著低于模型组(P<0.05);复方黄甘给药组肾小球硬化和肾间质纤维化改善较为明显,且肾组织中FN、ICAM-1 mRNA表达和蛋白表达均显著低于模型组(P<0.05)。结论复方黄甘可改善慢性肾衰模型大鼠肾功能,减轻肾小球硬化和肾间质纤维化,在一定程度上延缓慢性肾功能衰竭的进展。展开更多
基金supported by Natural Science Foundation of Shandong Province(No.ZR2009CL018)
文摘Objective:To study the protective effect of telmisartan on rats with renal failure and its mechanism.Methods:60 Wistar rats were chosen as study objective,and were divided into4 groups randomly:15 in group A(sham operation group).15 in group B(model group),15 in group C(telmisartan group) and 15 in group D(telmisartan+GW9962 group).The difference of survival rate,blood-urine biochemical indexes,renal pathological change,and the expression level of PPAR γ and nNOS were ompared.Results:After 12 weeks,the survival rate of group A was 93.33% (14/15),that of group B was 46.67% (7/15),that of group C was86.67% (13/15),that of group D was 60.00% (9/15),and the difference among 4 groups had statistical significance(P<0.05).After 1 week,the difference of Scr,that of BUN and that of24 h protein urine among 4 groups was not statistical significant(P>0.05);after 3 weeks,6 weeks and 12 weeks,these difference was statistical significant(P<0.05).The difference of blood-urine biochemical indexes,that of renal pathological change,and that of the expression level of PPAR γ and nNOS was statistical significant(P<0.05).Conclusions:Telmisartan has protective effect on renal failure caused by 5/6 nephrectomy,which might be relative to the expression level of PPAR γ and nNOS.
文摘目的观察复方黄甘对5/6肾切除慢性肾衰模型大鼠的疗效,并探讨其可能的作用机制。方法用HPLC检测复方黄甘提取物组分并定量;构建5/6肾切除大鼠慢性肾衰模型,将模型大鼠随机分为尿毒清组、科素亚组、复方黄甘低、中、高剂量组和模型组,另加假手术组共7组,每组10只大鼠,经灌胃给药12周后用全自动生化分析仪检测Scr、BUN、Ucr及24 h UPr;对残余肾组织进行HE和Masson染色观察病理变化;用RT-PCR和免疫组化检测肾组织FN、MCP-1、ICAM-1的表达。结果复方黄甘提取物中主要成分及其含量为:甘草苷(0.06%)、丹皮酚(1.06%)、芦荟大黄素(0.1%)、大黄酸(0.47%)、大黄素(0.19%)、大黄酚(0.41%)和大黄素甲醚(0.13%);复方黄甘低、中、高剂量组Scr、BUN、Ucr、Ccr及24h UPr都显著低于模型组(P<0.05);复方黄甘给药组肾小球硬化和肾间质纤维化改善较为明显,且肾组织中FN、ICAM-1 mRNA表达和蛋白表达均显著低于模型组(P<0.05)。结论复方黄甘可改善慢性肾衰模型大鼠肾功能,减轻肾小球硬化和肾间质纤维化,在一定程度上延缓慢性肾功能衰竭的进展。
