六味地黄汤对5/6肾切除大鼠NF-κB、MCP-1、Col-Ⅲ表达的影响
2016-10-24李岩岩何泽云周艳利
李岩岩,何泽云*,吴 凡,周艳利
(1.郑州市第三人民医院,河南郑州450000;2.湖南中医药大学第一附属医院,湖南长沙410007;3.广州市中医医院,广东广州510130)
六味地黄汤对5/6肾切除大鼠NF-κB、MCP-1、Col-Ⅲ表达的影响
李岩岩1,何泽云2*,吴凡1,周艳利3
(1.郑州市第三人民医院,河南郑州450000;2.湖南中医药大学第一附属医院,湖南长沙410007;3.广州市中医医院,广东广州510130)
目的观察六味地黄汤对5/6肾切除大鼠残肾转录因子-核因子κB(NF-κB)、单核细胞趋化因子(MCP-1)及Ⅲ型胶原(Col-Ⅲ)表达的影响,探讨六味地黄汤抑制肾间质纤维化进展的作用机制。方法按照随机数字表法将60只SD雄性大鼠分为5组:空白组、假手术组、模型组、依那普利组、六味地黄汤组,每组12只,后三组行5/6肾切除术诱导大鼠肾衰模型,假手术组同期手术,但不损及肾脏。造模术后3 d进行灌胃干预。灌胃8周后处死各组大鼠,观察各组大鼠残肾组织形态学变化并用免疫组化法检测大鼠残肾NF-κB、MCP-1、Col-Ⅲ的表达。结果(1)观察5/6肾切除大鼠残肾组织细胞形态学,与模型组相比六味地黄汤、依那普利组可减轻大鼠肾间质损害及纤维化程度;(2)免疫组化半定量分析显示六味地黄汤组肾皮质的NF-κB、MCP-1及Col-Ⅲ表达均明显低于模型组(P<0.05),与依那普利组差异无统计学意义(P>0.05)。结论六味地黄汤可能通过下调NF-κB、MCP-1及Col-Ⅲ的表达,减少细胞外基质的积聚,减轻炎症反应和纤维化程度,抑制5/6肾切除大鼠肾间质纤维化进展,可作为慢性肾衰竭的辅助用药。
六味地黄汤;5/6肾切除;转录因子-核因子κB;单核细胞趋化因子;Ⅲ型胶原
〔Abstract〕Objective To observe the effects of Liuwei Dihuang decoction on the expression of nuclear factor kappa B(NF-κB),monocyte chemoattractant protein-1(MCP-1)and collagen type III(Col-Ⅲ)in remnant kidney of 5/6 nephrectmized rats,and to investigate the mechanism of action for Liuwei Dihuang decoction on renal tubulointerstitial fibrosis.M ethods The sixty male Sprapue-Dewley rats were randomly divided into five groups:blank group,sham-operation group,model group,enalapril group and Liuwei Dihuang decoction group,12 rats in each group.The model group,enalapril group and Liuwei Dihuang decoction group adopted 5/6 nephrectomized induced into renal failure model.After 3 days of modeling,the rats were treated by gavage.After 8 weeks,rats were sacrificed,remnant kidney tissue morphological changes were observed and the expression of NF-kB,MCP-1,Col-Ⅲlevels were tested by immunohistochemistry.Results(1)The cell morphology in remnant kidney of 5/6 nephrectmized rats was observed.Compared with model group,renal tubulointerstitial damage and fibrosis was reduced in Liuwei Dihuang decoction and enalapril group;(2)Compared with model group,NF-κB,MCP-1 and Col-III expression level were reduced markedly in Liuwei Dihuang decoction group(P<0.05),there is no obvious diffrencebetween Liuwei Dihaung group and enalapril group(P>0.05).Conclusion Liuwei Dihuang decoction may inhibit the expression of NF-κB,reduce the expression of MCP-1,decrease the accumulation of extracellular matrix,reduce the inflammation and fibrosis and delay the progress of renal interstitial fibrosis,which can be the adjuvant drug of chronic renal failure.
〔Keywords〕Liuwei Dihuang decoction;5/6 nephrectomy;nuclear factor kappa B;monocyte chemoattractant protein-1;collagen type III
肾间质纤……
