羟苯磺酸钙对单侧输尿管梗阻大鼠肾间质纤维化的影响

目的:评价羟苯磺酸钙对单侧输尿管梗阻大鼠肾间质纤维化影响,并探讨其作用机制。方法:21只SD大鼠随机分为假手术组(Sham组)、肾间质纤维化组(UUO组)及羟苯磺酸钙组(CDT组),分别采用病理及免疫组织化学方法观察UUO术后14 d大鼠梗阻侧肾脏的组织学变化和MMP-9、TIMP-l表达情况。结果:与Sham组相比,UUO组大鼠肾间质纤维组织面积显著增加(P<0.01),MMP-9、TIMP-1表达均有显著增高(P<0.01)。与UUO组相比,CDT组大鼠肾间质纤维组织面积减少,MMP-9表达增强、TIMP-1表达减弱(P<0.01),UUO组和CDT组大鼠左肾MMP-9/TIMP-1与肾间质纤维化面积成负相关,且有统计学意义(P<0.01)。结论:羟苯磺酸钙可缓解输尿管梗阻导致的肾间质纤维化,其机制可能与其调节MMP-9/TIMP-1紊乱、改善基质代谢有关。

Protective Effect of Calcium Dobesilate on Renal Interstitial Fibrosis in Rats with Unilateral Ureteral Obstruction

Objective To assess the effects of calcium dobesilate on renal interstitial fibrosis in unilateral ureteral obstruction(UUO) rat model and to explore its possible mechanisms.Methods Twenty-one SD rats were randomly divided into three groups: the Sham group,the UUO group,and the calcium dobesilate treated(CDT) group.UUO model was established by ligating the left ureters of rats.Fourteen days later,renal pathological changes were analyzed by HE and Masson staining,and immunohistochemistry staining was used to...