化瘀通络中药对糖尿病肾病大鼠肾组织CTGF mRNA表达的影响

【摘要】  　　观察化瘀通络中药—肾络通对实验性大鼠糖尿病肾病(DN)模型肾功能及肾组织结缔组织生长因子(CTGF)mRNA表达的影响。方法 SD大鼠40只随机分为正常组、模型组、对照组和中药组，模型组、对照组和中药组应用链脲佐菌素(STZ) 60 mg/kg一次性腹腔注射制备大鼠糖尿病模型。中药组给予肾络通煎剂灌胃25 g/(kg·d)，对照组给予贝那普利水溶液10 mg/(kg·d)，正常组和模型组给予等量0.9%氯化钠注射液灌胃。检测各组大鼠24 h尿蛋白、血清尿素氮(BUN)、肌酐(Cr)和肾组织CTGF mRNA的表达。结果 模型组24 h尿蛋白、BUN、Cr和肾组织CTGF mRNA的表达均显著高于正常组(P<0.01)；对照组和中药组24 h尿蛋白、BUN、Cr和肾组织CTGF mRNA的表达与模型组相比显著降低(P<0.01)。结论 化瘀通络中药能够显著减少DN模型大鼠24 h尿蛋白，保护DN模型大鼠肾脏功能，并可从基因水平显著降低肾组织CTGF的表达，提示下调CTGF的表达可能是化瘀通络中药保护DN模型大鼠肾功能的重要机制。

【关键词】  糖尿病肾病 大鼠 SD 肾功能 结缔组织生长因子

　　Effects of dispersing blood stasis and dredging collateral on expression of CTGF’s mRNA in diabetic nephropathy rats’ kidney 

　　YIN Zhiwei,GAO Junjie,CHEN Zhiqiang,et al.

　　Institute of Traditioal Chinese and Western Medicine, Hebei Medical University,Shijiazhuang，050017
   
　　【Abstract】  Objective  To observe effects of dispersing blood stasis and dredging collateral—Shenluotong on renal function and expression of CTGF mRNA in diabetic nephropathy (DN) rats’ kidney.Methods  The rats were randomly divided into four groups including normal group, model group, control group and Traditional Chinese Medicine (TCM) group. The DN model of rat was made through one-time injection of peritoneal of streptozotocin(STZ) 60 mg/kg.TCM group were intragastric administrated with Shenluotong 25 g/kg·d, Control group and the model group were intragastric administrated with benazepril 10 mg/kg·d, Normal group and model group were given equivalent physiological saline.24 hour urinary protein,Scr and BUN of different groups, and the expression of CTGF mRNA in nephridial tissue were detected.Results  In comparison with normal group,24 hour urinary protein, Scr,BUN and the expression of CTGF mRNA in nephridial tissue of model group were increased obviously (P<0.01);While in comparison with mod

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