威草胶囊对尿酸性肾病大鼠肾组织结缔组织生长因子和肝细胞生长因子的影响

目的观察威草胶囊对尿酸性肾病大鼠肾组织中结缔组织生长因子（connective tissue growth fac-tor,CTGF）和肝细胞生长因子（hepatocyte growth factor,HGF）表达的影响,探讨其对尿酸性肾病的治疗作用及其机制。方法将50只SD雄性大鼠随机分为正常对照组、模型组、别嘌呤醇组、威草胶囊小剂量组和威草胶囊大剂量组5组。用酵母和腺嘌呤合用进行模型复制,模型复制成功后分别给予9.0 g/L氯化钠注射液、别嘌呤醇和威草胶囊灌胃。治疗前及治疗4周末,分别检测各组大鼠血中尿素氮（blood urea nitro-gen,BUN）、肌酐（creatinine,Cr）、尿酸（uric acid,UA）水平,采用免疫组织化学技术检测大鼠肾组织CTGF和HGF的表达情况。采用苏木精-伊红染色观察各组大鼠肾组织的病理变化。结果与正常对照组比较,模型组血UA、BUN、Cr均明显升高（P〈0.01）,模型组肾组织中CTGF表达水平明显升高,HGF表达水平明显降低;与模型组比较,威草胶囊大、小剂量组和别嘌呤醇组大鼠血UA、BUN、Cr水平及肾组织中CTGF的表达水平明显降低（P〈0.01）,威草胶囊大、小剂量组和别嘌呤醇组肾组织中HGF的表达水平明显升高（P〈0.01）;威草胶囊大、小剂量组和别嘌呤醇组之间上述指标比较,差异均无显著性（P〉0.05）。病理检测显示,大、小剂量威草胶囊和别嘌呤醇可减轻肾间质尿酸盐结晶沉积和炎性细胞浸润,以及肾小管纤维化程度。结论威草胶囊能够改善尿酸性肾病大鼠模型的肾功能,其机制可能与其降低血尿酸,减少尿酸盐结晶在肾小管的沉积,以及减少CTGF和增加HGF在尿酸性肾病模型大鼠肾组织中的表达,阻止肾间质纤维化的发展等有关。

Effects of Weicao Capsules on Expression Levels of Connective Tissue Growth Factor and Hepatocyte Growth Factor in Renal Tissues of Uric Acid Nephropathy Rats

Objective To investigate the effects of Weicao Capsules,a traditional Chinese medicine mainly containing Radix Clematidis,Semen Cassiae,etc.,on the expression levels of connective tissue growth factor(CTGF),and hepatocyte growth factor(HGF) in renal tissues of uric acid nephropathy rats,and to explore its therapeutic effects and its mechanism of action.Methods Fifty SD male rats were randomly divided into 5 groups: normal control group,model group,allopurinol treated group,low dosage Weicao Capsules treated...