【作者】 马拯华；

【导师】 董正华；

【作者基本信息】 陕西中医学院 ， 中医临床基础， 2008， 硕士

【摘要】 目的通过观察“通络益肾滋阴方”对糖尿病肾病(DN)模型大鼠一般情况,空腹血糖,肾脏肥大指数,24小时尿蛋白定量,肾功能(血清尿素氮、肌酐),血清TGF-β1、HGF含量的影响,以证实通络益肾滋阴方对DN大鼠的治疗效果,并从抗肾纤维化角度探讨其作用机理。方法在50只健康雄性SD大鼠中随机选取8只作为假手术对照组(简称正常对照组);其余42只行左侧肾脏切除术+STZ腹腔注射诱导复制DN模型。将36只成模大鼠随机分为3组,即病理模型对照组(简称病理对照组),通络益肾滋阴方治疗组(简称中药治疗组),洛汀新+糖适平治疗组(简称西药治疗组),分别灌胃给药10周。共观察12周,12周末检测24h小时尿蛋白定量,空腹血糖,肾功能(血清尿素氮、血肌酐),测定血清TGF-β1、HGF含量,并称重计算肾脏肥大指数(肾重/体重),光镜观察肾脏病理变化。结果经通络益肾滋阴方治疗10周后,大鼠体重较病理对照组明显增加,P<0.05;空腹血糖、肾肥大指数均较病理对照组明显降低,P<0.01;24h尿蛋白定量、血清尿素氮、肌酐均较病理对照组明显减低,P<0.01;肾组织病理损伤明显减轻;大鼠血清TGF-β1表达较病理对照组显著下调,HGF表达增加,P<0.01。结论通络益肾滋阴方对DN模型大鼠具有一定的治疗作用,其机制可能是通过降低空腹血糖,减少24h尿蛋白,抑制实验性DN大鼠血清中致纤维化因子TGF-β1的表达,延缓肾脏保护因子HGF的下降,促进HGF表达来抑制细胞外基质的积聚,从而保护肾功能,防止肾组织纤维化。更多还原

【Abstract】 ObjectiveThrough observing the effect of Tongluoyishenziyinfang (TLYSZYF) on the general things, fasting blood glucose, kidney weight, index of kidney hypertrophy (kidney weight/body weight), kidney function(serum creatinine, blood urea nitrogen),the urine micro-albumin protein in 24hours (24hmAlb),expression of the serum Transforming Growth Factor-β1(TGF-β1) and Hepatocyte Growth Factor (HGF)of the DN model big rat. To validate the curative effect and investigate acting mechanism of TLYSZYF for diabetic nephropathy(DN) from the aspect of anti-fibrosis.Methods8 rats were selected for sham-operation group randomly in the fifty clean healthy male Sprague-Dawley rats, brief named normal control group. Others were had left kidney nephrectomy and intraperitoneal injected the streptonzocin (STZ) to induced diabetic nephropathy. Thirty-six diabetic nephropathy model rats were randomly divided into: pathology group, TLYSZYF group (brief named Chinese medicine group),Lostensin+Gliguidone group(brief named western medicine group).Cured for 10 weeks, This experimental altogether 12 weeks, after 12 weeks, we measured 24hmAlb,tested the fasting blood glucose, examined the blood urea nitrogen (BUN),serum creatinine(Scr),measured the expression of the serum Transforming Growth Factor-β1(TGF-β1) and Hepatocyte Growth Factor(HGF),the left kidneys were harvested to weight, calculated index of kidney hypertrophy, observe the renal pathological changes.ResultsAfter treatment of TLYSZYF, the avoirdupois of mouse was increased compared with pathology group (P<0.05);the fasting blood glucose,24hmAlb,Scr,BUN and index of kidney hypertrophy were reduced compared with pathology group (P<0.01),and renal damage eased, the expression level of the serum Transforming Growth Factor-β1 (TGF-β1) was lower, and Hepatocyte Growth Factor(HGF) was higher(P<0.01).ConclusionTLYSZYF can protect the kidney of diabetic nephropathy(DN) rats, The probable mechanism was to lower the fasting blood glucose,24hmAlb,suppress the expression of TGF-β1 in big mouse blood serum which cell factor can causes the fibrosis, delay kidney protection factor of HGF dropping and promote the expression of HGF, so TLYSZYF can decrease glomeruli extracellular matrix ingredient depositing, delay the thickening basal lamina of glomeruli and delay the process of DN.更多还原