摘要
目的研究当归补血汤对糖尿病大鼠肾脏病变的保护作用及其机制。方法Wistar大鼠腹腔注射链脲佐菌素(STZ)以建立糖尿病模型,给予当归补血汤或苯那普利治疗。实验第4、8周时,观察各组肾重/体重比值、血糖、血脂、蛋白尿及肾组织结构的改变,放免法测定血浆及肾组织血管紧张素Ⅱ(AngⅡ)含量,原位杂交法检测肾皮质转化生长因子β1(TGFβ1)基因表达的变化。结果当归补血汤具有与苯那普利类似的控制肾脏肥大,防止和减轻肾功能恶化及肾脏病理改变的作用,这与AngⅡ无关,而与其抑制肾皮质TGFβ1mRNA表达有关。结论当归补血汤可抑制TGFβ1mRNA的表达,改善肾功能,延缓糖尿病肾病慢性病理进展。
AIM: To investigate the protective mechanism of Danggui Buxue Decoction(Radix Astragali,Radix Angelieae Sinensis) on the kidney of diabetic rats. METHODS: The diabetic animal model was made by a single intraperitoneal injection of 60 mg/kg streptozotocin(STZ) and treated with Danggui Buxue Decoction(DBD) or Benazepril. Renal weight/body weight ratio, blood glucose and lipid, urinary albumin and β 2-microglobin were measured. The renal pathological lesions were also investigated. The expression of TGF-β 1 mRNA in renal cortex as well as Angiotensin Ⅱ(AngⅡ) concentration of plasma and kidney tissue were determined by In situ hybridization and radioimmunoassay after 4,8 weeks of treatment. RESULTS:DBD had equivalent effects with Benazepril in protecting renal function and alleviating pathologic lesions. By means of inhibiting the expression of of TGF-β 1 mRNA. DBD had no effect on renal and plasmaAngⅡ. CONCLUSION:Danggui Buxue Decoction may alleviate kidney lesion and slow down the progression of DN by decreasing the renal expression of TGF-β 1 mRNA.
出处
《中成药》
CAS
CSCD
北大核心
2005年第1期75-78,共4页
Chinese Traditional Patent Medicine
基金
湖北省教育厅科技攻关项目(No:2002X53)
