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·消糖胶囊对糖尿病大鼠肾脏的保护作用· 消糖胶囊对糖尿病大鼠肾脏的保护作用

消糖胶囊对糖尿病大鼠肾脏的保护作用

作者:王磊,王宗仁,谢娟,马静,张珊红 
【关键词】  糖尿病;糖尿病肾病;肾功能;尿蛋白;消糖胶囊;开博通
  Protective effect of Xiao Tang Capsule on kidney of diabetic rats
  【Abstract】 AIM: To observe the protective effect of Xiao Tang Capsule (XTC) on the kidney of the diabetic rats. METHODS: Unilatetal nephrectomy and tetraoxypyrimidine injection were employed to establish the diabetic rat models, which were randomly divided into control group [distilled water 10 mL/(kg・d)], Captopril group [2.5 mg/(kg・d)], high [3.81 g/(kg・d)], middle [2.54 g/(kg・d)] and low [1.27 g/(kg・d)] dose groups of XTC. After intragastric administration for 4 weeks, we determined their effects on the weight of kidney, renal function and the excretion quantity of urinary albumin. RESULTS: The weight of kidney to body weight, urea nitrogen, creatinine and the excretion quantity of urinary albumin in the high, middle and low dose XTC groups were significantly lower than those in the control group (P<0.05). However, compared with Captopri group, there was no significant difference. CONCLUSION: XTC can inhibit the hypertrophy of kidney, reduce the excretion of urine protein, and result in improving the kidney function.
  【Keywords】 diabetes mellitus; diabetic nephropathy; kidney function; urine protein; Xiao Tang Capsule (XTC);Captopril
  【摘要】 目的:观察消糖胶囊对糖尿病大鼠肾脏的保护作用. 方法:采用单侧肾脏切除加四氧嘧啶注射的方法制备大鼠糖尿病模型,将实验大鼠随机分为正常组[蒸馏水10 mL/(kg・d)],模型组[蒸馏水10 mL/(kg・d)],开博通组[2.5 mg/(kg・d)],消糖胶囊大[3.81 g/(kg・d)]、中[2.54 g/(kg・d)]、小[1.27 g/(kg・d)]剂量组,每组10只. 灌胃给药4 wk后,分别测定实验大鼠肾质量、肾功及尿白蛋白排泄量. 结果:消糖胶囊大、中、小剂量组肾质量、肾质量/体质量比值、尿素氮、肌酐、尿蛋白排泄量均显著低于模型组(P<0.05),与开博通组比较,各项指标差异无统计学差异. 结论:消糖胶囊具有抑制肾脏肥大、减少尿蛋白分泌,改善肾功能的作用.
  【关键词】 糖尿病;糖尿病肾病;肾功能;尿蛋白;消糖胶囊;开博通
  【中图号】 R587.1
  0引言
  糖尿病肾病(diabetic nephropathy,DN)是糖尿病(diabetes mellitus, DM)的并发症之一,而控制血糖是防治其发病的有效措施. 我们采用益气养阴、生津润燥、活血化瘀法研制的复方中药制剂消糖胶囊,在控制2型糖尿病患者血糖、血脂及血液流变学方面均显示出较好疗效[1]. 肾脏高灌注、高压力是DN发生发展的重要机制. 我们旨在探讨消糖胶囊对DM大鼠肾脏的保护作用.
  1材料和方法
  1.1材料雄性SD大鼠80只,体质量(190±10)g(第四军医大学实验动物中心). 消糖胶囊由黄芪、当归、黄精、北沙参、玉竹、天花粉、丹参、麦冬、菟丝子、桂枝等组成,提取浸膏干粉,1 g干粉相当于3.168 g生药(西京医院提供). 四氧嘧啶(alloxan,ALX)(Sigma公司);开博通(上海施贵宝制药有限公司产品);尿微量白蛋白免疫试剂盒(北京科美东雅生物技术有限公司);7600021型全自动生化仪;SN682放射免疫γ计数器.
  1.2方法将80只大鼠行左肾切除后,随机抽取10只作为对照组,余按参考文献[2]改良制备1型DM大鼠模型,以血糖16.7~25 mmol/L、尿糖阳性、尿量大于对照组尿量50%者为模型制备成功. 从造模成功大鼠中,随机选取50只,将这50只大鼠随机分为模型组,给予蒸馏水10 mL/(kg・d);开博通组2.5 mg/(kg・d)(按成人临床剂量的15倍计算);消糖胶囊大、中、小剂量组,剂量分别为3.81,2.54,1.27 g/(kgӥ

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