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银杏黄酮苷对实验性糖尿病大鼠肾脏保护作用的研究 被引量:7

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摘要 目的:探讨银杏黄酮苷对糖尿病大鼠肾脏保护作用及其机制。方法:选择雄性SD大鼠24只,随机分为三 组,每组8只,即正常对照组(N组),糖尿病组(DM组),银杏黄酮苷治疗组(DG组)。DM、DG组腹腔注射链脲佐菌素 (STZ)制模成功后,DG组给予银杏黄酮苷灌胃,10周后观察各组血糖、血浆内皮素-1(ET-1)、24h尿白蛋白排泄率、肾 重等指标。用免疫组化方法观察肾脏基质金属蛋白酶-3(MMPs-3)、纤溶酶原激活物抑制物-1(PAI-1)的表达及肾脏 的病理形态学改变。结果:与DM相比,DG组ET-1、尿白蛋白排泄率降低(P<0.05,P<0.01),肾脏肥大指数DG明显 降低(P<0.05);肾组织PAI-1表达DG组低于DM组(P<0.01),MMPs-3DG组则高于N组及DM组(P<0.01)。结 论:STZ诱导的糖尿病大鼠存在纤溶系统功能紊乱、内皮细胞受损及与之平行的尿蛋白排泄率、ET-1的增加,PAI-1表达 增强、MMPs-3表达下调。应用银杏黄酮苷干预治疗,可以降低尿白蛋白排泄率、减少内皮素释放,使PAI-1的表达下 调,MMPs-3的表达上调,对糖尿病大鼠肾脏有部分保护作用。
出处 《中国中西医结合肾病杂志》 2005年第3期160-162,共3页 Chinese Journal of Integrated Traditional and Western Nephrology
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