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GLP-1类似物对糖尿病心肌病大鼠心脏组织PPAR-α、ET-1表达的影响 被引量:1

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摘要 目的探讨GLP-1类似物对PPAR-α、ET-1在糖尿病心肌病大鼠心脏组织表达的影响。方法 30只雄性SD大鼠高糖高脂饲料喂养四周后腹腔注射链脲菌素(STZ)制备糖尿病模型,随机分为糖尿病心肌病组、小剂量治疗组、大剂量治疗组。给予不同剂量的Exendin-4治疗6周后测各组血脂、血糖,同时采用HE染色法、Masson染色法观察心脏病理形态学改变。免疫组织化学法观察心脏组织PPAR-α、ET-1的表达。结果小剂量治疗组和大剂量治疗组与糖尿病心肌病组相比心肌纤维化以及血糖、血脂明显改善(P<0.05),PPAR-α表达明显上升,ET-1表达明显下降(P<0.05)。大剂量治疗组与小剂量治疗组相比,心肌纤维化、血糖、血脂、PPAR-α、ET-1的表达变化更明显。结论 GLP-1类似物对糖尿病心肌病大鼠心肌纤维化具有一定的改善作用,且具有剂量依赖性。
作者 侯敏 杨静
机构地区 山西医科大学
出处 《中国医药指南》 2012年第11期111-112,共2页 Guide of China Medicine
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