桂枝汤对自发性糖尿病大鼠心肌胶原重构的影响

China Journal of Traditional Chinese Medicine and Pharmacy(2009)

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Abstract
目的:进一步桂枝汤对自发性糖尿病(GK)大鼠心肌Ⅰ型胶原、Ⅲ型胶原、血管紧张素Ⅱ的影响,为糖尿病心肌病变防治提供新治法新思路。方法:GK大鼠40只,随机分为GK对照组、二甲双胍组、桂枝汤组、黄连解毒汤组,分别灌胃12周,测定各组血糖、酶免法测定Ⅰ型胶原、Ⅲ型胶原,计算胶原Ⅰ/Ⅲ比值,放免法测定血管紧张素Ⅱ。结果:黄连解毒汤组、二甲双胍组血糖下降;桂枝汤组与GK对照组、二甲双胍比较,胶原Ⅰ明显下降,胶原Ⅲ明显升高,胶原Ⅰ/Ⅲ比值明显下降;桂枝汤组、黄连解毒汤与GK对照组、二甲双胍比较,心肌匀浆AT-Ⅱ含量均有下降。结论:桂枝汤能降低GK大鼠心肌匀浆胶原Ⅰ、AT-Ⅱ含量、升高胶原Ⅲ含量,降低胶原Ⅰ/Ⅲ比值,可明显防治GK大鼠心肌胶原重构和心肌纤维化。黄连解毒汤可降低AT-Ⅱ含量、对胶原Ⅰ、胶原Ⅰ/Ⅲ比值有降低趋势,对心肌胶原重构有一定改善作用。调和营卫是防治糖尿病心肌病的新治法、新思路。
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Key words
huanglian jiedu decoction,collagen ⅲ,spontaneous diabetes rats,collagen reconstruction,angiotensinⅱ,collagenⅰ,guizhi decoction,diabetes,traditional chinese medicine,proteins,heart,drug therapy
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