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风湿性心脏病心房颤动患者心房组织基质金属蛋白酶表达的研究 被引量:8

Changes of MMP1,9 snd TIMP1 expression in patients with rheumatic heart disease and atrial fibrillation
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摘要 目的:检测风湿性心脏病心房颤动(房颤)患者心房组织中基质金属蛋白酶(MMP1,MMP9)及其组织抑制因子(TIMP1)表达的变化及血浆MMP1,MMP9、TIMP1水平的变化,并作相关分析。方法:56例风湿性心脏病二尖瓣病变患者分为3组,窦性心律组、阵发性房颤组和持续性房颤组,于心脏外科手术时取右心耳组织,采用逆转录-聚合酶链反应(RT-PCR)检测MMP1,MMP9及TIMP1mRNA的含量,同时取静脉血检测外周血MMP1,MMP9和TIMP1水平。结果:阵发性房颤组、持续性房颤组MMP9、TIMP1表达显著大于窦性心律组(P<0.05orP<0.01),TIMP1/MMP1比值明显升高(P<0.05orP<0.01),持续性房颤组TIMP1/MMP1比值明显高于阵发性房颤组(P<0.05);阵发性房颤组、持续性房颤组外周血MMP9、TIMP1水平及TIMP1/MMP1明显升高(P<0.05orP<0.01),与心肌组织表达水平相一致。相关分析显示,血浆MMP1,MMP9、TIMP1与心肌组织MMP1,MMP9、TIMP1显著正相关(r=0.71,P<0.01),MMP9、TIMP1与房颤时间正相关(r=0.68,P<0.01)。结论:风湿性心脏病患者心肌组织MMP9、TIMP1表达改变及TIMP1/MMP1比值改变可能是心房纤维化发生的分子机制之一,检测外周血MMP1,MMP9及TIMP1变化可了解其在心肌组织的表达情况。
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2006年第7期1437-1439,共3页 Chinese Journal of Pathophysiology
关键词 风湿性心脏病 心房颤动 基质金属蛋白酶 Rheumatic heart disease Atrial fibrillation Matrix metalloproteinases
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参考文献7

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二级参考文献14

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