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急性冠脉综合征患者纤溶活性与脂蛋白(a)的关系探讨 被引量:2

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摘要 目的通过测定急性冠脉综合征(ACS)患者血浆中组织型纤溶酶原激活剂(t-PA)、纤溶酶原激活剂抑制物(PAI-1)抗原含量及脂蛋白(a)[Lp(a)]的水平,探讨纤溶活性与Lp(a)对冠脉血栓形成的影响及相互关系。方法选取54例发病1h~8h以内的ACS患者作为病例组,并据病情分为不稳定型心绞痛(UAP)组及急性心肌梗死(AMI)组;42名健康体检者作为对照组。用ELISA法检测研究对象血浆t-PA、PAI-1抗原含量,用免疫透射比浊法检测Lp(a)的浓度,比较两组中各指标的变化。结果UAP组及AMI组血浆t-PA、PAI-1含量较对照组明显升高(P<0.05或P<0.01),t-PA在UAP组与AMI患者之间无统计学意义,而AMI组PAI-1含量较UAP组明显增高。UAP组及AMI组血浆Lp(a)浓度较对照组明显升高,AMI组又较UAP组明显升高。血浆Lp(a)水平与PAI-1含量存在着显著的正相关,而与t-PA含量之间无显著的相关关系。结论冠脉血栓疾病发生时,血浆纤溶活性下降,t-PA、PAI-1抗原含量增加,以PAI-1增加为明显;血浆Lp(a)水平增高。Lp(a)促进PAI-1的分泌,抑制t-PA的分泌,减弱t-PA活性,打破了t-PA与PAI-1的动态平衡。
出处 《中西医结合心脑血管病杂志》 2009年第8期978-980,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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