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Clinical significance of changes in plasma calcitonin gene-related peptide,endothelin,and nitric oxide levels in patients with acute myocardial infarction

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Author:
No author available
Journal Title:
CHINESE CRITICAL CARE MEDICINE
Issue:
9
DOI:
10.3760/j.issn:1003-0603.1999.09.003
Key Word:
心肌梗死,急性;静脉溶栓;降钙素基因相关肽;内皮素;一氧化氮;血管再通

Abstract: 目的:观察急性心肌梗死(AMI)患者静脉溶栓前后早期血浆降钙素基因相关肽(cGRP)、内皮素(ET)和血清一氧化氮(NO)水平的变化.方法:采用放射免疫法和比色分析法分别对静脉溶栓前后血管再通组(30例),与未通组(22例)的AMI患者及20例正常人上述3种血管活性物质进行检测.结果:AMI时患者cGRP再通组(38.64±7.14)ng/L,未通组(32.98±10.07)ng/L;NO再通组(18.71±3.56)μmol/L,未通组(14.85±4.04)μmol/L;ET再通组(132.62±31.63)ng/L,未通组(167.33±30.61)ng/L;对照组分别为(52.94±14.17)ng/L、(21.17±6.34)μmol/L和(66.65±10.63)ng/L,未通组较再通组变化更为明显.溶栓后12小时,各组cGRP、NO有所回升,但未通组cGRP仍显著低于再通组(P<0.05);再通组ET继续升高,未通组则开始下降.溶栓后24小时,2组cGRP和NO继续升高,再通组ET下降,未通组则略有升高.结论:血浆cGRP、ET和血清NO参与了AMI早期的病理生理过程,AMI发病24小时内血浆ET升高和cGRP、NO降低可能对静脉溶栓的疗效产生不良的影响.

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