作为急性冠状动脉综合征的标志物,Malondialdehyde修饰的LDL
P Holvoet1, D Collen, F Van de Werf
1Center for Molecular and Vascular Biology, University of Leuven, Belgium. paul.holvoet@med.kuleuven.ac.be
JAMA
|May 18, 1999
概括
马隆迪甲基基改性LDL (MDA-LDL) 能够有效地识别不稳定性心痛,而Troponin I可以检测急性心肌梗塞 (AMI). 结合MDA-LDL和热素I可以改善急性冠状动脉综合征的诊断.
科学领域:
- 心脏病学 心脏病学
- 生物化学 生化学
- 临床诊断 临床诊断 临床诊断
背景情况:
- 循环中的低密度脂蛋白 (LDL) 水平可能表明内皮损伤或斑块不稳定.
- 准确识别急性冠状动脉综合征 (ACS) 对于及时干预至关重要.
研究的目的:
- 评估MDA修饰的LDL在识别患有不稳定性心痛和急性心肌梗塞 (AMI) 的患者的诊断效用.
- 为了比较MDA修饰的LDL,C-反应蛋白和ACS中的Troponin I的区分能力.
主要方法:
- 这是一项盲目的比较研究,涉及104名ACS患者和64名稳定冠状动脉疾病患者.
- 使用接收器操作曲线分析来评估MDA修饰的LDL,C反应蛋白和素I在稳定的CAD,不稳定的心痛和AMI之间区分的能力.
主要成果:
- 经MDA修改的LDL区分了稳定的CAD和不稳定的胸痛 (P = .001).
- 特罗邦尼I区分不稳定的心痛与AMI (P<.001).
- 两种MDA修饰的LDL和Troponin I都确定了稳定的CAD与AMI (分别P<.001和P =.02). 这种组合显示出高灵敏度 (98%的不稳定性胸痛,100%的AMI) 和特异性 (99%).
结论:
- 经MDA修饰的LDL在识别ACS.中的内皮损伤和斑块不稳定性方面表现有前途.
- 将MDA修饰的LDL与I型托波宁结合起来,可以更好地区分稳定的CAD和ACS,从而提供更全面的诊断方法.
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