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超囊性贫血是人类动脉内皮功能障碍的危险因素
Circulation
|November 14, 1997
概括
高水平的homocysteine与健康成年人的动脉内皮功能障碍有关. 这种情况是早期动脉样硬化的一个独立风险因素,影响血管健康.
科学领域:
- 心血管研究研究心血管研究
- 血管生物学 血管生物学
- 代谢综合征是代谢综合征的一种.
背景情况:
- 高水平的homocysteine (高homocysteinemia) 是血管疾病的一个已知的危险因素.
- 类固醇可以损害内皮细胞,这表明在早期动脉样硬化中起着作用.
- 在无症状的成年人中,高血糖蛋白和内皮功能障碍之间的关联需要进一步调查.
研究的目的:
- 为了评估高血糖蛋白血症和动脉内皮功能障碍之间的联系.
- 评估健康,无症状的成年人的内皮功能,具有不同水平的homocysteine.
主要方法:
- 使用高分辨率超声波测量手臂动脉扩张.
- 评估了内皮依赖的流介导扩张 (EDD) 和内皮独立的甘氨酸诱导扩张 (GTN).
- 14名患有高homocysteinemic的受试者与14名对照人进行了比较,他们与关键健康参数相匹配.
主要成果:
- 与对照组相比,患有高homocysteinemia的受试者表现出明显较低的EDD (6.5%与10.8%,P<.001).
- 两组之间没有观察到GTN反应的显著差异 (P=.90).
- 确定同类氨酸水平是EDD受损的最强的独立预测因素.
结论:
- 超高囊血是动脉内皮功能障碍的独立危险因素.
- 这种功能障碍是健康中年成人早期动脉样硬化的标志物.
- 研究结果强调了管理同型半氨酸水平对血管健康的重要性.
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