在人类动脉样硬化中,改变的血与血管生物相比,揭示了内皮氧化合成酶合,内皮功能和炎症之间的关系
Charalambos Antoniades1, Cheerag Shirodaria, Mark Crabtree
1Department of Cardiovascular Medicine, University of Oxford, Oxford, UK.
Circulation
|November 28, 2007
概括
血管四氧化 (BH4) 改善了冠状动脉疾病患者的血管功能. 然而,血BH4表明系统性炎症,而不是血管健康.
科学领域:
- 心血管生物学 心血管生物学
- 内皮细胞功能 内皮细胞功能
- 血管医学 血管医学
背景情况:
- 四二烯 (BH4) 调节内皮氧化合成酶 (eNOS) 的活性.
- BH4在动脉样硬化,内皮功能和氧化应激中的作用尚未完全理解.
- 在冠状动脉疾病 (CAD) 中研究BH4的生物可用性至关重要.
研究的目的:
- 在CAD患者中定义血和血管生物水平之间的关系.
- 确定BH4对内皮功能,eNOS合和超氧化物产生的影响.
- 区分血与血管BH4.4的作用.
主要方法:
- 从219名CAD患者收集了静脉和内部乳腺动脉.
- 测量了血和血管生物水平.
- 评估了血管运动反应和血管超氧化物生产.
主要成果:
- 高的血管BH4与更好的血管松相关;高的血BH4与较差的血管松相关.
- 在血和血管生物之间发现了反向关系.
- 血管BH4,而不是血BH4,改善了eNOS合和降低了超氧化物生产.
- 血生物与C反应蛋白相关,表明炎症.
结论:
- 在CAD中,血和血管生物之间存在反向关联.
- 血管BH4是eNOS合和血管扩张的关键.
- 血生物素作为CAD中全身炎症的标志物.
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