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降胆固醇治疗对冠状动脉内皮血管运动功能的影响,冠状动脉疾病患者
J A Vita1, A C Yeung, M Winniford
1Boston University School of Medicine, Boston, MA, USA. jvita@bu.edu
Circulation
|August 23, 2000
概括
六个月的simvastatin治疗在冠状动脉疾病和轻微升高胆固醇的患者中没有显著改善冠状动脉内皮血管功能. 降低胆固醇的治疗方法
科学领域:
- 心血管医学 心血管医学
- 药理学 药理学是指药理学的学科.
背景情况:
- 内皮功能障碍与心血管疾病有关.
- 众所周知,降胆固醇疗法对心血管有好处.
研究的目的:
- 为了研究simvastatin对冠状动脉内皮血管运动功能的影响.
- 为了确定simvastatin是否改善冠状动脉疾病患者的内皮功能.
主要方法:
- 随机,双盲,安慰剂控制的研究.
- 60名冠状动脉疾病患者接受了simvastatin (40 mg/d) 或安慰剂6个月.
- 冠状动脉内皮血管功能使用冠状动脉内注射乙胆和物质P的评估.
主要成果:
- 西姆瓦斯塔丁显著降低了40%的LDL胆固醇.
- 无论是simvastatin还是安慰剂,在对乙胆的反应中都没有显著改变心上冠状动脉收缩.
- 通过P物质输液评估的冠状动脉微血管的内皮依赖扩张,在治疗后的组之间没有显著差异.
结论:
- 在冠状动脉疾病和胆固醇轻微升高的患者中,六个月的simvastatin治疗没有显著改善冠状动脉内皮血管功能.
- 这些发现表明,降低胆固醇对内皮功能的影响是复杂的,可能不仅仅通过直接的血管运动改善来调解.
- 需要进一步的研究来阐明他类药物治疗的心血管益处背后的机制.
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