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系统性A-CoA:胆固醇乙烯转移酶抑制可以减少炎症,并改善高胆固醇血的血管功能
Rajesh K Kharbanda1, Sharon Wallace, Benjamin Walton
1Vascular Physiology Unit, ICH and Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom.
Circulation
|February 9, 2005
概括
系统性ACAT抑制改善了内皮功能,并减少了高胆固醇贫血患者的炎症. 这表明,通过向血管炎症和内皮功能障碍来治疗动脉样硬化的新疗法.
科学领域:
- 心血管研究研究心血管研究
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 动脉样硬化的发展和进展与循环脂质和血管炎症有关.
- 乙-CoA:胆固醇乙转移酶 (ACAT) 调节血管壁中的脂质代谢.
- 在动物模型中,ACAT抑制在减少动脉样硬化方面表现有前途.
研究的目的:
- 为了研究系统性ACAT抑制对高胆固醇贫血人类内皮功能的影响.
- 评估ACAT抑制对循环脂质和全身炎症标志物的影响.
主要方法:
- 这是一项双盲,随机交叉,安慰剂控制的试验,涉及21名高胆固醇患者.
- 评估包括循环脂质,炎症标志物,抵抗血管内皮功能和导管血管血管活性.
- 治疗包括阿瓦西米布750毫克QDS,持续8周.
主要成果:
- 观察到总胆固醇的小幅降低 (326+/-25至311+/-22毫克/分升,P=0.04).
- 循环瘤坏死因子-α水平显著下降 (4.0+/-0.3至3.6+/-0.2 pg/mL,P=0.02).
- 对乙胆,布拉迪基宁和维拉帕米尔的抵抗血管反应显著增强.
结论:
- 系统性ACAT抑制有效降低瘤亡因子-α,并改善高胆固醇患者的抵抗血管内皮功能.
- 通过解决血管炎症和内皮功能障碍,ACAT抑制可能为动脉样硬化提供一种新的治疗策略.
- 对循环胆固醇的影响很小,这表明非脂质依赖的机制很重要.
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