在初级抗脂综合征中,血管异常,偏氧酶活性和功能障碍的高密度胆固醇 (HDL)
Marietta Charakida1, Christian Besler, Joana R Batuca
1Department of Vascular Physiology, The Institute of Child Health, University College London, 34 Great Ormond St, London WC1N 1EH, England. charakidadoc@gmail.com
JAMA
|September 17, 2009
概括
患有抗脂抗体 (aPL) 的女性表现出与降低氧酶活性相关的动脉异常. 它们的高密度脂蛋白 (HDL) 也显示出抗炎和抗氧化功能受损,导致血管功能障碍.
科学领域:
- 血管生物学和免疫学
- 心血管疾病机制的心血管疾病机制
- 自免疫性疾病并发症 自免疫性疾病并发症
背景情况:
- 抗脂综合征 (APS) 与加速动脉样硬化有关.
- 在APS的特定血管异常和潜在机制仍然不完全理解.
- 偏氧酶活性和高密度脂蛋白 (HDL) 功能与心血管健康有关.
研究的目的:
- 为了比较女性的血管结构和功能与抗脂抗体 (aPL) 与对照对照.
- 调查aPL阳性个体的血管参数和偏氧酶活性之间的关系.
- 为了评估HDL的抗炎和抗氧化性质在女性aPL.
主要方法:
- 一项涉及77名aPL妇女和77名匹配对照的横截面研究.
- 测量包括动脉内心介质厚度 (CIMT),流介导扩张 (FMD),脉冲波速度 (PWV) 和氧酶活性.
- 在体外测试中检查了HDL对内皮氧化产生的影响,粘附分子表达和氧化应激.
主要成果:
- 与对照组相比,aPL妇女的CIMT和PWV增加,口炎减少.
- 在aPL的女性中,偏氧酶活性显著降低,与CIMT和PWV相反相关.
- 患有aPL的女性的HDL抑制了氧化的产生,并表现出淡的抗炎和抗氧化特性.
结论:
- 患有aPL的女性表现出显著的功能和结构性动脉异常.
- 这些异常与偏氧酶活性降低和HDL功能受损有关.
- 这些发现突出了在抗脂综合征中加速动脉样硬化的潜在机制.
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