受损的LCAT功能与动脉样硬化增加有关
G Kees Hovingh1, Barbara A Hutten, Adriaan G Holleboom
1Department of Vascular Medicine, Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
Circulation
|August 3, 2005
概括
患有LCAT基因缺陷的人具有较低的HDL胆固醇和高的甘油三,增加心血管疾病的风险. 针对LCAT可能为心血管疾病预防提供一个新的策略.
科学领域:
- 生物化学 生物化学
- 遗传学 是一个遗传学.
- 心血管医学 心血管医学
背景情况:
- 低HDL胆固醇是心血管疾病 (CVD) 的已知危险因素.
- 由于莱西丁:胆固醇酸转移酶 (LCAT) 基因突变,严重降低的HDL胆固醇在心血管疾病风险中的作用仍然不清楚.
- 了解LCAT突变载体中心血管疾病风险可能会揭示LCAT作为治疗点.
研究的目的:
- 调查LCAT基因突变与心血管风险因素之间的关联.
- 在LCAT基因缺陷的个体中评估心血管风险标志物.
主要方法:
- 评估了脂质,脂蛋白,C反应蛋白 (CRP) 和心动脉内心介质厚度 (IMT).
- 对比47个LCAT基因突变的异构体与58个家族对照.
- 根据年龄,性别和酒精使用情况调整后的统计分析.
主要成果:
- 异类动物的HDL胆固醇降低了36%,甘油三脂增加了23%,CRP增加了2.1倍.
- 与对照人群相比,异构卵性体内 Carotid IMT 显著增加 (P<0.0015 经调整后).
结论:
- LCAT基因缺陷与较低的HDL胆固醇,高甘油和增加的CRP有关.
- 观察到IMT的增加表明LCAT可以防止动脉样硬化.
- 针对LCAT增加HDL胆固醇可能是降低心血管疾病风险的可行策略.
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