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Updated: May 26, 2025

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低LDL胆固醇和细菌和病毒感染的风险:观察性和门德尔随机化研究

Marianne Benn^1,2,3, Frida Emanuelsson¹, Anne Tybjærg-Hansen^1,2,3,4

¹Department of Clinical Biochemistry, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.

European heart journal open

|February 24, 2025

概括

受遗传因素影响的低LDL胆固醇与细菌感染风险降低,但病毒感染风险增加有关. 这一发现对了解胆固醇胆固醇有意义.

科学领域:

遗传学与医学遗传学与医学
传染病流行病学传染病流行病学

背景情况:

低密度脂蛋白 (LDL) 胆固醇水平的低水平已经与传染病风险增加有关.
关键胆固醇代谢基因 (LDLR,PCSK9,HMGCR) 和多基因分数的遗传变异为研究因果关系提供了工具.

研究的目的:

测试基因决定低LDL胆固醇与一般人群感染性疾病风险相关的假设.
为了区分遗传性LDL胆固醇水平对细菌和病毒感染的影响.

主要方法:

在三个大型人口群体中利用了观察和门德尔随机化设计 (哥本哈根总人口研究/哥本哈根城市心脏研究,英国生物银行,FinnGen).
研究了基因影响的LDL胆固醇水平与各种细菌和病毒感染的风险之间的关联.
分析了从LDLR,PCSK9,HMGCR基因和多基因LDL胆固醇得分中获得的遗传分数.

主要成果:

通过观察,较低的LDL胆固醇与较高的细菌和病毒感染住院风险相关.
从遗传学上讲,较低的LDL胆固醇与PCSK9,白细胞计数和C反应性蛋白水平的降低有关.
遗传分数表明,不特定的细菌感染,腹性疾病,细菌性肺炎和败血症的风险较低,但不特定的病毒感染和艾滋病毒/艾滋病的风险更高.

结论:

基因决定的低LDL胆固醇与较低的炎症标志物有关,并降低了几种细菌感染的风险.
相反,基因低的LDL胆固醇与病毒感染风险增加有关,包括艾滋病毒/艾滋病.
研究结果表明,LDL胆固醇水平对各种类型感染的易感性有着复杂,差异化的影响.

关键词:

细菌感染是一种细菌感染.传染性腹疾病是一种传染性腹疾病.这就是为什么LDL胆固醇是LDL胆固醇.降低脂质 - 降低脂质的方法史塔丁类药物是一种病毒感染是一种病毒感染.

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