门德尔随机化评估纤维素水平和缺血性中风之间的因果关系
Gie Ken-Dror1, Tanya Khanna1, Emily Hills1
1Institute of Cardiovascular Research, Royal Holloway University of London (ICR2UL), London TW20 0EX, UK.
概括
高水平的纤维素素显著增加缺血性中风 (IS) 的风险. 门德尔的随机化证实,纤维素素水平升高是一个因果因素,每升1g/L可能会使中风风险增加一倍.
科学领域:
- 心血管遗传学 心血管遗传学
- 神经学 神经学
- 血栓形成研究研究
背景情况:
- 血纤维素水平升高是缺血性中风 (IS) 的已知危险因素.
- 纤维素原和IS之间的因果关系需要使用可靠的遗传方法进行进一步的研究.
研究的目的:
- 使用孟德尔随机化 (MR) 调查血纤维素水平与缺血性中风 (IS) 风险之间的潜在因果关系.
主要方法:
- 采用孟德尔的随机化 (MR) 方法,使用元分析衍生的数据.
- FGB rs1800790单核酸多态 (SNP) 作为纤维素水平的仪器变量.
- 逆变量加权 (IVW) 方法用于初级分析,使用替代方法进行敏感性分析.
主要成果:
- 对24项研究 (20,902例,76,510对照) 的元分析证实,FGB rs1800790 SNP是有效的仪器变量.
- 具有rs1800790特定基因型 (AG和AA) 的个体与GG同胞相比,表现出显著更高的血纤维素度.
- 门德尔随机分析显示,纤维素水平升高与IS风险增加之间存在显著的因果关系,纤维素水平每升1g/L增加都与更高风险有关.
结论:
- 血纤维素水平升高被证实是缺血性中风 (IS) 的致病风险因素.
- 每增加1g/L的纤维素度都与IS风险的大幅增加有关,突出了其临床意义.
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