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25-基维生素D度对大脑小血管疾病的因果作用:孟德尔的随机化研究

Keon-Joo Lee¹, Hakyung Kim², Soo Ji Lee^2,3

¹Department of Neurology, Korea University Guro Hospital, Seoul, Republic of Korea (K.-J.L.).

|July 19, 2023

概括

这项研究发现,低维生素D水平与脑小血管疾病 (cSVD) 之间没有因果关系. 建议反向因果关系,其中cSVD影响维生素D,影响潜在的干预措施.

科学领域:

神经学神经学
遗传学是一个遗传学.
内分泌学在内分泌学.

背景情况:

观察性研究将较低的血清25-基维生素D [25(OH) D]与增加的脑小血管疾病 (cSVD) 联系起来.
因果关系仍然不确定,尽管25(OH) D作为干预目标的潜力.

研究的目的:

通过使用孟德尔随机化来研究血清25(OH) D度对cSVD表型的因果作用.
为了探索cSVD和25(OH) D水平之间的潜在反向因果关系.

主要方法:

采用了2个样本的孟德尔随机化,并使用了来自25(OH) D和cSVD表型的大型全基因组关联研究的遗传仪器.
包括敏感性分析和双向门德尔随机化来评估因果关系和反向因果关系.

主要成果:

没有发现25(OH) D对cSVD表型 (缺口中风,白质过强度,大脑微型血流,周围血管空间) 的显著因果作用.
敏感性分析证实没有因果关系.
大脑微型血液显示与25(OH) D度有负相关性,这表明反向因果关系.

结论:

25(OH) D和cSVD之间的关联可能不是因果关系,有证据支持反向因果关系.
研究结果表明,根据目前的证据,针对cSVD的维生素D干预措施可能不有效.

关键词:

门德尔的随机化大脑大脑大脑的大脑大脑大脑小血管疾病是大脑小血管疾病.多态性,单核酸,单核酸.维生素D缺乏症维生素D缺乏症

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