体质指数与东亚人口的抑郁/焦虑之间的关联:孟德尔的随机化研究
Perl Han Lee1,2, Szu-Chia Chen3,4,5, Chien-Hung Lee6
1Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
The Kaohsiung journal of medical sciences
|December 24, 2025
概括
更高的体重指数 (BMI) 可能会降低抑郁和焦虑的风险. 这项针对台湾成年人的门德尔随机化研究表明,肥胖和心理健康结果之间存在逆因果关系.
科学领域:
- 遗传学 遗传学 是一个
- 流行病学 流行病学
- 精神病学是一个精神病学.
背景情况:
- 肥胖和精神疾病是全球主要的健康负担.
- 身体质量指数 (BMI) 和心理健康之间存在双向联系,但因果关系尚不清楚.
- 门德尔随机化 (MR) 可以帮助通过使用遗传变异来澄清因果关系.
研究的目的:
- 调查BMI与抑郁/焦虑症状之间的因果关系.
- 在台湾人群中使用基因仪器对BMI进行MR.
主要方法:
- 孟德尔的随机化分析使用13和17个单核酸多态 (SNP) 测量BMI.
- 数据来自107,191名台湾成年人 (4855例,102,336例对照).
- 逆变量加权分析以评估相关性.
主要成果:
- 在基因预测的BMI和抑郁/焦虑症状之间发现了反向因果关系.
- 预测的BMI每增加1个单位都与这些精神症状的风险降低有关.
- 使用不同的基因仪器组观察到一致的逆效应.
结论:
- 在这个东亚人口中,较高的BMI可能与精神疾病风险降低有关.
- 研究结果表明,可能存在人口特异性差异或机制.
- MR有效地阐明了复杂的暴露-结果关系,强调了研究肥胖-心理健康途径的必要性.
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