使用孟德尔随机化,雌激醇与女性大脑和心理健康之间没有因果关系
Hannah Oppenheimer1,2, Dennis van der Meer3, Louise S Schindler4,5
1Division for Mental Health and Substance Abuse, Diakonhjemmet Hospital, Oslo, Norway. hannah.oppenheimer@psykologi.uio.no.
Nature communications
|December 5, 2025
概括
这项研究发现,雌醇水平与大脑健康之间没有一致的因果关系,包括阿尔茨海默氏症.
科学领域:
- 神经内分泌学神经内分泌学
- 遗传学 遗传学 是一个
- 大脑健康研究 研究大脑健康研究
背景情况:
- 雌激素在女性占主导地位的大脑疾病,如抑郁症和阿尔茨海默病的作用尚不清楚.
- 由于混因素和反向因果关系,观察性研究产生了不一致的结果.
- 雌激醇对大脑健康的影响需要超越传统观察方法进行强有力的调查.
研究的目的:
- 调查雌醇暴露与大脑健康之间的因果关系.
- 检查基因预测的雌激素水平与大脑年龄差距,阿尔茨海默病和抑郁症之间的关联.
- 为了确定荷尔蒙的波动,而不是恒定的水平,影响大脑健康结果.
主要方法:
- 采用两个样本的孟德尔随机化来评估因果关系.
- 使用英国生物银行数据,对大脑年龄差距和女性雌激素水平进行了全基因组关联研究.
- 在女性和男性样本中测试了与雌激醇相关的遗传因素和大脑健康结果之间的因果关系.
主要成果:
- 在不同样本中,在雌激素暴露和大脑年龄差距之间没有发现显著的关联.
- 该研究发现,雌醇暴露与阿尔茨海默氏症或抑郁症之间没有强有力的因果关系.
- 对男性的分析也没有显示出任何显著的关联,加强了缺乏持续的因果关系的影响.
结论:
- Estradiol 暴露似乎对大脑健康,阿尔茨海默病或抑郁症没有持续的因果关系.
- 这些发现表明,激素波动,而不是稳定的雌激素水平,可能会调解任何观察到的关联.
- 进一步的研究应该探索激素变化与女性神经健康之间的动态相互作用.
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