在一般人群中,基因组复制数变异,睡眠和认知的相互作用
Cecile Poulain1,2, Rackeb Tesfaye3, Elise Douard4,5
1Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC, Canada. cecile.poulain@umontreal.ca.
Translational psychiatry
|October 6, 2025
概括
基因组拷贝数变异 (CNVs) 以U形模式影响睡眠时间,但不会增加失眠风险. CNV与认知有关,睡眠仅在边缘中介这种关联.
科学领域:
- 遗传学 遗传学 是一个
- 神经科学是一个神经科学.
- 睡眠医学 睡眠医学
背景情况:
- 基因组副本数变异 (CNV) 与神经发育障碍 (NDD) 和认知缺陷有关.
- CNV,睡眠和认知之间的关系尚不清楚,尽管睡眠障碍,NDD和认知功能之间的联系已经确立.
- 研究这些关系对于理解遗传,睡眠和认知因素的复杂相互作用至关重要.
研究的目的:
- 在大量人群中调查 CNV,睡眠特征,认知能力和执行功能之间的关系.
- 为了确定CNV是否影响睡眠时间和失眠风险.
- 探索睡眠时间在 CNV 和认知表现之间的关联中扮演的调解角色.
主要方法:
- 利用了来自498,852个人的英国生物库数据.
- 分析了全基因组的CNV数据.
- 进行了CNV负载分析,以评估CNV负载与睡眠/认知表型之间的关联.
- 复制了已知的认知能力和睡眠时间之间的U形关系.
主要成果:
- 复制了认知能力和睡眠时间之间的U形关系.
- CNV负荷分析揭示了 CNV负荷和睡眠时间之间具有全基因组显著的U形关联 (p < 2e-16).
- CNVs并没有显著增加失眠的风险.
- 睡眠持续时间仅在微小程度上调解了CNV和较差的认知表现之间的关联.
结论:
- CNVs以U形模式影响睡眠时间,独立于失眠风险.
- 这些发现表明,CNVs具有影响睡眠和认知表型的类效应.
- 睡眠时间在CNV和认知缺陷之间的强有力的关联中起到最小的因果作用,表明了共同的遗传基础.
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