睡眠期間が生物学的老化に及ぼす非線形効果を,フェノタイプ,ゲノム,およびエピゲノムデータで評価する

Xueyao Wu¹, Xunying Zhao¹, Aaron Ge²

¹Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.

Aging

|August 26, 2025

まとめ

最適な睡眠時間は 7時間ほどで健康的な老化につながります睡眠不足は加速した老化バイオマーカーと関連していますが過剰な睡眠は

科学分野:

遺伝学
老化に関する研究
睡眠科学

背景:

睡眠時間と老化と健康との関係は矛盾しています
睡眠と老化との非線形的な関連は十分に研究されていないかもしれません

研究の目的:

睡眠時間と加速老化のバイオマーカーの非線形関係を調査する.
睡眠に関連したフェノエイジ加速度,バイオエイジ加速度,白血球テロメアの長さを分析する.

主な方法:

UK Biobankのデータ (n=442,664) をフェノタイプおよびゲノム情報で利用した.
適用された多変数線形回帰,制限された立方スプライン,およびメンデルのランダム化 (MR).
機能的アノテーションと細胞型濃縮分析を行いました.

主要な成果:

フェノタイプ分析では,PhenoAgeAccelとBioAgeAccelのU型関連が示され,最適な睡眠時間は7時間近くであった.
MRは非線形,値効果を示し,睡眠の短縮 (<7時間/日) は老化バイオマーカーを増加させ,睡眠の長さはLTLの線形効果を示した.
筋肉の維持と免疫経路を通じてBioAgeAccel/LTLと関連している.

結論:

睡眠時間の延長は生物学的老化を緩和するのに役立ちます
睡眠不足は必ずしも過剰な睡眠とは関係なく急速な老化に関連しているようです
生物学的メカニズムと過剰な睡眠の役割についてはさらに研究が必要です

キーワード:

生物学的な年齢因果的推論遺伝性の増強非線形関係睡眠時間

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