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ビタミンD と サルコペニア: 筋肉 健康 に 対する 影響
Héctor Fuentes-Barría1,2, Raúl Aguilera-Eguía3, Lissé Angarita-Davila4
1Vicerrectoría de Investigación e Innovación, Universidad Arturo Prat, Iquique 1100000, Chile.
Biomedicines
|August 28, 2025
まとめ
ビタミンD (Vit D) 欠乏症は,高齢者の筋肉衰弱症であるサルコペニアと関連しています. 栄養補充は 特に運動とタンパク質で 役立つかもしれませんが もっと研究が必要です
科学分野:
- ゲロントロジー
- 栄養学
- 運動器官の健康
背景:
- サルコペニアは進行性で,年齢に関係する筋骨格障害で,筋肉の喪失と機能の低下を引き起こします.
- ビタミンD (Vit D) は,骨の健康を超えて骨格筋の生理学における役割としてますます認識されています.
研究 の 目的:
- 高齢者の血清ビタミンD濃度とサルコペニアの関係を批判的に分析する.
- 病理生理学的メカニズム,診断基準,臨床的証拠,予防戦略をレビューする.
主な方法:
- 観察研究,RCT,メタ解析 (過去10年) の統合的ナラティブレビュー
- 国際サルコペニア診断基準 (EWGSOP2,AWGS,FNIH,IWGS) を含んでいる.
- ビタミンDの不足に関するガイドラインと筋肉におけるVDRシグナリングを調べた.
主要な成果:
- 低血清25-ヒドロキシビタミンDは,筋肉の強度,性能の低下,およびサーコペニーの高い罹患率と関連しています.
- ビタミンDのサプリメントの効果は様々で,欠乏した個体ではより顕著で,運動/タンパク質と併用されます.
- ビタミンDはゲノム/非ゲノム経路で筋肉に影響を与え,カルシウム,ミトコンドリア,酸化ストレス,炎症を調節する.
結論:
- ビタミンD欠乏症は,高齢者のサルコペニアおよび機能障害の修正可能な危険因子です.
- ビタミンDが筋肉の健康に 果たす役割は証明されていますが 最適な値と投与量はさらなる研究が必要です
- 個別化された多様式アプローチ (サプリメント,運動,栄養) は,予防と治療において最も有望である.
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