性別による体脂肪の分布は,心血管の老化を予測する
Vladimir Losev1, Chang Lu1, Shamin Tahasildar1
1MRC Laboratory of Medical Sciences, Imperial College London, Hammersmith Hospital Campus, London, UK.
European heart journal
|August 22, 2025
まとめ
体脂肪の分布は 心血管の老化に大きく影響します 内臓脂肪と肝臓脂肪は両性において心臓血管の年齢を増加させますが 腹部脂肪とアンドロイド質量は男性に影響します 膝の脂肪は 保護的かもしれません
科学分野:
- 心血管生物学
- メタボリック・ヘルス
- 老化に関する研究
背景:
- 心血管の老化は 生理学的準備力の低下で 遺伝と環境の影響を受けます
- 肥満は早期老化に関連していますが 脂肪の分布の役割は不明です
- この研究では 性別特有の脂肪現象と心臓血管の老化への影響が研究されています.
研究 の 目的:
- 性別による体脂肪の分布が 心血管の老化にどのように影響するか
- 加速または減速した心血管老化に関連した特定の脂肪貯蔵を特定する.
- 健康的な寿命を促進するための介入の潜在的なターゲットを探求する.
主な方法:
- 21241人の参加者の英国バイオバンクデータを分析した.
- 126のイメージングの特徴から 心血管の年齢を予測する機械学習です
- 全身画像を用いた体脂肪の量と分布の評価
- 多変量回帰とメンデルのランダム化により,関連性と因果関係を評価する.
主要な成果:
- 内臓の脂肪組織,筋肉の脂肪組織の浸透,そして肝臓の脂肪は,両性において心臓血管の年齢の増加を強く予測した.
- 腹部皮下脂肪組織とアンドロイド脂肪群は,男性でのみ心血管の年齢増加と関連していました.
- 遺伝的に予測されたギノイド脂肪は,心血管の年齢の低下と関連していました.
結論:
- 体脂肪の分布は性別のパターンで 心血管の老化に影響します
- 脂肪組織の分布と機能は 健康な寿命を延ばすための介入の重要なターゲットです
- 特定の脂肪貯蔵所をターゲットにすることで 心血管の健康を保つための パーソナライズされた戦略を提供できます
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