生涯にわたる血圧に関連する加齢に伴うDNAメチル化パターン
Gang Xu1, Xiaowei Zhuang1,2, Amei Amei3
1Laboratory of Neurogenetics and Precision Medicine, College of Sciences, University of Nevada Las Vegas, Las Vegas, NV. USA.
bioRxiv : the preprint server for biology
|December 22, 2025
まとめ
DNAメチル化パターンは加齢とともに変化し、血圧に影響を与えることが示され、動的で加齢に関連する関連性が明らかになった。縦断的研究により、血管老化と心血管リスクに関連する時間的エピジェネティック変動が明らかになった。
科学分野:
- 遺伝学とエピジェネティクス
- 心血管の健康
- 老化研究
背景:
- エピゲノムワイド関連解析(EWAS)は、DNAメチル化と血圧を関連付ける。
- ほとんどの研究は単一時点のデータを使用しており、加齢関連の動態を捉えられていない。
- 加齢依存性エピジェネティック変化の理解は、心血管の健康にとって重要である。
主な方法:
- スプラインベースの変動係数モデルを用いた縦断的エピゲノムワイド関連解析(EWAS)。
- Multi-Ethnic Study of Atherosclerosis(MESA)からの1,945の血液サンプルを分析した。
- 共変量を調整して、Framingham Heart Studyからの1,187サンプルで複製した。
結論:
- 血液DNAメチル化は、血圧との動的で加齢に関連する関連性を示す。
- これらの所見は、直接的な細胞媒介だけでなく、全身性または血管性の老化を反映している。
- 縦断的EWASフレームワークは、心血管リスクバイオマーカーを特定するために重要な時間的エピジェネティックパターンを明らかにする。
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