集中治療室の患者のセプシスの初期段階で,外周血液単核細胞ミトコンドリア機能の進行
Hanneke P F X Moonen1,2, Rianne Slingerland-Boot1,2, Jelle C B C de Jong3,4
1Department of Intensive Care Medicine and Research, Gelderse Vallei Hospital, Willy Brandtlaan 10, 6716 RP, Ede, The Netherlands.
Scientific reports
|February 13, 2026
まとめ
セプシス患者は,第1週ICUで外周血液単核細胞 (PBMCs) のミトコンドリア呼吸が増加することを示しています. この細胞活性の上昇は,3ヶ月以内に死亡率が高いことと関連しています.
科学分野:
- クリティカルケア・メディシン
- ミトコンドリア生物学
- セプシス 病理生理学
背景:
- セプシスは多臓器不全と死亡率につながる.
- ミトコンドリア機能障害は,早期のセプシスの鍵です.
- セプシス中のPBMCにおけるミトコンドリア機能の進行はよく理解されていません.
研究 の 目的:
- 初期のセプシス中にPBMCのミトコンドリア機能の変化を調査する.
- ミトコンドリア機能と敗血症の重症度の関係を評価する.
- 3ヶ月の死亡率を含む臨床結果との関連を決定する.
主な方法:
- ICU セプシス患者および対照群における見通し観察コホート研究.
- ミトコンドリア機能は,ICUの最初の週に3回,PBMCで評価されました.
- 酸化性リン酸化の遺伝子発現分析に使用されるRT-qPCR.
主要な成果:
- セプシス患者は,対照群と比較して,PBMCで基礎,ATP関連,最大,および陽子漏れ呼吸が増加した.
- SDBH (複合体II) とATP5F1A (複合体V) 遺伝子の発現が増加することが観察されました.
- 基礎呼吸の増加は,より高い3ヶ月の死亡率と相関していた (HR 3.794,p=0.047).
結論:
- PBMCミトコンドリアは,セプシスの最初の週に呼吸速度の上昇を示します.
- ミトコンドリア呼吸の漸進的な増加は,3ヶ月の生存率の低下と関連しています.
- PBMCsにおけるミトコンドリア機能は,セプシスの潜在的な予後的な洞察を提供します.
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