多臓器不全は,圧倒的な全身性炎症に対する適応的,内分泌媒介の代謝反応である
Mervyn Singer1, Vincenzo De Santis, Domenico Vitale
1Bloomsbury Institute of Intensive Care Medicine, Wolfson Institute of Biomedical Research and Department of Medicine, University College London, London, UK. m.singer@ucl.ac.uk
Lancet (London, England)
|August 11, 2004
まとめ
セプシスのような重篤な疾患は,臓器不全ではなく,防御反応を誘発する. 細胞代謝とミトコンドリアの活動が低下すると,重度の炎症時に生存率が向上する可能性があります.
科学分野:
- クリティカルケア医療は,重症治療薬です.
- 細胞の代謝は細胞の代謝である.
- 免疫学 免疫学とは
背景:
- セプシスおよび重症疾患は,炎症,免疫,ホルモン,代謝の変化を含む複雑な二相反応を引き起こす.
- 急性期はストレスホルモンの急上昇とミトコンドリアの活動の増加が特徴です.
- 重度の炎症と内分泌のシフトは,細胞のエネルギー生産を妨げ,臓器機能障害を引き起こす.
研究 の 目的:
- 重症疾患における複数の器官機能障害は,構造的障害ではなく,機能的,保護的メカニズムであると提案する.
- 臓器衰退におけるミトコンドリア機能障害の役割を調査する.
- 急性期ホルモン/炎症変化とミトコンドリア効果の関連性を調査する.
主な方法:
- この研究は主に概念的であり,既存の文献に基づいた新しい枠組みを提案しています.
- 重要な疾患における炎症,ホルモン,代謝反応に関する発見を統合しています.
- 提案されたメカニズムは,これらの変化が細胞代謝と臓器機能に与える影響を分析することを含む.
主要な成果:
- 複数の臓器機能障害は,真の機能不全ではなく,保護的で反応的な状態を表す可能性があります.
- ミトコンドリアの活性低下と酸化性リン酸化は,細胞代謝を低下させる.
- 急性期ホルモンおよび炎症メディエーターがミトコンドリア機能障害を引き起こす可能性が高い.
結論:
- 重要な疾患における臓器機能不全は,細胞エネルギーを保存するための機能的適応である.
- ミトコンドリア機能の低下は,この適応反応の重要な要因である.
- 深刻な疾患におけるホルモンと炎症のカスケードは,この保護的代謝シフトを媒介する.
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