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Updated: Jun 19, 2026

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Pseudomonas aeruginosa Induced Lung Injury Model
Published on: October 29, 2014
高地肺腫の病原性:炎症はエチオロギー的要因ではない
Erik R Swenson1, Marco Maggiorini, Stephen Mongovin
1Pulmonary and Critical Care Section, S-111-Pulm, Veterans Affairs Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA 98108, USA. eswenson@u.washington.edu
JAMA
|May 1, 2002
まとめ
高地肺腫 (HAPE) は,肺動脈の圧力が上昇し,タンパク質に富んだ出血性腫を引き起こします. 初期のHAPEは正常な炎症マーカーを示し,主に炎症的ではなく,水立性腫であることを示します.
科学分野:
- 生理学 生理学とは
- 高地医学は,高地医学である.
- 肺内医学 肺内医学 肺内医学
背景:
- 高地肺腫 (HAPE) の病原性は議論されており,肺血管収縮と高毛細血管圧力の影響によるアルベオラ・毛細血管障壁の透過性の変化を含む理論がある.
- HAPEにおける以前のブロンコアルベオラ洗浄 (BAL) 発見は,炎症的エチオロギー特性の可能性を示唆した.
研究 の 目的:
- 炎症がHAPEの主要なイベントであるかどうかを調査する.
- HAPE開発における出来事の時間的な順序を確立する.
主な方法:
- 10人のHAPE感受性および6人のHAPE耐性被験者を対象としたケーススタディ,すべて高空での経験を持つ非プロのアルピニスト.
- 肺動脈の圧力測定とBAL流体分析は,HAPEの発生前または発生時に,低高度 (490 m) と高高度 (4559 m) で実施されました.
主要な成果:
- HAPE感受性の被験者は,耐性被験者 (66対37 mm Hg) と比較して,高い高度で肺動脈シストリック圧が有意に高かった.
- 感受性の高い群と耐性のある群,あるいは低高度と高高度との間で,BAL流体全白血球数の違いは観察されなかった.
- HAPE症例におけるBAL液は,高濃度の血タンパク質と赤血球を示したが,サイトカインやイコサノイドのような炎症マーカーの増加は認められなかった.
結論:
- 初期のHAPEは,肺動脈の圧力が上昇し,水静的肺水腫につながることが特徴です.
- 腫はタンパク質に富み,軽度の出血性であり,白血球,サイトカイン,イコサノイドのレベルが正常である.
- HAPEは主に水静的肺腫の一種で,アルベオラ-毛細血管の透かし性が二次的に変化します.
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