急性冠動脈死亡におけるC反応性タンパク質値の上昇と動脈硬化:異なる病理学との関連
Allen P Burke1, Russell P Tracy, Frank Kolodgie
1Department of Cardiovascular Pathology, Armed Forces Institute of Pathology, Washington, DC 20306-6000, USA.
Circulation
|May 1, 2002
まとめ
高感度C反応性タンパク質 (hs-CRP) レベルは,重度の冠動脈疾患で突然死亡する個人に上昇します. この上昇は,プラークの特徴と致命的な冠動脈疾患の重症度と相関しています.
科学分野:
- 心血管病理学 心血管病理学
- バイオマーカー バイオマーカー
- 法医学病理学 法医学病理学 法医学病理学
背景:
- 高感度C反応性タンパク質 (hs-CRP) の上昇は,不安定な冠動脈症候群と関連しています.
- 以前の解剖研究では,hs-CRPレベルと致命的な冠動脈疾患のアウトカムが相関していることはありませんでした.
研究 の 目的:
- 死後のhs-CRPレベルと致死性冠動脈疾患との相関性を調査する.
- 解剖症例におけるhs-CRPと特定の動脈硬化性プラークの特徴の関係を調べる.
主な方法:
- 302件の解剖からhs-CRPの検定を受けた死後の血清.
- 死因は,アテロトロンビ (破裂/侵食),安定したプラーク,対照群に分類された.
- 定量的CRP免疫ヒストキミカル染色と冠動脈プラークの薄いキャップアテロマ.
主要な成果:
- 中央のhs-CRP濃度は,対照群と比較して,突然の冠動脈死亡 (破裂,侵食,安定したプラーク) で有意に高かった.
- 多変量分析では,他の危険因子とは関係なく,hs-CRPに関連したアテロトロンブ,安定したプラーク,およびプラーク負荷が示されました.
- より高いhs-CRPは,プラークにおけるCRPの染色強度の増加と,より多くの薄いキャップアテロマと相関していた.
結論:
- hs-CRPは,急性血栓形成に関係なく,重度の冠動脈疾患による突然死において著しく上昇します.
- 死後のhs-CRPレベルは,動脈硬化プラーク内の炎症の免疫ヒスト化学的証拠と相関しています.
- 発見は,hs-CRPが致命的な冠動脈イベントの病理学を理解する上で貴重なバイオマーカーであることを示唆しています.
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