不安定なアンギナと上昇したC反応性タンパク質レベルは,加害者の病変の強化された血管活性性を予測します
F Tomai1, F Crea, A Gaspardone
1Cattedra di Cardiochirurgia, Università di Roma Tor Vergata, Rome, Italy. f.tomai@tiscalinet.it
Circulation
|September 26, 2001
まとめ
C反応性タンパク質 (CRP) 濃度によって示される炎症は,不安定な胸痛を有する患者の冠動脈の反応性を高めます. これは,炎症メカニズムが動脈硬化性プラークの反応性を調節する上で重要な役割を果たしていることを示唆しています.
科学分野:
- 心臓病学 心臓病学
- 血管生物学 血管生物学
- 炎症の研究 炎症の研究
背景:
- プラーク炎症は冠動脈血管運動に影響を与える可能性があります.
- システミックC反応性タンパク質 (CRP) レベルは,冠動脈血管活性との関連性について調査されています.
研究 の 目的:
- 安定したまたは不安定な胸痛を有する患者の全身CRPレベルと冠動脈血管活性との関係を評価する.
- 炎症が冠動脈動脈硬化板の反応性を調節するかどうかを判断する.
主な方法:
- 定量冠動脈血管撮影は,最小光径 (MLD) の変化を測定するために使用されました.
- 患者は,冷圧器検査 (CPT) とニトログリセリン (NTG) 投与を受けた.
- 血清CRP濃度が測定され,正常または上昇として分類されました.
主要な成果:
- 不安定性アンギナ患者は,安定性アンギナ患者と比較して,CPT中により大きなMLD減少を示し,NTG後に増加しました.
- 高いCRPレベルは,CPT中により大きなMLD減少と,NTG後に増加と相関する.
- 多変量分析では,不安定なアンギナと上昇したCRPが,強化された血管活性性の独立した予測因子として特定されました.
結論:
- 原因病変の血管活性性の強化は,不安定な胸痛患者で確認されています.
- CRPによって証明された炎症的メカニズムは,冠動脈動脈硬化プラークの反応性を著しく調節します.
- 炎症は,不安定なプラークで観察された強化された血管活性を部分的に説明する可能性があります.
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