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伝染性の重荷が動脈硬化症の程度と長期的な予後に影響を与える
Christine Espinola-Klein1, Hans J Rupprecht, Stefan Blankenberg
1Department of Medicine II, Johannes Gutenberg University Mainz, Germany. espinola@mail.uni-mainz.de
Circulation
|January 5, 2002
まとめ
クラミジア肺炎やヘリコバクター・パイロリなどの感染症剤は,動脈硬化症と関連しています. 高い感染負荷は,より重度の動脈硬化症と,心血管疾患による死亡リスクの増加と相関しています.
科学分野:
- 心血管疾患の研究について
- 感染症の病理学
- 免疫学 免疫学とは
背景:
- 新興の証拠は,感染症が動脈硬化症の発達に役割を果たすことを示唆しています.
- より多くの病原体への曝露は,動脈硬化症の程度を悪化させる可能性があります.
研究 の 目的:
- 特定の伝染病原体と動脈硬化症の程度との関連を調査する.
- 感染症負担が心血管疾患による死亡率と相関するかどうかを判断する.
主な方法:
- 8つの病原体に対する抗体レベル (IgG,IgA) は,572人の患者で測定されました.
- 動脈硬化症の程度は,冠動脈血管撮影,頸動脈二重音波撮影,足首-腕指数を使用して評価されました.
- 心血管疾患による死亡率は,平均3.2年間追跡された.
主要な成果:
- Chlamydia pneumoniae,Helicobacter pylori,cytomegalovirus,およびヘルペスシンプレックスウイルス2に対する抗体の上昇は,進行性動脈硬化症と関連していました.
- 高い感染負荷 (6〜8種の陽性性) は,高度な動脈硬化症 (OR 2.5) と有意に相関していた.
- 心血管疾患による死亡率は,進行性動脈硬化症と高い感染負担 (20.0%対7.0%) の患者で大幅に高かった.
結論:
- 発見は,動脈硬化症の病原性における感染症剤の役割を支持しています.
- 感染症負担と動脈硬化症の重症度との間に有意な関連性がある.
- 感染性病原体への曝露の増加は,特に進行性動脈硬化症の患者において,将来の死亡リスクを高めます.
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