バロレフレクスのバッファリングと血管活性薬に対する感受性
Jens Jordan1, Jens Tank, John R Shannon
1Franz-Volhard Clinical Research Center and Helios Klinikum, Medical Faculty of the Charité, Humboldt-University, Berlin, Germany. jordan@fvk-berlin.de
Circulation
|March 27, 2002
まとめ
バロレフレクスのバッファリングは,体が血管活性薬にどのように反応するかに大きな影響を与えます. バロレフレクスの機能のわずかな変化でさえ,薬剤の感受性を大幅に変化させ,血圧の調節に影響を与える可能性があります.
科学分野:
- 心血管生理学 心血管の生理学
- 自律神経系の機能 自律神経系の機能
- 薬理学 薬理学とは
背景:
- 血圧の調節には,直接的な血管トーン効果と間接的なバロレフレクスのバッファリングが含まれています.
- バロレフレクスの機能の変動性は,血管活性薬に対する反応に影響しますが,その大きさは不明です.
研究 の 目的:
- バロレフレクスの機能と血管活性薬の反応の関係を調査する.
- 異なる患者グループにおける薬物感受性に対するバロレフレクスのバッファリングの影響を定量化するために.
主な方法:
- 健康な対照群および正静性不耐症,エッセンシャル高血圧,単一性高血圧,多重系性縮症の患者におけるバロレフレクスの機能と血管活性薬反応の特徴.
- バロレフレクスのバッファリングと薬物反応性を評価するために,フェニルフリンとニトロプロシドの感受性を測定した.
主要な成果:
- 血管活性薬の感受性は,グループによって有意に変化し,バロレフレクスのバッファリング能力と強く相関していた.
- エッセンシャル高血圧,モノジェニック高血圧,多発性系性縮症の患者は,対照群および静止不耐症の患者と比較して,薬剤に対する感受性が高かった.
- バロレフレクスのバッファリングは,心拍数のバロレフレクスの制御よりも,薬剤感受性のより強力な決定因子でした.
結論:
- バロレフレクスの血圧バッファリングは,血管活性薬に対する感受性を決定する上で重要な役割を果たします.
- バロリフレックス機能の適度な変化は,血管活性薬の有効性に大きな変化をもたらす可能性があります.
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