L-アルギニンとS-ニトロソグルタチオンは,ヒトの血栓形成を減少させます
Z Kaposzta1, P A Baskerville, D Madge
1Clinical Neuroscience, St George's Hospital Medical School, Cranmer Terrace, London.
Circulation
|May 23, 2001
まとめ
L-アルギニンとS-ニトロスグルタチオン (GSNO) は,大動脈末関節切除術後のドップラー栓塞信号を著しく減少させた. これらの発見は,血栓塞栓性疾患の治療における酸化窒素システムの潜在的な治療用途を示唆しています.
科学分野:
- 神経科学は神経科学である.
- 心血管医学 心血管医学
- 薬理学 薬理学とは
背景:
- L-アルギニンはex vivoで抗血小板効果を示していますが,臨床的証拠は不足しています.
- 頸動脈末関節切除術後のドップラー超音波で検出された脳栓塞信号は,脳卒中の再発を予測する.
- S-ニトロソグルタチオン (GSNO) は,血小板特異性の可能性がある酸化窒素ドナーです.
研究 の 目的:
- L-アルギニンとGSNOの抗血小板効果を評価する.
- これらの薬剤が心臓動脈末関節切除術後の栓塞信号を減少させるかどうかを判断する.
主な方法:
- ランダム化,ダブルブラインド,プラセボ対照試験.
- 患者は手術後90分間,静脈内投与L-アルギニン,GSNO,またはプラセボを受けた.
- 中脳動脈の栓塞信号の24時間間のクロニアルドップラーモニタリング.
主要な成果:
- L-アルギニンとGSNOは,プラセボと比較してドップラー栓塞信号を著しく減少させた (P<0.001).
- 最初の4時間における血栓信号の平均値は,プラセボ44.7,L-アルギニン9.5,GSNO0.8.
- 信号の減少は,両方の治療群で24時間続いた.
結論:
- 静脈内投与のL-アルギニンとGSNOは,ヒトにおけるドップラー栓塞信号を効果的に弱める.
- 酸化窒素系を調節することで,血栓塞栓性疾患の新たな治療法を提供することができる.
- ドップラー栓塞信号検出は,抗血小板剤の有効性を評価するための有効な方法です.
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