ブラジキニン誘発の筋収縮に対する保護は,神経キニン受容体抗体による喘息患者によるものです
M Ichinose1, N Nakajima, T Takahashi
1First Department of Internal Medicine, Tohoku University School of Medicine, Sendai, Japan.
Lancet (London, England)
|November 21, 1992
まとめ
FK-224のようなタキキニン受容体アンタゴニストは,ブラジキニンが誘発した筋収縮と喘息患者の咳を大幅に軽減しました. これは,タキキニンが喘息に作用し,抗抗剤が潜在的な治療法である可能性があることを示唆しています.
科学分野:
- 呼吸器医学とは
- 薬理学 薬理学とは
- 神経科学は神経科学である.
背景:
- 喘息の病原化には,軸索反射メカニズムが関与する可能性があります.
- エンドゲンなタキキニンを喘息の筋収縮と関連付ける直接的な証拠は存在しない.
- ブラディキニンは,支柱管収縮を誘発することが知られている.
研究 の 目的:
- 喘息患者におけるブラジキニン誘発の筋収縮に対するタキキニン受容体アンタゴニスト (FK-224) の効果を調査する.
- ブラジキニンに対する呼吸道感覚神経の反応におけるタキキニンの放出の役割を調査する.
主な方法:
- ダブルブラインド,プラセボ対照,クロスオーバー試験で,10人の安定した喘息患者を対象とした.
- FK-224またはプラセボの投与後にブラジキニンによる吸入チャレンジ.
- 線量依存性支柱筋収縮と咳の測定.
主要な成果:
- ブラジキニンは,すべての被験者において,投与量依存の支柱管収縮を誘発した.
- FK-224は,ブラジキニンの肺縮効果を有意に抑制した (p <0.001).
- また,FK-224は,ブラジキニンが誘発した咳を抑制した.
結論:
- FK-224によるタキキニン受容体の対抗作用は,喘息患者におけるブラジキニン誘発性肺縮と咳を効果的に軽減しました.
- これらの発見は,呼吸道感覚神経からのタキキニンの放出がブラジキニンの反応に関与することを示唆しています.
- タキキニン受容体アンタゴニストは,喘息治療の治療戦略として潜在性を示しています.
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