オピオイド薬とデルタ受容体媒介性心筋膜の保護
P E Benedict1, M B Benedict, T P Su
1University of Michigan Health System, Ann Arbor, MI 48109-0048, USA. pbenedic@umich.edu
Circulation
|November 24, 1999
まとめ
モルヒンのようなデルタオピエート薬は,心臓外科手術中に心筋の保護を提供し,結果を改善します. この保護は標準的な心臓麻痺に加えて,心臓の保存のための臨床的利点を示唆しています.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
- 生理学 生理学とは
背景:
- 低温性心筋梗塞は心臓外科手術において極めて重要であるが,その成功を制限する.
- 動物は寒い環境で生き残るために,オピエット化合物によって調節される冬眠を利用します.
- 冬眠誘導トリガーとデルタオピエートペプチドは,臓器保存の可能性を示しています.
研究 の 目的:
- デルタオピアート受容体結合薬が,低温性イシュケミア中の心臓を保護できるかどうかを調査する.
- これらの薬剤が,冬眠誘導トリガーに似た心筋膜の保護を提供しているかどうかを判断する.
主な方法:
- 隔離されたウサギの心臓を34°Cのイシュケミアで2時間放置した.
- 心臓は心臓麻痺のみまたはデルタオピエート薬 (フェンタニル,モルヒン,ブプレノルフィン,ペンタゾシン) で治療され,その後心臓麻痺が続いた.
- 機能的指数と代謝指数は,再輸注後の比較を行った.
主要な成果:
- モルヒネ,ブプレノルヒネ,ペンタゾシン群は,心臓麻痺のみと比較して,開発された圧力と酸素消費のより良い保存を示しました.
- これらの機能的改善は,再注血後の前血性病値のパーセントとして評価されました.
結論:
- デルタオピエート薬は,心筋縮の影響を増幅し,心筋縮の有意な保護を与えます.
- この発見は,心臓外科手術と臓器保存におけるデルタオピエート薬の潜在的な臨床応用を示唆しています.
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