運動後筋力低下症は,冠動脈疾患の患者の神経ペプチドYの増加と関連しています
L Gullestad1, B Jorgensen, T Bjuro
1Department of Cardiology, Rikshospitalet University Hospital, Oslo, Norway. lagulles@online.no
Circulation
|August 30, 2000
まとめ
ニューロペプチドY (NPY) レベルは,冠動脈疾患の患者の運動誘発性心筋動脈不全と相関しています. より高いNPYレベルは,より大きなSTセグメントうつ状態とより長い回復時間に関連しており,NPYを示唆しています.
科学分野:
- 心血管生理学 心血管の生理学
- 神経内分泌学の神経内分泌学
背景:
- 神経ホルモンは,運動中のおよび運動後の血管調子に影響を与えます.
- ニューロペプチドY (NPY) は,ノレピネフリンと同時に放出され,強力な血管収縮剤です.
研究 の 目的:
- 神経ペプチドY (NPY) と,冠動脈疾患の患者における運動誘発性心筋不全症との関連を調査する.
主な方法:
- 症状制限運動テストは,アンギナ・ペクトリスの男性患者29人に実施されました.
- STセグメントの変化は,従来の方法とHR調整された斜面/回復ループを使用して分析されました.
- プラズマの神経ホルモンレベル (NPY,NE,エピネフリン,NT-proANP,ビッグエンドセリン) は,運動前,運動中,運動後の測定を行った.
主要な成果:
- 運動により,STセグメントが著しく低下し,プラズマNPY,ノルエピネフリン (NE),エピネフリン濃度が上昇した.
- NPYとNT-proANPは,最大運動時にピークに達したNEとエピネフリンとは異なり,運動後4分にピークに達しました.
- 最大NPY増加は,STセグメントのうつ,ST赤字,および運動後のSTうつ病の持続時間と有意に相関しています.
結論:
- プラズマNPYレベルは,冠動脈疾患患者の運動後のSTセグメントうつ病の重度および持続時間と相関しています.
- NPYは,この患者集団における心筋不全への寄与に役割を果たす可能性があります.
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