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Mechanical Micronization of Lipoaspirates for Regenerative Therapy
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心臓膜の脂肪酸組成は,心筋の酸素消費と収縮機能のポストイシュケミック回復を調節する
Salvatore Pepe1, Peter L McLennan
1Cardiac Surgical Research Unit, Alfred Hospital and Baker Medical Research Institute, Monash University Faculty of Medicine, Melbourne, Australia.
Circulation
|May 16, 2002
まとめ
ダイエット用魚油は,マウスの心臓機能を改善し,心筋の酸素消費を減少させた. これは,魚油であることを示唆しています.
科学分野:
- 心血管科学 心血管科学
- 栄養科学とは,栄養科学である.
- 生理学 生理学とは
背景:
- 定期的な魚の摂取は,心血管疾患の減少と関連しています.
- 魚油は心臓のフォスフォリピド脂肪酸の組成を変更し,抗不律性を示す.
- この研究では,食用魚油が心室血動力学と心筋酸素消費量 (MVO2) に与える影響を調査した.
研究 の 目的:
- 食事中の魚油が心臓の血液動力学に与える影響を評価するために.
- 心筋の酸素消費量 (MVO2) に対する魚油の影響を評価する.
- 発血不全と再注血に対する心臓の反応における魚油の役割を決定する.
主な方法:
- 雄ウイスターネズミは,n-3 PUFA (魚油),n-6 PUFA,または飽和脂肪 (SAT) が豊富な食事を16週間に渡って与えられました.
- 隔離された作業心臓は,さまざまな作業負荷や低流量性不血症に晒され,その後に再注入が行われました.
- 心筋の酸素消費量 (MVO2) と心臓機能マーカーを測定した.
主要な成果:
- n-3 PUFA (魚油) を摂取したネズミの心臓は,MVO2が低く,冠動脈 perfusion reserveが高く,ワークロードで心電量が向上した.
- n-3 PUFA ダイエットにより,不全性マーカー (酸性,K+,乳酸,CK) が低下し,再注血後の収縮性回復が強化されました.
- SATを摂取したネズミの心臓はMVO2が高く, perfusion reserveが低く,MVO2の機能が悪かった. 食事によるMVO2への影響は,KClの停止やルテニウムレッドによって廃止されたが,ライオノジンでは無効であった.
結論:
- ダイエット用魚油は,心臓の機能を直接強化し,不血症/再注血に対する反応を改善します.
- n-3 PUFAの消費は,ある作業負荷に対してMVO2を低下させ,発血後の回復を促進します.
- これらの直接的な心筋動脈への影響は,魚の摂取がもたらす心血管上の利点に寄与する可能性があります.
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