用L-carnitine治疗的患有外周血管疾病的患者的步行距离增加:双盲交叉研究
G Brevetti1, M Chiariello, G Ferulano
1Department of Medicine, Second Medical School, University of Naples, Italy.
Circulation
|April 1, 1988
概括
在患有外周血管疾病的患者中,补充L-carnitine显著改善了步行距离. 这种治疗也有利地改变了受影响肌肉的运动诱导的代谢变化.
科学领域:
- 心血管医学 心血管医学
- 生物化学 生物化学
- 运动生理学 运动生理学
背景情况:
- 周围血管疾病 (PVD) 由于缺血损害了行走能力.
- 目前用于PVD的治疗方法存在局限性.
- L-卡尼丁在细胞能量代谢中发挥作用.
研究的目的:
- 评估L-carnitine在改善PVD患者的步行距离方面的疗效.
- 在PVD中研究L-卡尼丁在运动期间对肌肉新陈代谢的影响.
主要方法:
- 这是一项双盲交叉研究,对20名PVD患者进行.
- 患者接受了口服L-卡尼丁 (2g两次) 或安慰剂3周,然后跨越.
- 跑步机测试测量了步行距离;进行了肌肉活检和代谢评估 (乳酸盐,酸盐).
主要成果:
- 与安慰剂 (174 +/- 63 m) 相比,L-卡尼丁显著增加了绝对步行距离 (306 +/- 122 m).
- 肌肉活检显示,在L-卡尼给药后,总卡尼水平增加.
- 卡尼丁减少了运动引起的乳酸增加,并加速了乳酸/酸盐比率的恢复.
结论:
- 在患有外周血管疾病的患者中,L-卡尼丁有效改善运动能力.
- 似乎L-卡尼丁可以增强肌肉能量代谢,减轻运动引起的代谢障碍.
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