急性肝素给药对健康年轻成年人葡萄糖的厚度和内皮功能的影响
Colin J Gimblet1, Jackson W Ernst1, Kyle D Bos1
1Department of Health and Human Physiology, University of Iowa, Iowa City, Iowa, United States.
Journal of applied physiology (Bethesda, Md. : 1985)
|December 21, 2023
概括
在健康的年轻成年人中,急性氨酸给药并没有降低内皮糖体质或损害血管功能. 这表明,肝素不适合在人类中研究葡萄糖的降解.
科学领域:
- 血管生物学 血管生物学
- 生物化学 生物化学
背景情况:
- 内皮糖核对血管健康至关重要.
- 已知氨酸会损害动物模型中的葡萄糖.
- 它对人类葡萄糖和血管功能的影响尚不清楚.
研究的目的:
- 为了研究单次氨酸剂量是否会降解人体内皮质葡萄糖.
- 评估对血管内皮功能的影响.
- 为了确定肝素是否可以用于研究体内葡萄糖的变化.
主要方法:
- 健康的成年人 (n=19) 接受了5000个单位的肝素玻尿酸.
- 测量了血中的syndecan-1和heparan硫酸盐.
- 通过透边界区域 (PBR) 评估的葡萄糖体厚度.
- 通过手臂动脉流媒扩张 (FMD) 测量血管功能.
主要成果:
- 血葡萄糖的成分 (syndecan-1,海帕兰硫酸盐) 没有显著变化.
- perfused 边界区域 (葡萄糖的厚度) 没有改变.
- 流介导扩张或血亚酸盐没有显著变化.
结论:
- 单次氨酸剂量不会降低健康的年轻成年人的内皮糖体质.
- 在这个人群中,氨酸的使用不会诱导血管内皮功能障碍.
- 目前使用氨酸的方法不足以研究人类的急性葡萄糖分解.
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