七天的酸盐食补充剂从临床上显著改善了绝经后妇女的基本宏血管功能:一个随机,安慰剂控制,双盲,交叉临床试验
Jocelyn M Delgado Spicuzza1, Jigar Gosalia2, Liezhou Zhong3
1Integrative Vascular Physiology Lab, Integrative and Biomedical Physiology, Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, United States.
Frontiers in nutrition
|June 25, 2024
概括
七天的甜菜汁 (BR) 酸盐补充剂改善了绝经后妇女的休息内皮功能. 然而,这种内皮保护在24小时内就消失了,这表明时间对酸盐介导的益处至关重要.
科学领域:
- 心血管健康 心血管健康
- 内分泌学 在内分泌学.
- 营养科学 营养科学
背景情况:
- 心血管疾病 (CVD) 是妇女死亡的主要原因,绝经后风险增加.
- 在甜菜汁中发现的食酸盐是一种潜在的非药理方法,可以增强氧化的产生并改善内皮功能,特别是在老年人群中.
研究的目的:
- 通过甜菜汁进行短期食酸盐补充对静止大血管内皮功能的影响.
- 评估不同绝经阶段的绝经后妇女对缺血-再输液 (IR) 损伤的内皮抵抗力.
主要方法:
- 一个随机的,安慰剂控制的,双盲的交叉试验,涉及早期和晚期的绝经后妇女.
- 参与者每天饮用富含酸盐或缺乏酸盐的甜菜汁,持续7天.
- 在补充药物之前和之后,以及在IR损伤后,测量了支臂动脉流介导扩张 (FMD).
主要成果:
- 与安慰剂相比,七天的富含酸盐的甜菜汁显著增加了休息时的口炎.
- 两种治疗方案都没有防止在IR损伤后口炎的下降.
- 酸盐补充剂的内皮保护作用在最终剂量后的24小时内减弱.
结论:
- 饮食中通过甜菜汁补充酸盐可以改善绝经后妇女的内皮功能.
- 酸盐补充剂的时间相对于缺血-再输液损伤和时代生物学因素影响其有效性.
- 甜菜汁提供的短期内皮保护是短暂的,持续时间不到24小时.
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