红色大可以改善饮食后代谢指数和认知功能,在超重或肥胖的老年人中
Di Xiao1, Barbara Shukitt-Hale2, Grant A Rutledge2
1Center for Nutrition Research and Institute for Food Safety and Health, Illinois Institute of Technologyhttps://ror.org/037t3ry66, Chicago, IL, USA.
The British journal of nutrition
|January 15, 2026
概括
红树 (RRB) 补充剂改善了老年人的代谢健康和认知功能. 这种饮食干预减少了食后代谢压力和神经炎症标志物,支持RRB.
科学领域:
- 营养科学 营养科学
- 神经科学是一个神经科学.
- 代谢健康 代谢健康
背景情况:
- 代谢失调,通常由高碳水化合物/脂肪饮食恶化,与认知和运动缺陷有关.
- 富含多醇的果,如红色树 (RRB),正在研究其潜在的健康益处.
- 超重/肥胖的老年人特别容易发生代谢和认知衰退.
研究的目的:
- 为了评估红树 (RRB) 在老年人摄入的急性代谢和认知影响.
- 评估RRB对食后代谢标记,神经炎症和认知表现的影响.
主要方法:
- 一个随机的,单盲的,受控的交叉研究,涉及36名超重/肥胖的老年人 (55-70岁).
- 参与者吃了一顿高碳水化合物食物,或没有25克冷干燥的RRB粉末.
- 评估了血葡萄糖,胰岛素,三甘油 (TAG),IL-6,神经炎症标志物 (体外),以及认知功能.
主要成果:
- RRB补充剂显著降低了峰值葡萄糖,食后胰岛素反应和整体胰岛素水平.
- 来自RRB消费者的血清在微质细胞中减弱了脂聚糖 (LPS) 诱导的氧化 (NO),iNOS和COX-2表达.
- 认知表现有所改善,在配对协同学习和空间工作记忆任务中得分提高.
结论:
- 急性红树 (RRB) 补充剂有效地减轻了饭后代谢压力,并减少了神经炎症标志物.
- 在老年人中,RRB摄入量显著改善了认知表现.
- 这些发现支持RRB作为一种饮食策略的潜力,以支持老年人群的认知健康.
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