饮食中素摄入量与老年人的认知功能之间的关联:来自NHANES 2011-2014年的证据
Xia Shen1,2, Long Yang3, Yuan Yuan Liu1,2
1Department of Nursing Affiliated Hospital of Jiangnan University Wuxi China.
Food science & nutrition
|August 14, 2023
概括
饮食中较高的酸摄入量与美国老年人认知障碍风险降低有关. 这项研究表明,氨酸可能在维持老年人的认知功能方面发挥作用.
科学领域:
- 营养科学 营养科学
- 老年学是一门学科.
- 认知神经科学 认知神经科学
背景情况:
- 饮食中氨酸与认知功能之间的不一致的关联突出了知识差距,特别是在美国门诊患者群体中.
- 认知能力下降是老年人群的一个重大问题,需要对饮食等可修改因素进行研究.
研究的目的:
- 调查60岁及以上的美国成年人饮食中酸摄入量与认知表现之间的关联.
- 为了确定更高的氨酸消费是否与这个人口群体中更好的认知功能结果相关.
主要方法:
- 利用了2011-2014年国家健康和营养检查调查 (NHANES) 2523名参与者的数据.
- 使用CERAD单词学习 (CERAD-WL),CERAD延迟回忆 (CERAD-DR),动物流利性测试 (AFT) 和数字符号替换测试 (DSST) 评估认知功能.
- 采用后勤回归,受限立方线模型和分层分析来评估素摄入四分位数和认知障碍.
主要成果:
- 超过一半 (52.52%) 的参与者表现出认知障碍.
- 与摄入量最低的群体 (Q1) 相比,较高的氨酸摄入量 (Q3和Q4) 与认知障碍的风险降低有显著的关联.
- 尼亚摄入量与所有认知测试中的表现差有负面关联,观察到L形剂量-反应关系.
结论:
- 饮食中氨酸摄入量与美国老年人认知障碍风险较低有关.
- 研究结果表明,氨酸在维持老年人的认知功能方面具有潜在的保护作用.
- 与碳水化合物和胆固醇摄入量的相互作用表明,饮食对尼亚的认知影响有复杂的影响.
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