饮食中较高的酸盐摄入量与老年人更好的认知功能有关:来自横截面研究的证据
Jiayu Tu1, Jun Zhang1, Gang Chen1
1Department of Anesthesiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China.
Frontiers in aging neuroscience
|April 14, 2025
概括
饮食中较高的丁酸盐摄入量与老年人更好的认知功能有关. 这一发现表明丁酸盐在维持大脑健康和认知表现方面可能发挥作用,随着个体的年龄增长.
科学领域:
- 神经科学是一个神经科学.
- 营养科学 营养科学
- 老年学是一门学科.
背景情况:
- 短链脂肪酸酸在临床前研究中显示在增强记忆和认知功能方面具有潜力.
- 提高的丁酸盐水平与老年人认知障碍的阿尔茨海默病生物标志物减少相关.
研究的目的:
- 为了研究饮食中的丁酸盐消费与老年人认知表现之间的关系.
- 为了确定较高的丁酸盐摄入量是否与60岁及以上个体的更好的认知功能有关.
主要方法:
- 从美国国家健康和营养检查调查 (NHANES) (2011-2014) 中对2078名参与者的横截面分析.
- 通过24小时回忆评估食黄酸盐摄入量;使用动物流利性测试 (AFT),数字符号替代测试 (DSST) 和CERAD记忆子测试评估认知功能.
- 多变量回归模型和通用添加模型 (GAM) 用于分析关联,并进行子组分析以确认稳定性.
主要成果:
- 饮食中较高的酸盐消费与在DSST,AFT和CERAD-Immediate Recall测试中的优异表现正相关.
- 与最低四分位数相比,酸盐摄入量最高四分位数的参与者表现出明显更好的认知评分,即使在调整了混因素后.
- 发现身体质量指数 (BMI) 和高血压影响了丁酸盐摄入量与认知表现之间的关联.
结论:
- 在60岁及以上的个人中,饮食中增加的酸盐摄入量与增强的认知功能有关.
- 这些发现表明,丁酸盐可能在老化过程中起到保护认知功能的作用.
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