预防轻度认知障碍和阿尔茨海默病患者认知衰退的营养干预措施:综合网络元分析和门德尔随机化研究
Qian He1, Adam N Bennett1, Chuyun Zhang1
1Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region of China.
Clinical nutrition ESPEN
|March 27, 2025
概括
多成分营养干预措施对阿尔茨海默病和轻度认知障碍的认知衰退最有效. 这些干预措施可以减少炎症和氧化应激,提供神经保护.
科学领域:
- 营养神经科学 营养神经科学
- 老年学是一门学科.
- 神经退行性疾病 神经退行性疾病
背景情况:
- 认知障碍,特别是阿尔茨海默病 (AD) 和轻度认知障碍 (MCI),是由于人口快速老龄化而引起的日益严重的公共卫生问题.
- 营养干预被认为是一种有前途的非药物治疗方法,可以维持认知功能并减缓认知衰退.
研究的目的:
- 系统地评估各种营养干预措施预防认知障碍的有效性.
- 通过网络元分析 (NMA) 和门德尔随机化 (MR) 分析,阐明将营养干预与认知功能的生物学途径.
主要方法:
- 对双盲随机对照试验 (RCT) 进行了系统审查和NMA,以评估干预的有效性.
- 两种样本的MR分析研究了基因预测的营养水平和大脑衰老生物标志物之间的因果关系.
主要成果:
- 包括52项试验 (8452名参与者) 在内的NMA发现,多成分干预措施显著优越 (SMD = 2.03,P = 0.0002).
- MR 分析 (涉及大型 GWAS 数据集) 将多成分干预与降低的C反应蛋白 (CRP) 水平 (OR = 0.96,P = 0.014) 联系起来,这表明存在抗炎机制.
结论:
- 多成分营养干预措施是减轻MCI和AD患者认知衰退的最有效策略.
- 这些干预措施可以通过减少炎症和氧化应激来保护神经退行,在疾病早期可能有益.
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