APOE-ε4-依赖性与认知衰退之间的关联:MIND随机对照试验的发现
Xiaoran Liu1, Frank M Sacks2, Todd Beck1
1Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL; Department of Internal Medicine, Rush University Medical Center, Chicago, IL.
The American journal of clinical nutrition
|August 28, 2025
概括
在具有APOE- ε4基因变异的个体中,较高的血类胡卜素水平可能会减缓认知能力下降. 这一发现表明一种减轻阿尔茨海默病遗传风险的潜在饮食策略.
科学领域:
- 神经科学
- 营养科学
- 遗传学
背景情况:
- 预防阿尔茨海默病是一个公共卫生问题.
- 饮食中的胡卜素在认知衰退中的作用,特别是对于APOE-ε4载体,尚不清楚.
研究的目的:
- 调查APOE-ε4基因型是否影响血液中胡卜素水平与整体认知功能之间的关联.
- 探索老年人群认知健康的潜在饮食干预措施.
主要方法:
- 在地中海DASH干预神经退行性延迟 (MIND) 试验中的分析 (N=442).
- 通过综合评分评估了全球认知功能的3年变化.
- 测量了基线血类胡卜素水平和APOE- ε4基因型.
- 使用混合效应模型测试APOE-ε4状态和胡卜素水平在认知轨迹之间的相互作用.
主要成果:
- 在APOE- ε4携带者中,较高的血类胡卜素与更好的整体认知得分相关 (P=0. 009).
- 特定的胡卜素,包括β-胡卜素,α-胡卜素,黄素,烯和β-卜素,与携带者的认知功能有显著的关联.
- 在非携带者中,相关性较弱或不显著.
结论:
- 血中胡卜素水平升高与APOE- ε4载体的认知衰退速度减缓有关.
- 饮食中的胡卜素可能有助于抵消与APOE- ε4基因型相关的认知障碍的遗传倾向.
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