聚醇摄入量和老年人痴呆和认知衰退的风险:主要成分分析方法
Stelios Chatzispyrellis1, Elizabeth Fragopoulou1, Eirini Mamalaki2
1Department of Nutrition and Dietetics, Harokopio University, Athens, Greece.
The Journal of nutrition
|June 2, 2025
概括
饮食中富含联素,黄醇和异黄的多醇模式与老年人的认知衰退速度减慢和痴呆风险降低有关. 这种在蔬菜中发现的特定模式显示出有前途的大脑健康益处.
科学领域:
- 营养神经科学 营养神经科学
- 老年学是指老年学的学科.
- 流行病学 流行病学
背景情况:
- 饮食中的多与大脑健康有关,但它们对人类的综合作用仍未得到充分研究.
- 了解特定的饮食多模式 (PPs) 对于阐明它们对认知功能的影响至关重要.
研究的目的:
- 调查饮食中的多模式 (PPs) 与痴呆症发病率之间的联系.
- 在老年人群中检查PP和随时间推移的认知变化之间的关系.
主要方法:
- 对1041名没有痴呆症的老年人进行了长度研究 (平均年龄为73.1岁).
- 通过食物频率调查问卷收集的饮食数据;通过主要成分分析分析的多类来识别PPs.
- 使用概括估计方程评估认知衰退;使用考克斯回归模型评估痴呆风险.
主要成果:
- 第三种聚烯模式 (PP3),富含蔬菜中的类,黄类和异黄类,与较慢的认知衰退有关.
- PP3摄入量增加1个单位与全球认知评分每年下降速度减缓0.9%相关.
- 与第一四分位数相比,更高的PP3摄入量 (第三四分位数) 与发生性痴呆的风险降低71%有关.
结论:
- 在希腊老年人中,高干素,黄醇和异黄的饮食模式与痴呆症风险降低和认知能力下降有关.
- 这些发现凸显了联合多摄入对大脑健康的潜在益处.
- 建议在多种不同人群中进一步验证.
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