在社区居住的老年人中,代谢特征和认知脆弱之间的关联:一项为期八年的队列研究
Te-Hsuan Huang1, Yen-Ching Chen2, Ching-Yu Lin3
1Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei 100, Taiwan.
Mechanisms of ageing and development
|November 28, 2025
概括
代谢特征,如脂肪酸链和酸盐,与随着时间的推移与认知脆弱性有关. 这些关联可能受到apolipoprotein E (APOE) 基因型的影响,这表明潜在的预测标志物.
科学领域:
- 老年学是一门学科.
- 代谢学 代谢学 代谢学
- 神经科学是一个神经科学.
背景情况:
- 认知虚弱,身体虚弱和轻度认知障碍的结合,在老年人群中越来越令人担忧.
- 代谢特征与认知脆弱的发展之间的时间关系仍未得到充分研究.
- 识别认知虚弱的早期生物标志物对于及时干预和管理至关重要.
研究的目的:
- 调查基线血代谢概况与认知脆弱性进展之间的纵向关联.
- 探索性别,教育和阿波蛋白E (APOE) 基因型等因素如何改变这些代谢关联.
- 识别潜在的血代谢物生物标志物,在八年内预测认知虚弱.
主要方法:
- 一项为期八年的前性队列研究,涉及605名非痴呆症老年人.
- 认知虚弱的两年评估,定义为身体虚弱加上轻度认知障碍.
- H核磁共振光谱用于基线血代谢物分析和通用线性混合模型用于纵向关联分析.
主要成果:
- 基线脂肪酸链 (CH2CH2CC) Z-score增加最初与认知脆弱性恶化有关,但随着时间的推移,这种影响减弱了.
- 基线pyruvate Z-score的增加与认知脆弱性进展的减少有关.
- 这些关联在男性,受过高等教育的个人和非APOE ε4载体中更为明显,观察到显著的相互作用.
结论:
- 血代谢物,特别是脂肪酸链和酸盐,显示出作为认知脆弱的纵向生物标志物的潜力.
- APOE ε4基因型显著改变了这些代谢物和认知脆弱性进展之间的关系.
- 这些发现突出了代谢健康,遗传学和认知衰老之间的相互作用,为个性化风险预测提供了途径.
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