低循环阿德罗宾度预测社区居住的老年人认知能力下降的风险增加
Geetika Aggarwal1,2,3, John E Morley2, Bruno Vellas4
1Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University, St. Louis, MO, USA.
GeroScience
|May 26, 2023
概括
高血阿德罗水平与老年人认知能力下降的风险降低有关. 这项研究表明,阿德罗可能在预防痴呆症进展方面发挥保护作用.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 老年学是一门学科.
背景情况:
- 阿德罗是一种分泌的,在人类大脑组织中表达高.
- 氨酸水平与痴呆的RNA和蛋白质组风险指标相关.
- 血阿德罗宾度被研究为潜在的认知衰退生物标志物.
研究的目的:
- 为了确定血阿德罗宾度是否预测了老年人认知能力下降的风险.
- 检查阿德罗水平与随时间而变化的认知功能之间的关系.
- 探索阿德罗宾水平与神经退行症标志物之间的关联.
主要方法:
- 对452名多域阿尔茨海默氏症预防试验参与者的血阿德罗宾度的分析.
- 用复合认知分数 (CCS) 评估的认知能力跨越记忆,语言,执行功能和定向领域.
- 考克斯比例危险回归和三位数分析用于检查阿德罗宾水平和认知衰退 (∆CCS) 之间的关系.
主要成果:
- 认知能力下降的风险随着血阿德罗宾度的增加而显著降低 (HR=0.873,P=0.018).
- 在阿德罗宾三位体 (P=0.01) 之间观察到∆CCS的显著差异,最高三位体的下降最少.
- 血Aß42/40比率和神经纤维光链水平在阿德罗宾三角体之间有显著差异,与降低认知能力下降风险保持一致.
结论:
- 较高的循环阿德罗宾水平与社区居住的老年人认知能力下降有关.
- 阿德罗可以作为一种预防认知障碍和痴呆症的保护因素.
- 需要进一步的研究来阐明阿德罗宾对认知健康的因果机制和治疗潜力.
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