身体活动与大脑白质强度过高在老年人与抑郁症状和轻度记忆障碍之间的关系:一个横截面研究
Shotaro Otsuka1, Kiyoshi Kikuchi2,3, Yasufumi Takeshita4
1Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
Frontiers in aging neuroscience
|February 28, 2024
概括
定期的适度体力活动和更快的步行速度与老年人白质强度 (WMH) 的降低有关. 像IL-6这样的较高的炎症标志物与WMH增加有关,这表明大脑健康状况较差.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 预防医学 预防医学
背景情况:
- 大脑白质过强度 (WMH) 在衰老中很常见,并与神经系统疾病有关.
- 增加WMH体积意味着老年人的大脑健康状况下降.
- 抑郁症状 (DS) 和轻度记忆障碍 (MMI) 在老年人群中很普遍.
研究的目的:
- 调查DS和MMI的老年人中WMH体积和身体活动之间的关联.
- 在这个人口群体中确定与WMH数量相关的因素.
- 探索身体活动,生物标志物和大脑健康之间的关系.
主要方法:
- 57名患有DS和MMI的参与者 (65岁以上) 接受了MRI进行WMH量化.
- 使用加速度计测量身体活动 (平均每日活动,步骤) 超过2周.
- 评估了血液生物标志物 (皮质醇,IL-6,IGF-1,BDNF),运动和认知功能.
主要成果:
- 更快的最大步行速度和更适度的体力活动与较小的WMH体积相关.
- 较高的血清IL-6水平与较大的WMH体积有关.
- 没有发现WMH体积和每日步骤,低身体活动,认知功能或其他生物标志物之间存在显著的关联.
结论:
- 较高的血液炎症标志物,较少的适度体力活动和较慢的步行速度与增加的WMH有关.
- 研究结果为老年患痴呆风险的成年人保持大脑健康提供了洞察力.
- 结果可能有助于制定预防性大脑健康策略.
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