临床表现 临床表现
Derong Zeng1, Mu-Hsing Ho2, Teruaki Kawasaki3
1kyoto university, kyoto, kyoto, Japan.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
在认知障碍的老年人中,相角 (PhA) 和肌肉质量在一年内随着认知能力下降而下降. 监测PhA可能有助于早期发现患有阿尔茨海默病 (AD) 风险的人的恶化.
科学领域:
- 老年学是指老年学的学科.
- 神经学 神经学
- 生物物理学的生物物理.
背景情况:
- 以前的研究将较高的相角 (PhA) 与认知障碍的老年人更好的认知功能联系在一起.
- PhA变化和认知衰退之间的纵向关系仍然不清楚.
研究的目的:
- 调查随着时间的推移PhA变化与老年人认知能力下降的关系.
- 为了比较患有阿尔茨海默病 (AD) 和轻度认知障碍 (MCI) 的个体之间的这些变化.
主要方法:
- 招募了240名认知障碍的老年人,连续两年进行评估.
- 使用迷你精神状态检查 (MMSE) 和包括PhA在内的物理参数来测量认知功能.
- 采用线性混合效应模型来分析变化,并比较AD和MCI组.
主要成果:
- 在一年内观察到MMSE得分,肌肉质量和PhA的显著下降 (p <0.05).
- 人类指标比如BMI和脂肪百分比保持稳定.
- 虽然AD参与者基线MMSE较低,但他们的下降率与MCI参与者没有显著差异 (p = 0.061).
结论:
- 面临认知衰退风险的老年人经历了一年来MMSE,肌肉质量和PhA的下降.
- 除了认知评估之外,PhA监测可能有助于早期发现认知恶化.
- 研究结果表明,PhA是监测老年人群认知健康的相关生物标志物.
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