生物标志物 生物标志物
Hsin-Jou Wang1, Yi-Ting Hsieh2, Ting-Yu Wu3
1Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
视网膜血管复杂度较高,以碎形维度 (Df) 衡量,与老年人更好的注意力有关. 这种眼睛健康指标可以预测认知功能,特别是在右眼.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 大脑和眼睛共享血管起源和代谢需求,使视网膜血管成为认知健康的潜在指标.
- 认知障碍在老年人群中越来越令人担忧,需要早期预测标志物.
- 视网膜血管碎形维度 (Df) 提供了血管复杂性的可量化的衡量标准.
研究的目的:
- 调查视网膜血管碎片维度 (Df) 与社区居住的老年人认知功能之间的纵向关联.
- 探索与视网膜血管复杂性相关的特定领域认知表现.
- 解决现有研究中关于眼睛血管和认知之间长期联系的缺陷.
主要方法:
- 利用了前性台湾老年流行病学研究倡议 (TIGER) 队列研究 (2015-2017) 的数据.
- 包括276名老年人 (≥65岁) 和分析视网膜图像,使用 fundus 摄像头通过盒子计数方法计算Df.
- 评估全球认知和特定领域的功能 (记忆,注意力,口语流,执行功能) 使用标准化测试,用通用线性混合模型进行分析.
主要成果:
- 在较高的右眼Df和更好的注意力表现 (β=0.28) 之间观察到一个显著的关联.
- 这种关联在女性,年轻参与者和受过高等教育的人群中更为明显.
- 对于其他认知领域或当Df被分析为连续变量时,没有发现任何显著的关联.
结论:
- 更高的视网膜血管复杂性 (Df) 与老年人注意力表现的改善有关,特别明显的是右眼.
- 视网膜血管Df可以作为潜在的生物标志物用于认知功能,特别是注意力.
- 需要进一步的研究来证实这些发现,并阐明连接眼血管和认知健康的潜在机制.
相关概念视频
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