阿尔茨海默氏病谱中的认知-眼睛-大脑连接由多模式成像揭示
Yan Shi1, Tingting Shen2, Su Yan1
1Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Journal of magnetic resonance imaging : JMRI
|June 29, 2025
概括
阿尔茨海默病的谱系障碍显示了大脑结构,功能和眼睛指标之间的联系. 早期的认知衰退可能会揭示认知-眼睛-大脑联系.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 放射学 放射学是一门学科.
背景情况:
- 在阿尔茨海默病 (AD) 谱系障碍中,认知功能,眼睛健康和大脑变化之间的关系尚未完全理解.
- 现有的研究还没有明确地将这些因素与认知衰退的各个方面联系起来.
研究的目的:
- 调查认知状态,视网膜成像指标和阿尔茨海默氏病频谱中个体的大脑结构和功能改变之间的关联.
- 通过检查眼睛和大脑变化来探索潜在的认知衰退早期指标.
主要方法:
- 一项前性研究涉及健康对照组 (HC),主观认知衰退 (SCD),轻度认知障碍 (MCI) 和阿尔茨海默病 (AD) 组.
- 使用3TMRI (BRAVO和fMRI) 进行大脑体积和功能分析 (FALFF,ReHo).
- 采用光连贯断层扫描血管学 (OCTA) 和深度学习模型 (FARGO) 来分析视网膜特征 (FAZ,RNFL,GCL-IPL厚度).
- 多变量线性回归被用来比较跨组的认知-眼睛-大脑关联.
主要成果:
- 在MCI患者中,缩小时间FALFF与减少RNFL厚度和增加FAZ面积相关.
- 在阿尔茨海默病患者中,尾ReHo减少与FAZ区域扩大有关.
- SCD个体表现出与视网膜生物识别相关的广泛皮质加厚,特别是减少了GCL-IPL厚度.
结论:
- 大脑结构和功能与整个阿尔茨海默氏病谱中的认知状态和视网膜生物识别有关.
- 认知-眼-大脑连接可能在认知衰退的早期阶段被检测出来,例如SCD.
相关概念视频
Alzheimer's Disease: Overview
678
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
678
Brain Imaging
320
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
320
Alzheimer's Disease: Treatment
265
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
265


