阿尔茨海默病成像生物标志物与NIH工具箱认知电池上的表现之间的关系 中年后期 西班牙裔
Mouna Tahmi1, Brady Rippon1, Priya Palta1,2
1Departments of Medicine.
Alzheimer disease and associated disorders
|November 26, 2024
概括
阿尔茨海默病 (AD) 生物标志物如粉样蛋白和蛋白与中年后期的认知表现没有相关性. 结构性大脑变化,如白质强度过高,与认知功能有关.
科学领域:
- 神经学 神经学
- 神经成像是一种神经成像.
- 认知科学 认知科学
背景情况:
- 国家卫生研究院工具箱认知电池 (NIHTB-CB) 是阿尔茨海默病 (AD) 研究的宝贵工具.
- 了解早期的认知变化对于AD研究至关重要.
研究的目的:
- 用NIHTB-CB在中年后期的成年人中研究AD生物标志物和认知表现之间的关系.
- 探索AD病理学的神经成像标志物如何与认知功能相关.
主要方法:
- 对334名西班牙裔参与者的横截面分析 (平均年龄~64岁).
- 神经成像技术 (3T MRI) 评估了AD相关区域的白质超强度 (WMH),心脏病发作和皮质厚度 (CT).
- 定子发射断层扫描 (PET) 测量了粉样蛋白和tau负荷.
主要成果:
- 皮层厚度降低 (CT) 和心脏病发作与口头阅读识别和结晶认知复合分数表现较差有关.
- 较低的CT和增加的WMH与减少的模式比较处理速度相关.
- 粉样蛋白和蛋白水平与NIHTB-CB性能没有关联.
结论:
- 粉样蛋白和蛋白病理,阿尔茨海默病的关键标志,与NIHTB-CB表现在这个中年后期的人群中没有相关性.
- 结构性大脑变化 (WMH,心脏病发作,CT) 与认知表现有关,这表明它们在早期认知衰退中的潜在作用.
- 需要进一步的纵向研究来确定AD生物标志物是否会随着时间的推移影响NIHTB-CB的性能.
更多相关视频
09:38Generalized Psychophysiological Interaction PPI Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease
Published on: November 14, 2017
14.8K
07:30Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
3.0K
相关概念视频
Alzheimer's Disease: Overview
448
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...
448
Cognitive Development During Adulthood
55
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
55
