从MCI发展为阿尔茨海默病的风险因素和预测模型
Chang Li1, Shike Wang2, Yuwei Xia3
1Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, 400030 China.
Neuroscience
|December 7, 2024
概括
APOE ε4基因组通过涉及P-tau,Aβ1-42和缩的途径促进轻度认知障碍 (MCI) 转化为阿尔茨海默病 (AD). 一个预测模型在识别有风险的个体方面取得了很高的准确性.
科学领域:
- 神经科学是一个神经科学.
- 生物医学数据分析
背景情况:
- 轻度认知障碍 (MCI) 转化为阿尔茨海默病 (AD) 是多因素的,原因途径不清楚.
- 了解这些途径对于早期检测和干预至关重要.
研究的目的:
- 调查影响MCI与AD进展的因素之间的因果关系.
- 开发一个准确的预测模型,用于MCI转换为AD.
主要方法:
- 利用来自阿尔茨海默病神经影像计划的162名MCI患者 (68人转换为AD) 的数据.
- 从T1加权的MRI扫描中提取特征,并使用mRMR和LASSO进行特征选择.
- 应用因果结构发现和回归分析来检查APOE ε4,P-tau,Aβ1-42和缩得分之间的关系.
主要成果:
- 已确定APOE ε4等位基因是MCI转化为AD的关键促进体.
- 确定了三个独立的进展途径:P-tau,Aβ1-42和皮质缩.
- 结合这些因素的综合预测模型实现了高精度 (AUCtrain=0.918,AUCtest=0.908).
结论:
- 阐明了MCI转化为AD的启动因子和途径.
- 为预测MCI进展建立了一个高度准确的多预测器名录.
更多相关视频
06:52Fabrication of Amyloid-β-Secreting Alginate Microbeads for Use in Modelling Alzheimer's Disease
Published on: July 6, 2019
9.3K
09:45Motor and Hippocampal Dependent Spatial Learning and Reference Memory Assessment in a Transgenic Rat Model of Alzheimer's Disease with Stroke
Published on: March 22, 2016
10.2K
相关概念视频
Alzheimer's Disease: Overview
447
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...
447
Dementia
96
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
The progression of dementia is generally gradual....
96
Alzheimer's Disease: Treatment
163
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...
163
Cognitive Development During Adulthood
54
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,...
54
