痴呆症 SomaSignal 测试 (dSST):一个20年痴呆症风险的血蛋白质预测器
Michael R Duggan1, Clare Paterson2, Yifei Lu3
1Laboratory of Behavioral Neuroscience, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|February 12, 2025
概括
一种新的蛋白质测试,即痴呆症索马信号测试 (dSST),可以提前20年预测痴呆症风险. 这种可扩展的测试性能优于现有的早期痴呆症检测生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物发现发现
- 蛋白质组学是指蛋白质组学.
背景情况:
- 目前痴呆症风险评估工具有限,通常在较短的时间内预测风险,并仅专注于阿尔茨海默病.
- 对于在几十年的临床前和临床前阶段量化痴呆风险的方法存在重大需求.
研究的目的:
- 开发和验证一种用于预测长期痴呆风险的新型蛋白质组测试.
- 与现有的生物标志物相比,评估痴呆症 SomaSignal 测试 (dSST) 的性能.
主要方法:
- 利用了高通量蛋白质组测定和机器学习,对来自"社区动脉样硬化风险研究" (n=11,277) 的数据进行了分析.
- 开发了痴呆症索马信号测试 (dSST) 作为痴呆风险的预测工具.
- 在两个独立的队列中验证了dSST,并在第三个队列中评估了其与认知衰退和神经病理学的关联.
主要成果:
- 在两个独立队列 (AUC:0.68-0.70) 的20年随访期间,dSST显示了中年痴呆风险的强有力的预测性表现.
- 当dSST与年龄相结合时,进一步改善了风险预测 (AUC:0.75-0.81).
- 在一个单独的队列中,dSST与纵向认知衰退,加速的大脑缩和神经病理学标志物升高相关.
结论:
- 痴呆症 SomaSignal 测试 (dSST) 是一个具有成本效益,可扩展和最少侵入性的预后工具.
- 在临床发病前20年,dSST可以量化痴呆症风险,其表现优于当前的血生物标志物.
- dSST有助于预测认知衰退和神经病理变化,为早期痴呆风险评估提供了有价值的预后援助.
更多相关视频
09:47Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches
Published on: December 15, 2023
941
06:23The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
32.1K
相关概念视频
Dementia
92
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....
92
Alzheimer's Disease: Overview
432
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...
432
