生物标志物 生物标志物
Firoza Z Lussier1, Guilherme Povala1, Guilherme Bauer-Negrini1
1University of Pittsburgh, Pittsburgh, PA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
该HEAD研究正在生成一个全面的tau-PET标记剂 (MK-6240,Flortaucipir,RO948,PI-2620) 数据集,以标准化体内tau病理量的量化. 这项研究将协调追踪器的结果,并开发工具,以便在各个研究中概括发现.
科学领域:
- 神经成像是一种神经成像.
- 生物标志物发现发现
- 阿尔茨海默氏症疾病研究研究
背景情况:
- 使用tau-PET标记剂进行体内tau病理量化的标准化,由于标记剂的特定特征,提出了挑战.
- 启动了HEAD研究,通过创建领先的纵向头对头数据集来应对这些挑战.
研究的目的:
- 为了协调多个tau-PET标记剂 (MK-6240,Flortaucipir,RO948,PI-2620) 的结果.
- 开发工具,在不同研究和临床试验中对tau-PET发现进行概括.
- 提供HEAD研究进展的最新情况.
主要方法:
- 一项涉及9个表演场所的多中心研究,旨在吸引不同年龄组和认知分类的620名参与者.
- 标准化临床评估,采集血液用于生物标志物储存和MRI采集.
- 头对头的tau-PET成像,每个参与者至少有两个标记物,与粉样蛋白-PET一起,数据处理均.
- 通过LONI的集中数据库和NCRAD的血液生物存储服务,有18个月的后续程序.
主要成果:
- 在26个月内招募了679名参与者,超过了9.5%的目标.
- 在最初的时间点收集了551名参与者的1489个头对头tau-PET扫描.
- 在95名参与者中启动了纵向数据收集,正在进行18个月的随访扫描.
- 包括人口统计,APOEε4载体和血生物标志物分布在内的队列的特征.
结论:
- 头部研究队列对于优化阿尔茨海默病 (AD) 成像生物标志物至关重要.
- 持续的横截面和纵向数据收集,以及血生物标志物测量,将产生重要的见解.
- 来自HEAD队列的发现将为AD研究中tau-PET标记物的临床应用提供必要的指导.
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