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阿尔茨海默氏症成像联盟
Cristina Sánchez1, Linda Zhang1, Jesús Silva-Rodríguez1
1CIEN Foundation, Reina Sofia Alzheimer Center, ISCIII, Madrid, Madrid, Spain.
在没有认知障碍的个体中,血p-tau217水平升高预测了阿尔茨海默氏症长期的神经退行. 这种生物标志物可以识别出可能患上阿尔茨海默病的个体,从而有助于早期干预.
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:
- 血p-tau217是一种新兴的阿尔茨海默病 (AD) 生物标志物.
- 它预测认知不受损 (CU) 个体的认知衰退.
- 血p-tau217升高的长期神经退行性影响尚不清楚.
研究的目的:
- 描述横截面和纵向灰色物质缩模式.
- 为了在CU个体中研究这些模式,具有高血p-tau217.217.的个体.
- 评估与长期神经退行性轨迹的关联.
主要方法:
- 1030 CU来自瓦莱卡斯项目队列的个人.
- 基线和长达十年的纵向MRI和临床数据.
- 测量了血p-tau217;个体被分类为p-tau217+或p-tau217-.
- 使用线性混合效应模型对灰色物质缩的ROI和voxel分析.
主要成果:
- 16.8%的参与者是p-tau217+.
- p-tau217+个体显示出基线中叶 (MTL) 缩,特别是在海马体.
- 在长度上,p-tau217+个体表现出更快的MTL缩,这部分介于认知衰退.
- 加速缩扩展到侧面部区域,胰岛和带膜皮层.
结论:
- 血p-tau217的升高标识了CU个体与正在进行的神经退行向AD.
- 血p-tau217对于早期AD检测和监测具有显著的诊断价值.
- 这支持了血p-tau217在阿尔茨海默病早期干预策略中的作用.
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