患有非AD病理变化的老年人疾病轨迹和与阿尔茨海默病病理生理学的比较:一项纵向研究
Jie-Qiong Li1, Jing-Hui Song1, John Suckling2
1Department of Neurology, the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China.
Neurobiology of aging
|December 6, 2023
概括
患有异常病或神经退行生物标志物的个人,但不是粉样蛋白,表现出更快的认知衰退. 这种非阿尔茨海默氏病 (AD) 的病理变化比正常的AD生物标志物更影响疾病进展.
科学领域:
- 神经学 神经学
- 神经科学是一个神经科学.
- 生物标志物研究 生物标志物研究
背景情况:
- 在AT(N) 系统使用粉样蛋白 (A),病 (T) 和神经退行 (N) 生物标志物对病理变化进行分类.
- 非阿尔茨海默病 (AD) 的病理变化涉及正常的粉样蛋白,但异常的病或神经退行.
- 了解非AD病理变化对于区分疾病轨迹至关重要.
研究的目的:
- 评估非AD病理变化的个体的长期临床和认知轨迹.
- 将这些轨迹与具有正常AD生物标志物和具有AD病理生理学的个体进行比较.
- 研究特定生物标志物组合对疾病进展的影响.
主要方法:
- 利用了来自阿尔茨海默病神经成像计划 (ADNI) 的数据.
- 采用混合效应模型和多变量Cox比例危险模型进行纵向分析.
- 随着时间的推移,评估了临床结果和转化风险.
主要成果:
- 患有异常病或神经退行生物标志物 (A-T+N-, A-T-N+, A-T+N+) 的个体表现出比正常生物标志物 (A-T-N-) 的人更快的认知衰退和疾病进展.
- 异常病症和神经退行症 (A-T+N+) 的组合显示出比单独的异常病症 (A-T+N-) 更快的衰退.
- 粉样蛋白生物标志物 (A+) 的存在加速了认知衰退和临床进展,即使具有类似的病和神经退行状态.
结论:
- 异常的病或神经退行生物标志物显著加速认知衰退和疾病进展,独立于粉样蛋白状况.
- 非AD病理变化代表了一条独特的途径,对临床结果有影响.
- 这些发现支持进一步研究非AD病理变化,并将其与AD病理生理学进行比较.
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