粉样蛋白阳性和认知轨迹的流行率的种族差异
Hyemin Jang1,2, Min Young Chun1,3,4, Jihwan Yun1,5
1Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, South Korea.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|September 24, 2024
概括
韩国人粉样β (Aβ) 阳性较低,但比非西班牙裔白人 (NHWs) 更快地经历认知衰退. 这些发现突出了Aβ生物标志物流行率和认知轨迹的种族差异.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学是一种遗传学.
- 流行病学 流行病学
背景情况:
- 粉样β (Aβ) 阳性和认知衰退在阿尔茨海默病研究中至关重要.
- 了解Aβ患病率和进展的种族差异对于开发向疗法至关重要.
研究的目的:
- 调查和比较韩国和非西班牙裔白人 (NHW) 人口之间的粉样β (Aβ) 阳性和认知轨迹的患病率.
- 探索Aβ对认知衰退的影响的种族差异.
主要方法:
- 一项包括5121名韩国人和929名来自阿尔茨海默病神经成像计划 (ADNI) 的NHW的队列研究.
- 参与者被分为认知正常 (CU),轻度认知障碍 (MCI) 和痴呆阶段.
- 使用粉样β正子辐射断层扫描,根据年龄,性别,教育和阿波利波蛋白E基因型进行调整,使用多变量逻辑回归和稳定治疗重量的逆概率.
主要成果:
- 与CU NHW相比,Aβ阳性的患病率在认知无障碍 (CU) 韩国人中较低 (调整后几率比率为0.60).
- 有Aβ阳性 (Aβ+) 的韩国人在CU (B = -0.314,p = .004) 和MCI (B = -0.385,p < .001) 阶段表现出比Aβ+ NHW更快的认知衰退率.
- 在两个族群之间观察到阿尔茨海默氏症风险因素对Aβ阳性影响的差异.
结论:
- 在针对Aβ的治疗中,必须考虑粉样β生物标志物特征的种族差异.
- 韩国人的Aβ阳性患病率较低,但与NHW相比,当Aβ阳性时,认知能力下降更快.
- 这些发现强调了种族在阿尔茨海默病研究和临床应用中的重要性.
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