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当代阿耳茨海默病研究

Editor-in-Chief

ISSN (Print): 1567-2050
ISSN (Online): 1875-5828

Research Article

APOE基因型和脑成像分类在正常认知、轻度认知障碍和阿尔茨海默病:一项纵向研究

卷 17, 期 8, 2020

页: [766 - 780] 页: 15

弟呕挨: 10.2174/1567205017666201109093314

价格: $65

摘要

目的:在一项长期前瞻性研究中,419名45-82岁的无卒中认知正常受试者(CN)的临床前痴呆谱系:1)小血管疾病(V)和脑萎缩(A)的分布集中 V−/A−, V−/A+, V+/A−, V+/A+; 2)这些影像学分类与载脂蛋白E基因型的关系;3)单个APOE基因型进展为阿尔茨海默病(AD)的风险。 方法:参与者接受了1个基线(t0)和4个临床和神经心理学评估(t1,t2,t3和t4)。所有受试者均于t0、t2、t3和t4进行脑MRI检查。用两种视觉评定量表评定脑白质高强度。腔隙也进行了评级。分别通过双尾骨比和侧脑室脑比检测皮层下脑萎缩和全脑萎缩。所有受试者均于t0测定APOE基因型。采用Cox比例风险模型评估AD进展的风险。结果:混合型的影像学分类在AD中很常见,而在非遗忘型轻度认知障碍的APOE ε4非携带者中也很常见。在这些受试者中,额区和顶枕区受小血管疾病的影响最大。 结果:混合型的影像学分类在AD中很常见,在非遗忘性轻度认知障碍的APOE ε4非携带者中也很常见。在这些受试者中,额区和顶枕区受小血管疾病的影响最大。 结论:我们的研究结果表明,APOE ε3等位基因可能与脑血管病理有关。

关键词: APOE基因型,白质高强度,腔隙,尾状萎缩,全脑萎缩,脑成像分类。

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