公共卫生 公共卫生
Leslie Grasset1, Geneviève Chêne2, Carole Dufouil1
1Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux, France.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
概括
痴呆症风险概况揭示社会经济地位显著影响大脑衰老和痴呆症风险,独立于遗传. 较低的社会经济地位与更高的痴呆风险和大脑体积减少有关.
科学领域:
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
- 老年学是一门学科.
背景情况:
- 痴呆症是由终身暴露引起的,因此需要采用综合方法来了解病理性大脑衰老.
- 确定因素之间的多因素相互作用有助于痴呆风险.
- 建议进行探索性分析,以确定痴呆症风险概况和相关的大脑MRI标记.
研究的目的:
- 根据痴呆症风险因素识别不同群体的个人.
- 在五年内调查这些群体与痴呆风险之间的关联.
- 检查集群和脑MRI标记物之间的关系,包括结构体积和白质超强度 (WMH).
主要方法:
- 隐性类分析应用于Memento研究中的2257名没有痴呆症的参与者.
- 基于可修改的痴呆风险因素进行聚类:社会经济地位 (SES),血管风险和生活方式.
- 对于痴呆风险的Cox比例风险模型和脑MRI标记器 (结构和WMH) 演变的线性混合模型.
主要成果:
- 确定了四个风险因素集群:低SES/高血管/次优生活方式 (n=275),混合SES/高血管/公平生活方式 (n=635),高SES/中血管/混合生活方式 (n=856),和中间SES/低血管/健康生活方式 (n=491).
- 与高SES相比,低SES的痴呆风险明显更高 (HR=2.02) 和较低的大脑/海马体积.
- 较低的SES概况与大脑体积减少有关,而血管风险概况影响了脑血管病变.
结论:
- 社会经济地位是影响痴呆风险的主要因素,独立于遗传倾向 (APOE-ε4状态).
- 大脑的结构体积受到较低的社会经济地位的重大影响.
- 脑血管病变主要受到血管风险概况的影响.
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