公共卫生 公共卫生
1Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom; University of Nairobi, Nairobi, Kenya.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
概括
阿尔茨海默病 (AD) 和血管痴呆症 (VaD) 在全球范围内很常见. 解决高血压等血管风险因素对于减少痴呆症负担至关重要,特别是在非洲.
科学领域:
- 神经学 神经学
- 老年学是指老年学的学科.
- 公共卫生 公共卫生
背景情况:
- 阿尔茨海默病 (AD) 和血管痴呆症 (VaD) 是全球认知障碍的主要原因,特别是在老年人群中.
- 这两种情况都是多因素的,受遗传和环境因素的影响,在低收入和中等收入国家 (LMICs) 的流行率越来越高.
- 尸体解剖研究显示,在大多数可能的阿尔茨海默病例中,血管病理显著,这表明血管和神经退行过程之间存在密切联系.
研究的目的:
- 探索在阿尔茨海默病中血管病理和神经退行性变化之间的相互作用.
- 为了突出非洲血管认知障碍的不成比例高负担,由于高血压和糖尿病等因素.
- 通过管理血管风险因素,研究降低全球痴呆症负担的潜力.
主要方法:
- 在阿尔茨海默病病例中对死后发现的审查,并注意到血管病理的流行.
- 分析流行病学数据,包括INTERSTROKE研究,以比较LMIC和高收入国家 (HIC) 的血管疾病标志物.
- 检查联系血管因素 (例如动脉样硬化) 和神经退行性特征 (例如粉样质斑块,神经纤维结) 的病理机制.
主要成果:
- 超过80%的可能的AD病例表现出可变的血管病理.
- 血管因素,特别是高血压和糖尿病,显著导致认知障碍,在LMIC中发病率更高.
- 脑血管变化如动脉样硬化早期出现,而神经退行性变化如突触损失与认知衰退的进展相关.
- 血管和神经退行性病理的组合是附加的,降低了AD痴呆症的门.
结论:
- 血管疾病是导致痴呆的主要原因,包括阿尔茨海默病.
- 管理可修改的血管风险因素为减少全球痴呆症负担提供了关键策略.
- 针对非洲的个人,社区和人口层面的血管健康,对于减轻认知障碍至关重要.
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