可修改的风险因素如何影响阿尔茨海默病的病理或减轻其对临床症状表现的影响?
Valentin Ourry1, Alexa Pichet Binette2, Frédéric St-Onge3
1Department of Psychiatry, Faculty of Medicine, McGill University, Montreal, Quebec, Canada; Douglas Mental Health University Institute, Montreal, Quebec, Canada.
Biological psychiatry
|September 9, 2023
概括
可修改的风险因素通过影响病理发展或延迟认知症状来影响痴呆症,包括阿尔茨海默病 (AD). 了解这些途径可以为AD预防和治疗提供新的干预措施.
科学领域:
- 神经科学是一个神经科学.
- 流行病学 流行病学
- 医疗成像医学成像
背景情况:
- 可修改的风险因素导致~40%的痴呆症变异性,包括偶发性阿尔茨海默病 (AD).
- 这些因素也可能影响自体主导AD的疾病进展.
- 定子发射断层扫描 (PET) 可以在临床发病前几年早期研究AD病理.
研究的目的:
- 审查神经成像证据支持在AD中抵抗和弹性途径.
- 探索可修改的风险因素的保护作用的潜在机制.
- 确定新型AD干预措施的潜在目标.
主要方法:
- 现有文献的叙述性审查.
- 对零星和自体主导AD的神经成像研究 (PET) 的分析.
- 检查拟议的生物机制.
主要成果:
- 神经成像证据支持两个途径:"抵抗" (延迟病理) 和"弹性" (减轻症状).
- 抵抗路径机制涉及神经和血管因素.
- 弹性途径的机制包括大脑维护和功能补偿.
结论:
- 可修改的风险因素通过不同的抵抗和弹性途径影响AD.
- 了解这些途径为预防AD病理或延迟认知衰退提供了洞察力.
- 进一步的机制研究可能会导致阿尔茨海默病的新治疗策略.
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