中年大脑结构,功能和连接性的APOE ε4相关差异:范围审查
Rikki Lissaman1, Sidra Anjum2, Andrea Quaiattini3
1Department of Psychiatry, McGill University, Montreal, QC, Canada; Department of Psychology, Royal Holloway, University of London, Egham, Surrey, UK.
The journal of prevention of Alzheimer's disease
|August 30, 2025
概括
作为阿尔茨海默病的风险因素的阿波利波蛋白E (APOE) ε4基因对中年人的大脑结构的影响很小. 需要进一步研究以了解它对大脑功能和连接性的影响.
科学领域:
- 神经科学
- 遗传学
- 放射学
背景情况:
- 无脂蛋白E (APOE) ε4基因是晚期阿尔茨海默病 (AD) 的重要遗传风险因素.
- APOE ε4对大脑的影响的确切机制和时间尚不清楚.
- 了解这些影响对于早期干预策略至关重要.
研究的目的:
- 对APOE ε4相关的大脑结构,功能和连接性的现有研究进行综合.
- 在没有认知障碍的中年人 (40-65岁) 中检查这些差异.
- 确定有关APOE ε4中年大脑影响的当前文献上的差距.
主要方法:
- 采用了一个范围审查方法.
- 在四个主要的在线数据库 (MEDLINE,Embase,PsycINFO,Scopus) 进行了搜索.
- 数据提取集中在30项已识别的研究中的样本特征,方法和APOE ε4相关发现上.
主要成果:
- 在中年时发现强烈,一致的APOE ε4相关大脑结构差异的证据有限.
- 确定的研究中常见的局限性包括样本规模较小以及对性别和民族文化多样性的考虑不足.
- APOE ε4 携带者与非携带者之间的大脑功能和连接的差异没有得到很好的描述.
结论:
- 在中年时,阿波利波蛋白E (APOE) ε4基因对大脑结构的影响很小.
- 需要进一步研究以充分描述APOE ε4对中年大脑功能和连接性的影响.
- 解决样本多样性和规模的局限性对于未来的研究至关重要.
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