在没有痴呆症的中国老年人中,ApoE基因型,年龄和认知能力下降:一项以人口为基础的研究,随访五年
Hao Wu1,2, Xingzhong Gu3, Shuai Liu1,2
1Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China.
International journal of geriatric psychiatry
|January 15, 2025
概括
在老年人中,Apolipoprotein E (ApoE) ε4基因型加速认知衰退,增加痴呆风险. 这种风险在70-79岁的人群中尤为明显,突出显示ApoE ε4是认知衰老的关键因素.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 老年学是一门学科.
背景情况:
- 阿波利波蛋白E (ApoE) ε4基因型是已知的阿尔茨海默病 (AD) 的风险因素.
- ApoE ε4对非痴呆老年人的认知衰退和痴呆风险的具体影响,特别是关于年龄,仍然不清楚.
研究的目的:
- 调查Apolipoprotein E (ApoE) 多态化与认知能力下降风险之间的关联.
- 确定在没有痴呆症的老年人中ApoE多态和痴呆症发病率之间的关系.
主要方法:
- 一项基于人口的前性研究,涉及767名年龄≥60岁,无痴呆症的中国人.
- 参与者对ApoE (E3,E4,E2组) 进行了基因型定型,并进行了5年的随访.
- 使用迷你精神状态检查 (MMSE) 评分来评估认知衰退,并记录了痴呆症发病率.
主要成果:
- 与E3和E2组相比,具有ApoE ε4基因型的个体表现出更快的认知衰退率 (MMSE分数变化),特别是那些年龄在70-79岁的人.
- 在70-79岁年龄段的ApoE ε4组中,痴呆的发病率显著更高.
- 在对多个共同变量进行调整后,ApoE ε4基因被确定为70-79岁年龄组中痴呆发病率的独立风险因素.
结论:
- 60岁及以上的Apolipoprotein E (ApoE) ε4载体经历了加速的认知衰退.
- ApoE ε4等位基因是痴呆发病的独立风险因素,特别是在70-79岁的老年人群中.
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