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阅读障碍症和八种痴呆症的风险之间的因果关系
Ping Zhu1, Shan Gao1, Shiyang Wu1
1Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, 100069, Beijing, China.
这项研究发现,阅读障碍症和阿尔茨海默病 (AD) 风险增加之间存在因果关系,这种风险是由认知表现介导的. 通过阅读来改善认知功能可能是对AD的潜在干预.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 公共卫生 公共卫生
背景情况:
- 观察和遗传研究表明,阅读障碍症和阿尔茨海默病 (AD) 之间存在联系.
- 阅读障碍症和AD风险之间的因果关系仍然不清楚.
- 了解这种联系对于制定有针对性的预防和干预策略至关重要.
研究的目的:
- 通过使用孟德尔随机化 (MR) 调查阅读障碍对AD和其他痴呆症风险的因果关系.
- 探索认知表现 (CP) 和教育成就 (EA) 在阅读障碍症-AD关联中的调解作用.
- 提供遗传证据来证明阅读障碍症和痴呆风险之间的关系.
主要方法:
- 使用42个遗传变异用于阅读障碍的两个样本不变的门德尔随机化 (MR) 分析.
- 从全基因组关联研究 (GWAS) 对阿尔茨海默病,血管痴呆症 (VD),莱维体痴呆症 (LBD) 和前性痴呆症 (FTD) 的总结统计数据的分析.
- 采用逆变量加权 (IVW),加权中位数,MR-Egger和MR-PRESSO方法,并对可靠性进行敏感性分析.
主要成果:
- 在增加的阅读障碍和增加的AD风险 (OR=1.15,P=0.006) 之间发现了显著的因果关系,得到MR-PRESSO的支持.
- 在阅读障碍与VD,LBD,FTD或其亚型之间没有发现显著的因果关系.
- 多变量MR和中介分析表明,认知表现 (CP) 中介于阅读障碍对AD的因果效应的46.32%.
结论:
- 遗传证据支持阅读障碍症对AD风险增加的因果关系.
- 认知表现显著调解了阅读障碍症和AD之间的关系.
- 针对阅读和认知功能的干预措施可能有利于AD预防.
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