多类建模确定了晚发和阿尔茨海默病的共同遗传风险
Mingzhou Fu1,2, Thai Tran2, Eleazar Eskin3
1Mary S. Easton Center for Alzheimer's Research and Care, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
medRxiv : the preprint server for health sciences
|February 19, 2024
概括
研究人员确定了阿尔茨海默病 (AD) 和晚发性 (LOE) 的共同遗传风险,揭示了LOE部分调解AD风险. 除了APOE之外的新基因有助于这种共享的遗传风险.
科学领域:
- 神经遗传学 神经遗传学
- 基因组学就是基因组学.
- 和阿尔茨海默病的研究研究.
背景情况:
- 晚发性 (LOE) 和阿尔茨海默病 (AD) 分享已确立的联系,但它们除了APOE基因之外的共同遗传基础尚未完全理解.
- 调查共享的遗传因素对于理解AD和LOE的共同发生和潜在的共享生物途径至关重要.
研究的目的:
- 识别导致阿尔茨海默病和晚发性的共同遗传因素.
- 解释这些共同遗传风险所涉及的生物途径.
- 评估LOE在共同遗传风险和AD发病之间的关系中的调解作用.
主要方法:
- 用fecodes来定义表型,用于60-90岁的患者.
- 一个两步的最小绝对收缩和选择操作员 (LASSO) 工作流整合了AD全基因组协会研究 (GWAS) 数据与功能基因组学.
- 使用AD-LOE共享风险评分的因果调解分析,在UCLA健康和我们所有人电子健康数据库中得到验证.
主要成果:
- 确定了AD和LOE之间共享的34个基因位置,包括APOE区域,映射到65个基因.
- 丰富性分析显示,它与蛋白结合和脂蛋白代谢有关.
- 较高的共同风险得分与AD,LOE或两者的风险增加相关;LOE部分调解了AD-LOE在AD的遗传风险 (平均为15%).
结论:
- 机器学习确定了AD和LOE的共同遗传风险,突出了APOE-TOMM40-APOC1基因群并发现了新的贡献基因.
- 这项研究提供了对AD和LOE的共同和疾病特异性机制的新见解,利用了我们所有人的遗传数据.
- 这些发现对制定针对阿尔茨海默症和LOE同时发生的有针对性的预防和治疗策略有重大影响.
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