胎儿基因调节基因删除与精神分裂症的认知能力低下和皮质形态变化以及基于社区的样本有关
medRxiv : the preprint server for health sciences
|August 30, 2024
概括
与精神分裂症谱系障碍 (SSD) 相关的副本数变异 (CNV) 影响认知和发育的可变性. 胎儿基因调节中的删除会影响智力功能和大脑结构,建议个性化治疗途径.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
背景情况:
- 精神分裂症谱系障碍 (SSD) 呈现出显著的遗传和临床异质性.
- 拷贝数变异 (CNVs) 在SSD临床变异性中的作用仍然不完全理解.
- 已知风险的CNV和更广泛的基因组CNV有助于SSD的表型多样性.
研究的目的:
- 调查已知风险CNV,更广泛的CNV和SSD内部的特定表型之间的关联.
- 探索神经发育基因中缺失对边界智力功能和儿童发病精神病的影响.
- 检查胎儿发育期间基因表达调节与神经发育结果之间的关系.
主要方法:
- 在618名SSD个体中分析了与边界智力功能和童年发病精神病的CNV关联.
- 在SSD亲属,对照和青少年大脑认知发展 (ABCD) 研究队列中进行复制分析.
- 与基因删除相关的皮质形态 (灰质体积,皮质厚度) 的探索性分析.
主要成果:
- 已知SSD和神经发育障碍 (NDD) 风险的CNV与SSD病例的边界智力功能有显著的关联.
- NDD风险删除显示了与儿童发病精神病的名义关联.
- 胎儿基因调节基因的删除与边界智力功能和跨队伍的皮质形态改变有关.
结论:
- 已知风险的CNVs有助于SSD中的表型变异.
- 神经发育框架有助于识别SSD和一般人群中表型变异的基础机制.
- 这些发现对SSD护理中的个性化医学有意义.
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