副本数变异增加精神分裂症风险:对大脑形态学和认知表现的共同和独特影响
Xavier Caseras1, Sophie E Legge1, Matthew Bracher-Smith1
1Medical Research Council Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, Wales, United Kingdom.
Biological psychiatry global open science
|October 26, 2023
概括
与精神障碍相关的副本数变异 (CNVs) 对大脑结构和认知有不同的影响. 即使有共同的精神病风险,不同的神经生物学途径也解释了对大脑形态学和认知表现的各种影响.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 精神病学是一个精神病学.
背景情况:
- 副本数变异 (CNVs) 与精神障碍,大脑变化和认知缺陷有关.
- 目前尚不清楚这些影响是否在不同的CNV中是共享的或独特的.
- 这项研究调查了CNVs对大脑和认知有共同的精神病学责任的共同效应和独特效应.
研究的目的:
- 为了比较不同副本数变异 (CNVs) 对大脑形态学的影响.
- 评估CNVs对认知表现的影响.
- 确定这些影响是否在具有类似精神病责任的CNV中共享或区别.
主要方法:
- 分析了英国生物库的参与者 (31,941人没有损害的CNV,202人患有精神分裂症风险的CNV).
- 回归分析将大脑形态测量和认知表现与 CNV 状态联系起来.
- 通过方程建模,对跨CNV的效果大小进行比较和调解分析.
主要成果:
- 在CNV,大脑形态测量和认知能力之间发现了不同的关联模式.
- 1q21.1删除显示最强的链接是额叶表面积和数字记忆.
- 1q21.1重复与膜体积和反应时间最相关,由明显的脑部变化介导.
结论:
- 具有共享精神病责任的CNV对大脑形态测量和认知表现具有明显的影响.
- 这些发现表明,独特的神经生物学途径有助于形成类似的临床表型.
- 了解这些不同的途径对于针对心理障碍的有针对性的干预至关重要.
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