精神疾病和相关的常见和罕见遗传变异之间的皮层差异
Kuldeep Kumar1, Zhijie Liao1, Jakub Kopal2
1Centre de recherche CHU Sainte-Justine and University of Montreal, Canada.
概括
与神经发育和精神疾病 (NPD) 相关的遗传变异主要影响大脑表面积. 然而,NPD本身与皮层厚度差异更为相关,这表明非遗传因素起着重要作用.
科学领域:
- 神经遗传学 神经遗传学
- 精神病学遗传学 精神病学遗传学
- 脑部成像 脑部成像
背景情况:
- 遗传变异影响神经发育和精神疾病 (NPDs) 的风险和大脑皮层结构.
- 对于NPD的遗传风险变体和观察到的皮质差异之间的关系仍然不清楚.
研究的目的:
- 研究与NPD相关的遗传变异与皮质厚度 (CT) 和表面积 (SA) 之间的关联.
- 为了确定对皮质结构的遗传影响是否与NPD风险相关.
主要方法:
- 从一般和临床人群中对约33,000个人的CT和SA进行分析.
- 使用了八个NPD的ENIGMA总结统计数据.
- 检查了常见和罕见遗传变异的关联.
主要成果:
- 与NPD风险相关的遗传变异主要影响了总SA.
- NPD与平均CT的相关性更强.
- 在NPD中服用药物的子组对平均CT有更大的影响.
- 遗传变异在感觉运动区域表现出区域影响,而NPD则影响了关联区域.
结论:
- 在NPD中皮层差异并不是直接由个体遗传变异对CT和SA的影响来解释的.
- 非遗传因素,如药物和生活经验,可能会显著影响NPD的皮质变化.
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