精神分裂症在典型发育过程中的多基因风险反映了多层次的皮层组织
Matthias Kirschner1,2,3, Casey Paquola1,4, Budhachandra S Khundrakpam1
1Montreal Neurological Institute, McGill University, Montreal, Québec, Canada.
Biological psychiatry global open science
|October 26, 2023
概括
精神分裂症多基因风险评分 (PRS-SCZ) 显示儿童皮质发育异常. 较高的PRS-SCZ与皮质厚度增加有关,反映了精神分裂症.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 发展心理学 发展心理学
背景情况:
- 精神分裂症越来越多地被理解为神经发育障碍.
- 精神分裂症多基因风险评分 (PRS-SCZ) 可以识别儿童和青少年皮质发育异常.
研究的目的:
- 调查PRS-SCZ与典型发育年轻人的皮质形态学之间的关联.
- 探索精神分裂症的遗传风险如何影响不同年龄组和大脑区域的皮质发育.
主要方法:
- 在390名典型发育的儿童和青少年 (3-21岁) 中评估PRS-SCZ和皮质厚度,使用全基因组基因型和MRI.
- 综合发现与年龄匹配的转录组学,细胞架构和网络数据.
- 结果与ENIGMA联盟对精神分裂症和精神疾病的大规模元分析进行了比较.
主要成果:
- 较高的PRS-SCZ与皮质厚度增加相关,特别是在协会区域和腹部注意力网络.
- 这种在年轻人中增加厚度的模式与在成人精神分裂症和情绪障碍中观察到的皮质稀释形成鲜明对比.
- 一个发育轨迹被建议,儿童早期皮质厚化转向在青春晚期变薄.
结论:
- 将成像遗传学与多尺度映射相结合,可以了解精神分裂症遗传风险对皮质的早期影响.
- 这些发现突出了PRS-SCZ在识别精神分裂症临床表现之前的神经发育变化的潜力.
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