绘制基因关联与精神分裂症的功能性大脑区域变化和对皮质发育的影响
Jun-Ding Zhu1,2, Chih-Yun Chung3, Shu-Fei Lin3
1Department of Occupational Therapy, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan.
Brain and behavior
|July 21, 2025
概括
精神分裂症与大脑特定区域的灰色物质 (GM) 量减少有关,特别是在额叶和叶. 遗传因素可能会在大脑发育过程中驱动这些结构变化.
科学领域:
- 神经成像是一种神经成像.
- 遗传学 是一个遗传学.
- 发育神经科学的发展神经科学.
背景情况:
- 之前的研究表明,精神分裂症的区域灰色物质 (GM) 体积减少.
- 具体受影响的大脑功能区域及其遗传基础仍然不清楚.
研究的目的:
- 在精神分裂症患者中确定具有变化的GM体积的布罗德曼区域 (BA).
- 使用全基因组关联研究 (GWAS) 探索与这些BA相关的遗传变异.
- 研究已识别的基因在皮层发育中的作用.
主要方法:
- 招募了194名精神分裂症患者和330名健康对照.
- 分析了T1加权的MRI扫描,以评估特定BA中的GM体积.
- 进行了GWAS,单细胞RNA测序和现场杂交.
主要成果:
- 在腹前皮层,前叶和带膜皮层中发现了特定BA (例如,BA13,BA23-25,BA27-28,BA31,BA34-35,BA38) 的显著GM体积减少.
- 确定了与受影响的BA相关的多个遗传变异.
- 在皮层发育过程中观察到精神分裂症相关基因的动态表达.
结论:
- 特定的BA更容易受到精神分裂症中转基因体积减少的影响.
- 不同的遗传因素可能导致这些结构异常.
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