在早期发病的精神病中映射灰色和白质体积异常:一个ENIGMA多中心基于voxel的形态测量研究
Shuqing Si1, Anbreen Bi2, Zhaoying Yu2
1Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom. shuqing.si@kcl.ac.uk.
Molecular psychiatry
|January 10, 2024
概括
早期发病的精神病 (EOP) 与皮质和小脑中广泛的灰质减少有关. 这些大脑变化与发病年龄和药物剂量相关,为精神病提供了洞察力.
科学领域:
- 神经成像是一种神经成像.
- 精神病学是一种精神病学.
- 发育神经科学的发展神经科学.
背景情况:
- 早期发病精神病 (EOP) 影响18岁之前的个体.
- 之前关于EOP中大脑变化的研究表明,由于样本大小小和方法不同,结果不一致.
- 了解EOP中的结构性大脑变化对于理解它对神经发育的影响至关重要.
研究的目的:
- 通过使用基于声素的形态测量 (VBM) 来调查EOP个体的大样本中区域灰质 (GM) 和白质 (WM) 体积差异.
- 探索GM/WM体积变化与临床变量 (如发病年龄和抗精神病药物剂量) 之间的关联.
主要方法:
- 进行了一项大规模的,多站点的基于声素的形态测量 (VBM) 分析.
- 使用ENIGMA-VBM工具对482名EOP患者和469名健康对照者的数据进行了元分析.
- 统计参数T图被生成以识别voxel-wise差异和与临床因素的关联.
主要成果:
- 患有EOP的个体表现出皮质GM体积的广泛减少,特别是在左侧中间环膜.
- 在EOP中观察到较小的减少白质量 (WM) 量集群.
- 在特定区域 (小脑,丘脑,额叶) 的转基因体积较低与更长的发病年龄有关,而在其他区域 (额叶,胰岛) 的转基因缺乏与更高的药物剂量相关.
结论:
- EOP的特点是皮层GM体积的大量减少,在较小程度上,WM体积.
- 虽然转基因变异与发病年龄和药物治疗有关,但这些关联与整体病例对照差异相比不那么明显.
- 在EOP中绘制这些解剖学异常对于理解精神病在儿童和青少年关键时期大脑发育中的作用至关重要.
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