自闭症谱系障碍的系统异质性通过个性化结构共变性网络分析揭示出来
Qiuyue Zhang1, Xi Yang2, Jianfeng Qiu3
1Department of Radiology, The Second Affiliated Hospital of Shandong First Medical University, Taian 271016, China.
Progress in neuro-psychopharmacology & biological psychiatry
|December 20, 2024
概括
自闭症谱系障碍 (ASD) 显示了大脑的结构差异,揭示了两种亚型. 这些与大脑干和皮下区域相关的亚型可能有助于精确的ASD诊断和治疗.
科学领域:
- 神经成像是一种神经成像.
- 神经科学是一个神经科学.
- 精神病学是一种精神病学.
背景情况:
- 自闭症谱系障碍 (ASD) 的特点是临床异质性.
- 神经成像研究表明,ASD中大脑结构异质.
- 在ASD中系统水平的大脑结构异质性仍未得到充分研究.
研究的目的:
- 为了研究系统水平的ASD中的大脑结构异质性.
- 根据结构性协差网络来确定ASD的亚型.
- 探索大脑结构差异与ASD临床特征之间的关系.
主要方法:
- 个人差异结构共变网络 (IDSCN) 分析应用于650名自闭症患者和803名神经类型对照.
- 用K-means集群来识别ASD队列中的亚型.
- 对人口统计,临床和神经成像数据进行了统计和相关性分析.
主要成果:
- 确定了两种不同的ASD亚型,其特点是17个大脑连接的差异.
- 亚型显示出临床特征的变化,包括受限制的重复行为和社交互动得分.
- 在特定的大脑连接 (VTA-substantia nigra) 和受限制的重复性行为得分之间发现了相关性.
结论:
- 自闭症表现出系统性大脑结构异质性,特别是涉及皮下和脑干区域.
- 已识别的亚型与ASD中受限制的重复行为有关.
- 这些亚型为ASD提供了精确诊断和个性化治疗策略的潜力.
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