在为新生儿脑病变而冷却的儿童中休息状态功能连接
Arthur P C Spencer1,2,3, Marc Goodfellow4,5, Ela Chakkarapani2,6
1Clinical Research and Imaging Centre, University of Bristol, Bristol BS2 8DX, UK.
Brain communications
|May 14, 2024
概括
新生儿缺氧缺血性脑膜病变的治疗性低温症在学龄期的休息状态大脑功能连接中没有差异. 这表明大脑功能可能恢复,尽管冷却儿童的结构差异.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 儿科神经学 儿科神经学
背景情况:
- 治疗性低温改善了新生儿缺氧缺血性脑病变 (HIE) 的结果.
- 冷却儿童在学龄时可能表现出认知和运动障碍,这与大脑结构和白质变化有关.
- 之前对HIE大脑网络的研究主要集中在新生儿时期,没有探索学龄期的功能连接.
研究的目的:
- 通过使用休息状态fMRI在治疗新生儿HIE而没有脑的学龄儿童 (6-8岁) 中研究静态和动态功能连接性.
- 为了比较具有HIE病史的儿童与健康对照者之间的静止状态大脑网络特征.
主要方法:
- 休息状态功能性MRI用于22名为HIE治疗的儿童和20名匹配的健康对照.
- 集团独立组件分析确定了内在连接网络.
- 滑窗相关性和深度聚类分析了动态功能连接状态.
主要成果:
- 在HIE和对照组之间的内在连接网络的空间地图中没有发现显著差异.
- 静态功能连接性分析显示,在纠正后没有病例控制差异.
- 动态功能连接分析显示,功能状态的数量,停留时间或占用率没有差异.
结论:
- 在这个队列中,在没有严重残疾的学龄儿童接受HIE治疗时,休息状态大脑网络的特征与健康对照组相似.
- 这些发现表明,尽管已知的结构差异,健康的休息状态大脑功能可能会恢复.
- 这是第一个在HIE幸存者中检查新生儿期以外的休息状态功能连接的研究,也是第一个在这个人群中评估动态功能连接的研究.
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