谷氨酸的发育轨迹和青少年ADHD的可变临床过程
Marine Bouyssi-Kobar1, Yan Zhang2, Luke Norman3
1Section on Social and Cognitive Developmental Neuroscience, National Institute of Mental Health, 10 Center Drive, Bethesda, MD, 20892, USA. marine.bouyssi-kobar2@nih.gov.
Translational psychiatry
|February 13, 2026
概括
大脑中的谷氨酸水平.
科学领域:
- 神经科学是一个神经科学.
- 神经化学 神经化学
- 发展心理学 发展心理学
背景情况:
- 注意缺陷/多动障碍 (ADHD) 具有可变的临床过程,其中一些人超越症状,而另一些人则在成年后持续存在.
- 以前的研究强调了谷氨酸在ADHD中的作用,谷氨酸是大脑的主要刺激性神经递质.
- 中部前额叶皮质的结构和功能差异与不同的ADHD症状轨迹有关.
研究的目的:
- 调查谷氨酸在中部前额叶皮质发育变化的作用在多动性多动症的可变临床过程中.
- 检查谷氨酸改变对ADHD患者大脑内在连接的影响.
主要方法:
- 在3特斯拉利用谷氨酸特异性磁共振光谱 (MRS) 来分析161名参与者的241个光谱 (69名持久性多动症,20名缓解多动症,72名对照).
- 在104名参与者的子集中,使用功能性MRI (fMRI) 评估了内在的功能连接性.
- 采用线性混合模型来分析与年龄相关的谷氨酸变化及其与功能连接的关联.
主要成果:
- 在持久性ADHD组中发现与年龄相关的中部前额前额谷氨酸含量显著增加,与缓解ADHD和对照组的年龄相关下降形成鲜明对比.
- 观察到前额前叶谷氨酸度变化与默认模式网络与皮下区域之间的内在连接性变化之间的关联.
- 这些发现表明,在患有持续多动症的年轻人中,中部前额叶皮层内的谷氨酸成熟发生了潜在的改变.
结论:
- 中间前额前额谷氨酸的发育变化可能会使ADHD的临床过程有所不同.
- 持续性ADHD中改变的谷氨酸成熟与大脑网络连接的中断有关.
- 这些见解为理解和管理ADHD轨迹提供了潜在的目标.
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