Page 109 - 《南京医科大学学报》2026年第1期
P. 109

第46卷第1期                           南京医科大学学报(自然科学版)
                  2026年1月                   Journal of Nanjing Medical University(Natural Sciences)    · 103  ·


               ·临床研究·

                SeLECTS患儿全脑神经磁网络变化及其与认知损害的关系



                卢   婧,周欣怡,王英藩,李明昊,朱寅杰,王小姗                  *
                南京医科大学附属脑科医院神经内科,江苏 南京                  210029




               [摘   要] 目的:探究伴中央颞区尖峰的儿童自限性癫痫(self⁃limited epilepsy with centrotemporal spikes,SeLECTS)患儿全脑
                神经磁网络的改变,并探索其与认知功能之间的关系。方法:收集63例未服药的SeLECTS组患儿和30名健康对照(health control,
                HC)组脑磁图(magnetoencephalography,MEG)数据。校正振幅包络相关性(corrected amplitude envelope correlation,AEC⁃c)分
                析估算全脑振荡功能连接(functional connectivity,FC)。采用第4版韦氏儿童智力量表(the fourth edition of the Wechsler intelli⁃
                gence scale,WISC⁃Ⅳ)对所有患儿进行智力评估。Spearman相关分析法计算AEC⁃c值与WISC⁃Ⅳ指数之间的相关性。结果:与
                HC组比较,SeLECTS患儿在beta频段右外侧眶额与右距状旁回之间的FC强度下降;在theta频段,左侧嗅皮质与左侧前扣带回
                头部 FC 网络强度下降;在 gamma2 频段,右侧梭状回与左侧顶叶下回之间的 FC 网络强度下降(P 均< 0.05)。相反,在 theta 频
                段,左侧前扣带回头部与左侧岛回之间及左侧海马旁回和右侧梭状回之间的FC强度,以及在gamma1频段,左侧中央后回和右
                侧楔叶之间的FC网络增强(P < 0.05)。在theta频段,工作记忆指数(working memory index,WMI)得分与右侧梭状回和左侧海
                马旁回之间的 AEC⁃c 值呈正相关(r=0.255,P < 0.05);同样在theta波段,加工速度指数(processing speed index,PSI)得分与左侧
                岛回和左侧前扣带回头部之间的 AEC⁃c 值呈正相关(r=0.258,P < 0.05);在 gamma1 频段,直觉推理指数(perceptual reasoning
                index,PRI)得分与左侧中央后回和右侧楔叶之间的AEC⁃c值呈负相关(r=-0.266,P < 0.05)。结论:与HC相比,SeLECTS患儿
                的FC网络在theta、beta和gamma频段上表现出显著差异。此外,这些FC网络表现出差异的脑区大多位于认知相关网络的关
                键节点上,这可能有助于理解SeLECTS患儿认知功能早期改变的机制。其次,FC增强的网络连接值与认知相关指标表现出线
                性相关,体现了神经影像学技术在评估认知功能损害方面的潜力。
               [关键词] 伴中央颞区棘波的儿童自限性癫痫;功能连接;认知功能;脑磁图;多频段
               [中图分类号] R742.1                   [文献标志码] A                       [文章编号] 1007⁃4368(2026)01⁃103⁃09
                doi:10.7655/NYDXBNSN250325


                Altered whole ⁃ brain neuromagnetic networks in children with self ⁃ limited epilepsy with
                centrotemporal spikes:associations with cognitive impairment

                LU Jing,ZHOU Xinyi,WANG Yingfan,LI Minghao,ZHU Yinjie,WANG Xiaoshan  *
                Department of Neurology,the Affiliated Brain Hospital of Nanjing Medical University,Nanjing 210029,China


               [Abstract] Objective:To examine changes in whole ⁃ brain neuromagnetic networks in children with self ⁃ limited epilepsy with
                centrotemporal spikes(SeLECTS)and assess the association between these network alterations and cognitive performance. Methods:
                Magnetoencephalography(MEG)data were collected from 63 unmedicated children with SeLECTS and 30 healthy controls(HC).
                Corrected amplitude envelope correlation(AEC ⁃ c)analysis was performed to estimate the whole ⁃ brain oscillatory functional
                connectivity(FC). Cognitive function was assessed in all children using the fourth edition of the Wechsler Intelligence Scale for
                Children(WISC⁃Ⅳ). Spearman’s correlation analysis was applied to determine the relationship between AEC⁃c values and WISC⁃Ⅳ
                indices. Results:Compared to the HC group,children with SeLECTS exhibited reduced FC in several networks,including the left
                entorhinal cortex and the left rostral anterior cingulate in the theta band,the right lateral orbitofrontal cortex and the right pericalcarine
                in the beta band,and the right fusiform gyrus and the left inferior parietal gyrus in the gamma2 band(all P < 0.05). Conversely,
                increased FC was observed between the right fusiform gyrus and the left parahippocampal gyrus,the left insular gyrus and the left
                rostral anterior cingulate in the theta band,and the left postcentral gyrus and the right cuneus in the gamma1 band(P < 0.05).

               [基金项目] 国家自然科学基金(82071455)
                通信作者(Corresponding author),E⁃mail:lidou2005@126.com(ORCID:0000⁃0003⁃3452⁃0402)
                ∗
   104   105   106   107   108   109   110   111   112   113   114