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Sex differences in medial prefrontal and parietal cortex structure in children with disruptive behavior
Developmental Cognitive Neuroscience ( IF 4.7 ) Pub Date : 2020-11-16 , DOI: 10.1016/j.dcn.2020.100884
Karim Ibrahim 1 , Carla Kalvin 1 , Fangyong Li 2 , George He 3 , Kevin A Pelphrey 4 , Gregory McCarthy 3 , Denis G Sukhodolsky 1
Affiliation  

Sex differences in brain structure in children with disruptive behavior disorders (DBD) remain poorly understood. This study examined sex differences in gray matter volume in children with DBD in a priori regions-of-interest implicated in the pathophysiology of disruptive behavior. We then conducted a whole-brain analysis of cortical thickness to examine sex differences in regions not included in our hypothesis. Exploratory analyses investigated unique associations between structure, and dimensional measures of severity of disruptive behavior and callous-unemotional traits. This cross-sectional study included 88 children with DBD (30 females) aged 8–16 years and 50 healthy controls (20 females). Structural MRI data were analyzed using surface-based morphometry to test for interactions between sex and group. Multiple-regression analyses tested for sex-specific associations between structure, callous-unemotional traits, and disruptive behavior severity. Boys with DBD showed reduced gray matter volume in the left ventromedial prefrontal cortex (vmPFC) and reduced cortical thickness in the supramarginal gyrus, but not girls compared to respective controls. Dimensional analyses revealed associations between sex, callous-unemotional traits, and disruptive behavior for amygdala and vmPFC volume, and ventrolateral prefrontal cortex cortical thickness. Sex-specific differences in prefrontal structures involved in emotion regulation may support identification of neural biomarkers of disruptive behavior to inform target-based treatments.



中文翻译:

破坏性行为儿童内侧前额叶和顶叶皮层结构的性别差异

对破坏性行为障碍 (DBD) 儿童大脑结构的性别差异仍知之甚少。这项研究检查了 DBD 儿童在与破坏性行为的病理生理学有关的先验感兴趣区域中灰质体积的性别差异。然后,我们对皮质厚度进行了全脑分析,以检查未包含在我们假设中的区域的性别差异。探索性分析调查了结构和破坏性行为和冷酷无情特征的严重程度的维度测量之间的独特关联。这项横断面研究包括 88 名年龄在 8-16 岁之间的 DBD 儿童(30 名女性)和 50 名健康对照(20 名女性)。使用基于表面的形态测量法分析结构 MRI 数据,以测试性别和群体之间的相互作用。多重回归分析测试了结构、冷酷无情的特征和破坏性行为严重程度之间的性别特异性关联。与相应的对照组相比,患有 DBD 的男孩左腹内侧前额叶皮层 (vmPFC) 的灰质体积减少,边缘上回的皮质厚度减少,但女孩没有。维度分析揭示了性别、冷酷无情的特征以及杏仁核和 vmPFC 体积的破坏性行为以及腹外侧前额叶皮层皮质厚度之间的关联。参与情绪调节的前额叶结构的性别特异性差异可能支持识别破坏性行为的神经生物标志物,以告知基于目标的治疗。与相应的对照组相比,患有 DBD 的男孩左腹内侧前额叶皮层 (vmPFC) 的灰质体积减少,边缘上回的皮质厚度减少,但女孩没有。维度分析揭示了性别、冷酷无情的特征以及杏仁核和 vmPFC 体积的破坏性行为以及腹外侧前额叶皮层皮质厚度之间的关联。参与情绪调节的前额叶结构的性别特异性差异可能支持识别破坏性行为的神经生物标志物,以告知基于目标的治疗。与相应的对照组相比,患有 DBD 的男孩左腹内侧前额叶皮层 (vmPFC) 的灰质体积减少,边缘上回的皮质厚度减少,但女孩没有。维度分析揭示了性别、冷酷无情的特征以及杏仁核和 vmPFC 体积的破坏性行为以及腹外侧前额叶皮层皮质厚度之间的关联。参与情绪调节的前额叶结构的性别特异性差异可能支持识别破坏性行为的神经生物标志物,以告知基于目标的治疗。杏仁核和 vmPFC 体积以及腹外侧前额叶皮层皮质厚度的破坏性行为。参与情绪调节的前额叶结构的性别特异性差异可能支持识别破坏性行为的神经生物标志物,以告知基于目标的治疗。杏仁核和 vmPFC 体积以及腹外侧前额叶皮层皮质厚度的破坏性行为。参与情绪调节的前额叶结构的性别特异性差异可能支持识别破坏性行为的神经生物标志物,以告知基于目标的治疗。

更新日期:2020-11-27
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