Cerebral Cortex:妈妈童年经历、抑郁影响孩子脑功能网络发育

2021-04-08 MedSci原创 MedSci原创

儿童时期的脑功能网络发展与母亲不良童年经历和抑郁有关,母亲不良的童年经历和抑郁症状以性别依赖的方式影响孩子特殊的大脑功能网络的发展。

母亲童年时期的虐待和抑郁增加了子女患精神病的风险。

产妇儿童期不良经历,如性虐待、情感和身体虐待和忽视,有长期影响的情感,认知,行为后果,增加其后代罹患精神疾病的风险。患有抑郁症的母亲的孩子经历类似的发展结果,并且精神病理风险增加,这些发现可能表明存在一种神经生物学机制,这种机制可能是儿童发育结果与多种形式的母亲不良经历之间的联系的基础,如童年创伤和加重的抑郁症状。

Han Zhang等采用纵向数据集的母子配对,考察了母亲儿童虐待和抑郁背景下4.5 - 7.5岁的大脑功能网络发展轨迹及其与7.5岁儿童行为的关系。

研究这一年龄段的儿童大脑是因为这是大脑发育的关键时期和儿童大脑磁共振成像(MRI)获取依从性。他们假设,共同的大脑功能网络,如感觉、执行和情绪大脑网络,可能表现出与母亲童年虐待和抑郁相关的神经发育表型。由于童年时期不同大脑网络的发育时间不同,该研究预计,在母亲不良经历的背景下,一些功能性大脑网络可能表现出加速成熟,而另一些可能表现出延迟成熟。这样的发现可能在女孩身上出现,但在男孩身上没有。

该研究利用母子二元组的纵向数据集,研究儿童大脑功能网络和行为的发展轨迹与母婴时期的不良经历和抑郁的关系。母亲的童年创伤通过童年创伤问卷进行回顾性评估,而母亲的抑郁症状在怀孕期间和分娩后进行前瞻性评估(n = 518)。儿童在4岁、6岁和7岁时进行脑部扫描(n = 163),并在7岁时使用儿童行为检查表测量行为问题。

结果发现后代儿童语言网络与感觉运动网络、额叶网络和注意网络的功能连接与母亲不良经历有关,且与性别和年龄相互作用。患有抑郁症状或童年虐待的母亲的女儿的语言网络-视觉网络的功能连接增强,这与社会问题有关。患有抑郁症状的母亲的女儿表现出语言网络-感觉运动网络的功能连接的生长较慢。该研究发现语言网络组织是母亲童年创伤和抑郁的神经内表型。

该研究表明儿童时期的脑功能网络发展与母亲不良童年经历和抑郁有关。采用独特的母子纵向数据集,为母亲不良童年经历和抑郁症状与后代神经发育之间的联系提供了新的证据。母亲不良的童年经历和抑郁症状在后代中具有共同的神经发育结果,这反映在与感觉运动网络、额叶网络和注意网络的语言网络连接的发展。该研究结果表明,母亲不良的童年经历和抑郁症状以性别依赖的方式影响孩子特殊的大脑功能网络的发展。

总之,该研究为性别依赖的脑功能网络发育作为与母亲不良童年经历和抑郁症状相关的潜在神经发育表型提供了独特的证据。早期儿童时期是大脑发育以适应早期生活环境影响的关键和可塑时期。

原文出处:

Han Zhang, Ting-Yat Wong, Birit F P Broekman, Maternal Adverse Childhood Experience and Depression in Relation with Brain Network Development and Behaviors in Children: A Longitudinal Study, Cerebral Cortex, 2021;, bhab081

 

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    2021-04-10 neurowu
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    2021-04-09 12541530m28暂无昵称

    学习了

    0

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    2021-04-08 ltxdsr810920

    学习了

    0