Brain Lateralization in Mice Is Associated with Zinc Signaling and Altered in Prenatal Zinc Deficient Mice That Display Features of Autism Spectrum Disorder.

Brain Lateralization in Mice Is Associated with Zinc Signaling and Altered in Prenatal Zinc Deficient Mice That Display Features of Autism Spectrum Disorder.
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小鼠的脑横向化与锌信号传导有关,并且在产前锌缺乏小鼠中改变了自闭症谱系障碍的特征。

DOI:
10.3389/fnmol.2017.00450
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发表时间:
2017
影响因子:
4.8
通讯作者:
Grabrucker AM
Grabrucker AM
中科院分区:
医学2区
文献类型:
--
作者:
Grabrucker S;Haderspeck JC;Sauer AK;Kittelberger N;Asoglu H;Abaei A;Rasche V;Schön M;Boeckers TM;Grabrucker AM

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许多研究报道了自闭症谱系障碍(ASD)患者在功能、生化和形态学水平上的半球优势改变。由于许多脊椎动物也存在大脑的不对称性,我们分析了产前缺锌(PZD)小鼠(一种具有ASD样行为的小鼠模型)是否在分子和行为水平上表现出大脑侧化的改变。我们的研究结果表明,在mRNA和蛋白质水平上,标记基因的半球特异性表达在PZD小鼠中被取消。使用磁共振成像,我们发现PZD小鼠的纹状体体积增加,而总脑体积没有变化。此外,与纹状体偏侧化相关的行为模式发生改变,PZD小鼠纹状体中多巴胺受体1(DR1)的偏侧表达发生改变。我们的结论是,锌信号在大脑发育过程中有一个关键的作用,在建立大脑侧化小鼠。
A number of studies have reported changes in the hemispheric dominance in autism spectrum disorder (ASD) patients on functional, biochemical, and morphological level. Since asymmetry of the brain is also found in many vertebrates, we analyzed whether prenatal zinc deficient (PZD) mice, a mouse model with ASD like behavior, show alterations regarding brain lateralization on molecular and behavioral level. Our results show that hemisphere-specific expression of marker genes is abolished in PZD mice on mRNA and protein level. Using magnetic resonance imaging, we found an increased striatal volume in PZD mice with no change in total brain volume. Moreover, behavioral patterns associated with striatal lateralization are altered and the lateralized expression of dopamine receptor 1 (DR1) in the striatum of PZD mice was changed. We conclude that zinc signaling during brain development has a critical role in the establishment of brain lateralization in mice.
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发表时间: 2017-06-01
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