Expression of astrocytic markers aquaporin 4 and connexin 43 is altered in brains of subjects with autism.

Expression of astrocytic markers aquaporin 4 and connexin 43 is altered in brains of subjects with autism.
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DOI:
10.1002/syn.20519
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发表时间:
2008-07
期刊:
影响因子:
2.3
通讯作者:
Lee, Susanne
Lee, Susanne
中科院分区:
医学4区
文献类型:
--
作者:
Fatemi, S. Hossein;Folsom, Timothy D.;Reutiman, Teri J.;Lee, Susanne

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神经解剖学研究揭示自闭症患者存在广泛的大脑结构异常。近期,一些研究提供了自闭症中神经胶质反应和神经炎症的证据。当前这项研究调查了两种星形胶质细胞标志物:水通道蛋白4和连接蛋白43在自闭症患者大脑中是否发生改变。来自自闭症患者和匹配对照组的布罗德曼40区(BA40,顶叶皮层)、布罗德曼9区(BA9,额上回皮层)以及小脑的尸检脑组织进行了十二烷基硫酸钠 - 聚丙烯酰胺凝胶电泳(SDS - PAGE)和蛋白质印迹分析。连接蛋白43在BA9中的表达显著增加。水通道蛋白4在小脑中的表达显著降低。这些数据表明,自闭症患者大脑中异常的神经胶质 - 神经元通讯标志物(连接蛋白43和水通道蛋白4)发生了明显变化。
Neuroanatomical studies have revealed extensive structural brain abnormalities in subjects with autism. Recently, studies have provided evidence of neuroglial responses and neuroinflammation in autism. The current study investigated whether two astrocytic markers: aquaporin 4 and connexin 43 are altered in brains from subjects with autism. Postmortem brain tissues from Brodmann's Area 40 (BA40, parietal cortex), Brodmann's Area 9 (BA9, superior frontal cortex), and cerebella of subjects with autism and matched controls were subject to SDS-PAGE and western blotting. Connexin 43 expression was increased significantly in BA9. Aquaporin 4 expression was decreased significantly in cerebellum. These data suggest that changes are apparent in markers for abnormal glial-neuronal communication (connexin 43 and aquaporin 4) in brains of subjects with autism.
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