کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6273917 | 1614815 | 2014 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neuregulin 1/ErbB4 enhances synchronized oscillations of prefrontal cortex neurons via inhibitory synapses
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کلمات کلیدی
CTLHEPESeGFPEGTAaCSFIPSCs2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid - 2- [4- (2-hydroxyethyl) piperazin-1-yl] ethanesulfonic acidethylene glycol tetraacetic acid - اتیلن گلیکول تتراستیک اسیدkainic acid - اسید کرییکElectroencephalogram - الکتروانسفالوگرافیinhibitory postsynaptic currents - جریانهای پسینپتیک مهارکنندهfast spiking - سریع اسپایکینگinterval - فاصلهartificial cerebrospinal fluid - مایع مغزی نخاعی مصنوعیEEG - نوار مغزیenhanced green fluorescent protein - پروتئین فلورسنت سبز افزایش یافته استControl - کنترل
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Both neuregulin 1 (NRG1) and its receptor ErbB4 are susceptibility genes for schizophrenia. Reduced synchronization of evoked oscillations in several cortical regions, especially in the prefrontal cortex, is associated with the core symptoms of schizophrenia. Recent studies have reported that NRG1 may affect the hippocampal oscillations. However, the role of NRG1/ErbB4 signaling in the synchronization of neurons in the prefrontal cortex is unclear. Here, we found that NRG1 enhanced the synchrony of pyramidal neurons via presynaptic interneurons. Meanwhile, NRG1 also increased the synchrony between pairs of fast-spiking interneurons and pairs of fast-spiking and non-fast-spiking interneurons in the prefrontal cortex, and this effect was mediated by ErbB4 receptors. Moreover, the NRG1-enhanced synchrony of interneurons was through their mutually-inhibitory synapses but not electrical coupling. Furthermore, kainate-induced gamma oscillations in vivo were enhanced by NRG1 and did not change in Dlx5/6-ErbB4â/â mice in which the ErbB4 receptors were specifically knocked out in interneurons of the frontal brain. Overall, our findings suggested that NRG1/ErbB4 signaling plays an important role in the synchronized oscillations of the whole network in the prefrontal cortex that are impaired in schizophrenia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 261, 7 March 2014, Pages 107-117
Journal: Neuroscience - Volume 261, 7 March 2014, Pages 107-117
نویسندگان
X.-J. Hou, K.-M. Ni, J.-M. Yang, X.-M. Li,