The role of GABA in the regulation of GnRH neurons.

The role of GABA in the regulation of GnRH neurons.
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DOI:
10.3389/fnins.2014.00387
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发表时间:
2014
影响因子:
4.3
通讯作者:
Nabekura J
Nabekura J
中科院分区:
医学2区
文献类型:
--
作者:
Watanabe M;Fukuda A;Nabekura J

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促性腺激素释放激素(GnRH)神经元形成生殖中枢调节的最终共同途径。γ-氨基丁酸(GABA)一直被认为是GnRH神经元的主要调节因子之一。尽管GABA在成熟的成人中枢神经系统中是一种典型的抑制性神经递质,但大多数成熟的GnRH神经元显示出由GABA兴奋的不同寻常的特征。虽然许多报道已经对GABA对GnRH神经元活动的贡献提供了许多见解,但GABA对GnRH神经元的兴奋作用的确切生理作用仍然不清楚。本文简要介绍了GABA信号在促性腺激素释放激素神经元活动中的作用。我们还讨论了神经递质和神经调节剂对GABA信号的调节,以及GnRH神经元GABA能输入在生殖生理和病理中的功能后果。
Gonadotropin-releasing hormone (GnRH) neurons form the final common pathway for the central regulation of reproduction. Gamma-amino butyric acid (GABA) has long been implicated as one of the major players in the regulation of GnRH neurons. Although GABA is typically an inhibitory neurotransmitter in the mature adult central nervous system, most mature GnRH neurons show the unusual characteristic of being excited by GABA. While many reports have provided much insight into the contribution of GABA to the activity of GnRH neurons, the precise physiological role of the excitatory action of GABA on GnRH neurons remains elusive. This brief review presents the current knowledge of the role of GABA signaling in GnRH neuronal activity. We also discuss the modulation of GABA signaling by neurotransmitters and neuromodulators and the functional consequence of GABAergic inputs to GnRH neurons in both the physiology and pathology of reproduction.
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