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首页> 外文期刊>Frontiers in neuroendocrinology >Neuroendocrinology of reproduction: Is gonadotropin-releasing hormone (GnRH) dispensable?
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Neuroendocrinology of reproduction: Is gonadotropin-releasing hormone (GnRH) dispensable?

机译:繁殖神经病学:是否可分配促进促性腺激素释放激素(GNRH)?

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摘要

Gonadotropin releasing hormone (GnRH) is a highly conserved neuroendocrine decapeptide that is essential for the onset of puberty and the maintenance of the reproductive state. First identified in mammals, the GnRH signaling pathway is found in all classes of vertebrates; homologues of GnRH have also been identified in invertebrates. In addition to its role as a hypothalamic releasing hormone, GnRH has multiple functions including modulating neural activity within specific regions of the brain. These various functions are mediated by multiple isoforms, which are expressed at diverse locations within the central nervous system. Here we discuss the GnRH signaling pathways in light of new reports that reveal that some vertebrate genomes lack GnRHl. Not only do other isoforms of GnRH not compensate for this gene loss, but elements upstream of GnRHl, including kis-speptins, appear to also be dispensable. We discuss routes that may compensate for the loss of the GnRHl pathway.
机译:促性腺激素释放激素(GNRH)是一种高度保守的神经内分泌抑制肽,对于青春期发作和维持生殖状态至关重要。 首先在哺乳动物中鉴定,在所有类别的脊椎动物中发现GNRH信号通路; 在无脊椎动物中也鉴定了GNRH的同源物。 除了其作为下丘脑释放激素的作用外,GNRH还具有多种功能,包括调节大脑的特定区域内的神经活动。 这些各种功能由多种同种型介导,其在中枢神经系统内的不同地点表示。 在这里,我们鉴于新的报告,讨论了GNRH信号传导途径,揭示了一些脊椎动物基因组缺乏GNRHL。 不仅是GNRH的其他同种型而不补偿这种基因损失,但在包括KIS杂蛋白的GNRHL上游的元素似乎也可分配。 我们讨论可能弥补丧失GNRHL途径的路线。

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