摘要机体的青春发育及生殖过程受下丘脑-垂体-性腺轴的调控.下丘脑促性腺激素释放激素(GnRH)神经元活化导致GnRH分泌增多是青春期启动的触发因素.GnRH神经元功能活动的调节机制非常复杂,有多种因子影响GnRH的分泌.谷氨酸作为最主要的兴奋性神经递质,可以通过多种机制促进GnRH的分泌.近年来有研究发现NELL2可能通过调节谷氨酸的分泌或其他机制影响GnRH的分泌,进而影响青春期启动.NELL2在神经生长、神经分化和维护神经可塑性以及突触运输等过程中发挥重要作用.

abstractsThe puberty and reproduction are regulated by the hypothalamic-pituitary-gonadal axis. The activation of hypothalamic gonadotropin-releasing hormone (GnRH) neurons and an increase in GnRH is critical for the initiation of puberty. The mechanism of GnRH regulation for neurons activity is complicated, because many different factors can affect the secretion of GnRH. Glutamate is the main excitatory neurotransmitter, which can promote the secretion of GnRH through a variety of pathways. In recent years, relevant studies showed that NELL2 may influence the secretion of GnRH by regulating the secretion of glutamate or through other pathways,thereby affecting the onset of puberty. So NELL2 plays an important role in promoting neuronal growth,differentiation, neuronal plasticity maintenance and synapse transportation etc.