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在雌性大鼠中,Grid1调节了青春期的开始

Jing Ye^1,2, Xiaoqian Li^1,2, Zhihao Pan^1,2

¹Anhui Provincial Laboratory of Animal Genetic Resources Protection and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Anhui, China.

The Journal of veterinary medical science

|March 13, 2024

概括

格力1是一种谷氨酸受体子单元,通过调节下丘脑基因表达和激素水平,影响雌性大鼠的青春期发作. 它的击倒加速了青春期,但没有影响生殖能力.

科学领域:

神经内分泌学神经内分泌学
生殖生物学生殖生物学
分子生物学分子生物学

背景情况:

谷氨酸离子体受体三角形类型子单元1 (Grid1) 在神经元功能中起作用.
调节青春期开始的精确机制是复杂的,涉及下丘脑信号通路.

研究的目的:

为了研究 Grid1 在雌性大鼠青春期开始中的作用.
为了确定下丘脑中的Grid1表达如何影响关键的生殖荷尔蒙和基因.

主要方法:

在不同青春期阶段的老鼠下丘脑中量化 Grid1 mRNA 和蛋白质表达.
在初级下丘脑神经元中,Grid1在实验室内被淘汰.
在体内内注射一种lentiviral载体以击倒Grid1.
对Gnrh,Rfrp-3和孕激素 (P4) 水平的分析.
卵巢组织学和生殖能力的评估.

主要成果:

与青春期老鼠相比,青春期前老鼠的Grid1表达显著较低.
在下丘脑神经元中的Grid1敲击下降了Rfrp-3 mRNA和增加了Gnrh mRNA.
静脉注射LV-Grid1加速了阴道开口,增加了下丘脑Gnrh mRNA,减少了Rfrp-3 mRNA,降低了血清孕激素水平.
卵巢分析显示LV-Grid1组中主要是初级和二级卵泡,对整体生殖能力没有显著影响.

结论:

下丘脑中的Grid1表达与雌性大鼠的青春期发作有关.
格子1可以通过调节下丘脑中的Gnrh和Rfrp-3表达来调节青春期的开始,并影响孕激素水平.
网格1敲击加速青春期,但不会损害生殖能力.

关键词:

网格1 网格1 网格1 青春期的青春期,就是青春期.鼠标鼠标鼠标鼠标鼠标生殖性表现的生殖性表现.

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