暴露于南会通过影响下丘脑神经网络来扰乱SD大鼠的青春期发作
Zixuan Chen1, Qin Zhang1, Tianwenjing Huang1
1Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing, 401331, PR China.
Environmental pollution (Barking, Essex : 1987)
|August 2, 2025
概括
多环芳 (PAH) 和 (PHE) 一样,通过破坏神经路径,延迟大鼠的青春期. 这项研究揭示了PHE诱导的两性青春期中断背后的潜在机制.
科学领域:
- 环境毒理学环境毒理学
- 生殖内分泌学 生殖内分泌学
- 发展生物学 发展生物学
背景情况:
- 多环芳 (PAH) 是广泛存在的环境污染物,与健康风险有关.
- 流行病学研究表明,PAH暴露和受损的青春期发育之间存在相关性.
研究的目的:
- 在大鼠模型中研究PAH的代表性PAH (PHE) 对青春期开始和进展的影响.
- 为了阐明PHE诱导的青春期延迟的潜在分子机制.
主要方法:
- 在21天的时间里,奶老鼠接受了PHE或对照车辆.
- 在两性中评估了青春期的发展,激素水平和生殖器官状态.
- 分析了关键青春期神经路组件 (KISS1,GPR54,TAC3) 的基因和蛋白质表达.
- 使用暴露于PHE的GT1-7细胞进行了体外研究.
- 进行了转录组分析,以确定受影响的途径.
主要成果:
- 在雌性和雄性大鼠中,PHE暴露诱导了显著的青春期延迟.
- 雌性大鼠表现出卵泡衰退,而雄性大鼠表现出受损的精子细胞成熟.
- KISS1,GPR54和TAC3的表达减少,这表明神经路的破坏.
- 转录组分析显示,女性的神经活性连接体-受体相互作用发生变化,男性免疫通路发生变化.
结论:
- 通过损害神经信号通路,南暴露会扰乱大鼠的青春期发育.
- 在男性和女性中,PHE会影响不同的分子通路,导致青春期延迟.
- 这项研究提供了关于PAHs对生殖健康的不良影响的机制性见解.
关键词:
在GT1-7中,我们可以看到GT1-7的特点.亲吻1/GPR54 的时间KNDy KNDy 在线播放神经活性联体受体相互作用途径的神经活性联体受体相互作用途径.这些PAHs是PAH.青春期 青春期 青春期更多相关视频
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