间歇性普罗波暴露诱导神经发育在人类大脑器官的改变
Sudena Wang1, Chloe Hall2, Yong Wang1,3
1Department of Anesthesiology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany.
Cellular and molecular neurobiology
|January 26, 2026
概括
在怀孕早期间歇性暴露于醇 (IPE) 可能会加速胎儿大脑的成熟. 这项对人类大脑器官 (HBOs) 的研究表明,由于麻醉暴露,可能存在发育偏差.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 毒理学 毒理学 毒理学
背景情况:
- 怀孕期间使用麻醉剂引起了对胎儿大脑发育的担忧.
- 人类大脑器官 (HBOs) 提供了一个模型来研究这些 in vitro 效应.
研究的目的:
- 为了研究间歇性普罗波暴露 (IPE) 对人类大脑器官发育的影响.
- 评估IPE后的神经发育和突触基因表达的变化.
主要方法:
- 来自H1胚胎干细胞的人类大脑器官 (HBOs) 在早期 (47-50天体外) 或晚期 (77-80天体外) 发育阶段暴露于醇 (50μM).
- 在60或90天内,通过多电极阵列记录和RNA测序在体外分析器官.
- 通过增长和乳酸释放测量来评估神经毒性.
主要成果:
- 在HBOs中,醇暴露没有诱导神经毒性.
- 早期IPE在体外60天后导致神经元活动增加,晚期IPE在体外90天后没有看到这种效果.
- IPE上调了与神经发育和突触功能相关的基因,与自然发育基因表达模式相吻合.
结论:
- 早期间歇性波暴露可能会加速人类大脑器官中的大脑成熟.
- 这些发现表明,产前麻醉暴露可能会改变胎儿正常大脑发育轨迹.
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