阴道肠-大脑轴的本体发生
Kendall J Lough1,2, Jackson C Knox1, Sheryl S Moy3,4
1Departments of Pathology & Laboratory Medicine and Biology, Lineberger Comprehensive Cancer Center, University of North Carolina Chapel Hill, NC, USA.
bioRxiv : the preprint server for biology
|July 14, 2025
概括
这项研究揭示了肠-大脑电路如何在子宫内形成,与大脑衍生的神经营养因子 (BDNF) 关键是肠道细胞和神经元之间的连接. 这个电路调节了食,社交和行为.
科学领域:
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
- 发育生物学 发展生物学
背景情况:
- 肠-大脑沟通对于恒温至关重要,影响食欲和奖励.
- 肠道内分泌细胞 (EECs) 通过阴道结节神经元向大脑信号营养摄入.
- 这种神经上皮电路的发展和更广泛的行为作用尚未得到充分理解.
研究的目的:
- 为了研究直接肠-大脑电路的本体发生,涉及EEC和结节神经元.
- 确定大脑衍生神经营养因子 (BDNF) 在该电路的形成和功能中的作用.
- 探索电路对超越养行为的影响,包括社交性和抑制性控制.
主要方法:
- 在子宫内分析EEC-神经元相互作用.
- 评估BDNF在电路开发和动态中的作用.
- 光遗传刺激探测电路活动.
- 行为测试用于评估养,社交能力和抑制控制.
主要成果:
- 在胎儿发育过程中,EECs第一次接触结节神经元.
- BDNF对于初始接触至关重要,并调节这些神经上皮相互作用的动态.
- 电路的EEC引起的光遗传刺激依赖于BDNF介导的相互作用.
- 已识别的电路显著影响养,社交能力和抑制性行为控制.
结论:
- 这项研究定义了直接肠-大脑电路的发育起源 (本质).
- 该电路涉及EECs和阴结节神经元,在子宫内建立并由BDNF调节.
- 这种神经上皮电路在早期的生理功能和复杂的行为中发挥着基本作用,包括食,社交和行为抑制.
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