开发中的脏的感觉和交感内的全面映射
Pierre-Emmanuel Y N'Guetta1, Sarah R McLarnon1, Adrien Tassou2
1Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
脏内化始于胚胎发育期间,感官和交感神经纤维与动脉和脏一起生长. 这项研究绘制了精确的时间和神经类型,这些神经发展以控制功能.
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
- 脏生理学 脏生理学
背景情况:
- 脏依赖于来自交感和感觉神经的神经控制来实现平衡.
- 内置的发育过程在很大程度上仍然没有被描述.
研究的目的:
- 为了绘制脏内置的解剖发展图.
- 为了识别发育中的脏神经的神经的类型和起源.
主要方法:
- 光片和共聚焦显微镜用于解剖绘图.
- 免疫组织化学用于识别神经元标记物 (例如,TH+,CGRP+,TRPV1+,PIEZO2+).
- 逆行追踪以确定感官神经元的起源.
主要成果:
- 脏内置开始于胚胎13.5天,与动脉发育保持一致.
- 交感 (TH+) 和感觉 (CGRP+,物质P+,TRPV1+,PIEZO2+) 纤维都刺激脏.
- 感官内置源于背部根结组织T10-L2.2.
- 轴突的生长在产后继续,在人类脏中观察到类似的模式.
结论:
- 这项研究提供了内置发育的全面地图.
- 识别了神经元群体的时间出现和多样性,这些神经元群体内在脏.
- 建立了理解从发育开始对功能神经调节的基础.
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