导航中央催产素运输:已知的领域和未知领土
Deniz Parmaksiz1,2, Yongsoo Kim1,2
1Department of Neural and Behavioral Sciences, College of Medicine, The Pennsylvania State University, Hershey, PA, USA.
概括
催产素 (Oxt) 在大脑中使用复杂的运输机制,包括CSF和神经血管路径,进行广泛的信号传输. 了解这些途径可以提高对Oxt活动监管的洞察力.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 生理学 生理学 生理学
背景情况:
- 催产素 (Oxt) 是一种关键的神经和激素,它调解各种生理过程.
- 在大脑中,Oxt通过轴突和体突释放,迅速地对特定区域产生特定作用.
- 额外的Oxt分发通过脑脊液 (CSF) 和神经血管接口发生,从而实现更慢,更广泛的信号传输.
研究的目的:
- 审查中枢神经系统 (CNS) 中催产素运输和作用的各种模式.
- 为了强调周血管空间,血脑屏障 (BBB) 和围腔器官在Oxt分布中的作用.
- 阐明在调节Oxt活动时循环血液,脑液和大脑外围细胞之间的相互作用.
主要方法:
- 文献综述侧重于中枢神经系统中催产素运输机制.
- 围血管空间在CSF流动和Oxt扩散中的作用分析.
- 检查血脑屏障 (BBB) 和周腹器官在调节Oxt循环中的作用.
主要成果:
- 周血管空间对于中枢神经系统内的Oxt扩散和分布至关重要,经历Oxt介导的结构变化.
- 在大多数区域,BBB调节了血液和大脑围膜之间的Oxt运动.
- 周心器官缺乏功能性的BBB,因此可以促进Oxt扩散和对外周信号的反调节.
结论:
- 催产素利用超出直接神经元释放的多种运输途径,包括CSF和周血管空间.
- BBB和周周器官在控制Oxt对CNS的访问和行动方面发挥着不同的,至关重要的作用.
- 认识这些复杂的运输机制加深了我们对催产素系统传播和调节的理解.
关键词:
轴突释放是指轴突的释放.血脑屏障是什么意思大脑脊髓液中的脑脊液.周腹器官 周腹器官 周腹器官在下丘脑中,下丘脑神经内分泌学神经内分泌学神经细胞系统的神经细胞系统.神经血管系统的形成.催产素是一种催产素.在周围的体空间.索马托登德里特释放的部分运输机制的运输机制.传输量 传输量 传输量 传输量更多相关视频
11:04Unraveling the Role of Discrete Areas of the Rat Brain in the Regulation of Ovulation through Reversible Inactivation by Tetrodotoxin Microinjections
Published on: September 3, 2020
3.0K
12:09Yeast Luminometric and Xenopus Oocyte Electrophysiological Examinations of the Molecular Mechanosensitivity of TRPV4
Published on: December 31, 2013
10.1K
相关概念视频
Neurotransmitters
849
Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
849
Transcytosis of IgG
2.7K
Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
2.7K
Carrier-Mediated Transport
318
Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
318
Secondary Active Transport
118.8K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
118.8K
Oxygen Transport in the Blood
2.6K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
2.6K
Transport Across the Golgi
4.2K
While it is unclear how molecules move between adjacent Golgi cisternae, it is apparent that the molecules move from cis- cisterna, the entry face, to the trans- cisterna, the exit face. Experiments initially suggested vesicles that bud from one cisterna and fuse with the next cisterna to transport proteins between the cisternae. This vesicular transport model describes the Golgi apparatus as a relatively static structure with a unique enzyme composition in each cisterna. Molecules are...
4.2K
