...
首页> 外文期刊>Frontiers in neuroendocrinology >Vasopressin and oxytocin release within the brain: a dynamic concept of multiple and variable modes of neuropeptide communication.
【24h】

Vasopressin and oxytocin release within the brain: a dynamic concept of multiple and variable modes of neuropeptide communication.

机译:加压素和催产素在大脑内释放:神经肽通讯的多种和可变模式的动态概念。

获取原文
获取原文并翻译 | 示例
           

摘要

As exemplified particularly with vasopressin and oxytocin, release of neuropeptides within the brain occurs from dendrites, somata, and axons of neurosecretory neurons; mechanisms include activation of intracellular Ca(2+) stores, changed strength of synaptic input and altered interaction between transcription factors and gene promoters. Upon demand, both diffuse spread of neuropeptides in the extracellular fluid following dendritic release and focal release from axonal terminals may contribute to regionally and temporally varying combinations of neuromodulator and neurotransmitter actions, thus providing a theoretically unlimited variability in interneuronal signaling. Thus, instead of favoring volume or synaptic transmission following central neuropeptide release, a more dynamic concept is presented with multiple and variable modes of release and communication. This concept considers neuropeptides in the extracellular fluid of the brain rather than those in the cerebrospinal fluid or plasma as primary signals, triggering a variety of receptor-mediated effects, including those underlying behavioral and neuroendocrine regulation and psychopathology.
机译:如血管加压素和催产素所举例说明的那样,脑内神经肽的释放是由神经分泌神经元的树突,躯体和轴突引起的。机制包括细胞内Ca(2+)存储的激活,突触输入强度的改变以及转录因子和基因启动子之间相互作用的改变。根据需要,树突状释放和轴突末端的局灶性释放后,神经肽在细胞外液中的扩散扩散都可能有助于神经调节剂和神经递质作用的区域和时间变化组合,从而在神经元间信号传导中提供了理论上无限的可变性。因此,代替促进中枢神经肽释放后的体积或突触传递,而是提出了具有更多和可变的释放和交流方式的更动态的概念。该概念将大脑细胞外液中的神经肽而不是脑脊髓液或血浆中的神经肽视为主要信号,从而触发各种受体介导的作用,包括潜在的行为和神经内分泌调节以及心理病理学。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号