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The Clock in the Brain: Neurons, Glia, and Networks in Daily Rhythms

  • Emily SlatEmail author
  • G. Mark FreemanJr.Email author
  • Erik D. HerzogEmail author
Chapter
Part of the Handbook of Experimental Pharmacology book series (HEP, volume 217)

Abstract

The master coordinator of daily schedules in mammals, located in the ventral hypothalamus, is the suprachiasmatic nucleus (SCN). This relatively small population of neurons and glia generates circadian rhythms in physiology and behavior and synchronizes them to local time. Recent advances have begun to define the roles of specific cells and signals (e.g., peptides, amino acids, and purine derivatives) within this network that generate and synchronize daily rhythms. Here we focus on the best-studied signals between neurons and between glia in the mammalian circadian system with an emphasis on time-of-day pharmacology. Where possible, we highlight how commonly used drugs affect the circadian system.

Keywords

SCN VIP GRP AVP Little SAAS GABA ATP 

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© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of BiologyWashington UniversitySt. LouisUSA

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