PUBLICATION

Sleep and its regulation in zebrafish

Authors
Zhdanova, I.V.
ID
ZDB-PUB-110603-27
Date
2011
Source
Reviews in the Neurosciences   22(1): 27-36 (Review)
Registered Authors
Zhdanova, Irina
Keywords
circadian, homeostatic, hypocretin, melatonin, sleep, zebrafish
MeSH Terms
  • Animals
  • Behavior, Animal*
  • Brain/anatomy & histology
  • Brain/metabolism
  • Circadian Rhythm/genetics
  • Circadian Rhythm/physiology
  • Motor Activity
  • Sleep/physiology*
  • Zebrafish/anatomy & histology
  • Zebrafish/physiology*
PubMed
21615259 Full text @ Rev. Neurosci.
Abstract
The function of sleep remains a central enigma of modern biology, in spite of the obvious importance of sleep for normal physiology and cognition. The zebrafish has emerged as a promising new model for studying sleep, its changes with age, and the impact of sleep alterations on cognitive function. Recent studies of this diurnal vertebrate have provided new insights into the dual role of the pineal hormone melatonin and its receptors, regulating sleep in diurnal vertebrates through both homeostatic and circadian mechanisms. Research in zebrafish has also revealed interactions between melatonin and the hypocretin/orexin system, another important sleep-wake modulator. Future investigations should benefit from the conservation in zebrafish of mechanisms that regulate normal sleep, our extensive knowledge of their molecular biology, the availability of multiple transgenic and mutant phenotypes, and the feasibility of applying sensitive in vivo imaging techniques to record sleep-related neuronal activity in these optically transparent subjects. The established sensitivity of zebrafish to many pharmacological hypnotics should also contribute to the development of new, safe and effective sleep medications.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping