PUBLICATION

Homeostatic response to sleep/rest deprivation by constant water flow in larval zebrafish in both dark and light conditions

Authors
Aho, V., Vainikka, M., Puttonen, H.A., Ikonen, H.M., Salminen, T., Panula, P., Porkka-Heiskanen, T., Wigren, H.K.
ID
ZDB-PUB-170303-6
Date
2017
Source
Journal of sleep research   26(3): 394-400 (Journal)
Registered Authors
Panula, Pertti, Puttonen, Henri
Keywords
Danio rerio, cyclohexyladenosine, escape response, sleep deprivation, sleep homeostasis
MeSH Terms
  • Adenosine/antagonists & inhibitors
  • Animals
  • Arousal/physiology
  • Arousal/radiation effects
  • Caffeine/pharmacology
  • Circadian Rhythm/physiology
  • Circadian Rhythm/radiation effects
  • Darkness*
  • Homeostasis/physiology*
  • Homeostasis/radiation effects
  • Larva/physiology
  • Larva/radiation effects
  • Light
  • Models, Animal
  • Phenylalanine/analogs & derivatives
  • Phenylalanine/pharmacology
  • Receptor, Adenosine A1/metabolism
  • Reflex, Startle/physiology
  • Reflex, Startle/radiation effects
  • Rest/physiology
  • Sleep/physiology*
  • Sleep/radiation effects*
  • Sleep Deprivation/physiopathology*
  • Wakefulness/physiology
  • Wakefulness/radiation effects
  • Water Movements*
  • Zebrafish/growth & development*
  • Zebrafish/physiology*
PubMed
28251715 Full text @ J Sleep Res
Abstract
Sleep-or sleep-like states-have been reported in adult and larval zebrafish using behavioural criteria. These reversible quiescent periods, displaying circadian rhythmicity, have been used in pharmacological, genetic and neuroanatomical studies of sleep-wake regulation. However, one of the important criteria for sleep, namely sleep homeostasis, has not been demonstrated unequivocally. To study rest homeostasis in zebrafish larvae, we rest-deprived 1-week-old larvae with a novel, ecologically relevant method: flow of water. Stereotyped startle responses to sensory stimuli were recorded after the rest deprivation to study arousal threshold using a high-speed camera, providing an appropriate time resolution to detect species-specific behavioural responses occurring in a millisecond time-scale. Rest-deprived larvae exhibited fewer startle responses than control larvae during the remaining dark phase and the beginning of the light phase, which can be interpreted as a sign of rest homeostasis-often used as equivalent of sleep homeostasis. To address sleep homeostasis further, we probed the adenosinergic system, which in mammals regulates sleep homeostasis. The adenosine A1 receptor agonist, cyclohexyladenosine, administered during the light period, decreased startle responses and increased immobility bouts, while the adenosine antagonist, caffeine, administered during the dark period, decreased immobility bouts. These results suggest that the regulation of sleep homeostasis in zebrafish larvae consists of the same elements as that of other species.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping