Oxygen and Carbon Dioxide Rhythms Are Circadian Clock Controlled and Differentially Directed by Behavioral Signals

Yaarit Adamovich, Benjamin Ladeuix, Jonathan Sobel, Gal Manella, Adi Neufeld-Cohen, Mohammad H. Assadi, Marina Golik, Yael Kuperman, Ariel Tarasiuk, Maarten P. Koeners, Gad Asher

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Daily rhythms in animal physiology are driven by endogenous circadian clocks in part through rest-activity and feeding-fasting cycles. Here, we examined principles that govern daily respiration. We monitored oxygen consumption and carbon dioxide release, as well as tissue oxygenation in freely moving animals to specifically dissect the role of circadian clocks and feeding time on daily respiration. We found that daily rhythms in oxygen and carbon dioxide are clock controlled and that time-restricted feeding restores their rhythmicity in clock-deficient mice. Remarkably, day-time feeding dissociated oxygen rhythms from carbon dioxide oscillations, whereby oxygen followed activity, and carbon dioxide was shifted and aligned with food intake. In addition, changes in carbon dioxide levels altered clock gene expression and phase shifted the clock. Collectively, our findings indicate that oxygen and carbon dioxide rhythms are clock controlled and feeding regulated and support a potential role for carbon dioxide in phase resetting peripheral clocks upon feeding. Adamovich et al. show that the daily regulation of oxygen consumption and carbon dioxide release is regulated by the circadian clock. Time-restricted feeding restores oxygen and carbon dioxide rhythms in clock mutants. Their findings also support a potential role for carbon dioxide in phase resetting of peripheral clocks upon feeding

Original languageEnglish
Pages (from-to)1092-1103.e3
JournalCell Metabolism
Volume29
Issue number5
DOIs
StatePublished - 7 May 2019

Keywords

  • carbon dioxide
  • circadian clocks
  • metabolic cages
  • metabolism
  • oxygen
  • phase resetting
  • respiration
  • time restricted feeding

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