Cited by 567Circadian rhythm and melatoninMetabolomics and Mass Spectrometry StudiesSleep and Work-Related Fatigue

The human circadian metabolome

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Dallmann, Robert, Viola, Antoine U., Tarokh, Leila, Cajochen, Christian, Brown, Steven A.·2012·Proceedings of the National Academy of Sciences

Abstract

The circadian clock orchestrates many aspects of human physiology, and disruption of this clock has been implicated in various pathologies, ranging from cancer to metabolic syndrome and diabetes. Although there is evidence that metabolism and the circadian clockwork are intimately linked on a transcriptional level, whether these effects are directly under clock control or are mediated by the rest–activity cycle and the timing of food intake is unclear. To answer this question, we conducted an unbiased screen in human subjects of the metabolome of blood plasma and saliva at different times of day. To minimize indirect effects, subjects were kept in a 40-h constant routine of enforced posture, constant dim light, hourly isocaloric meals, and sleep deprivation. Under these conditions, we found that ∼15% of all identified metabolites in plasma and saliva were under circadian control, most notably fatty acids in plasma and amino acids in saliva. Our data suggest that there is a strong direct effect of the endogenous circadian clock on multiple human metabolic pathways that is independent of sleep or feeding. In addition, they identify multiple potential small-molecule biomarkers of human circadian phase and sleep pressure.

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Authors
Dallmann, R., Viola, A. U., Tarokh, L., Cajochen, C., & Brown, S. A.
Affiliations
  • University of Zurich (CH)
  • University of Basel (CH)
Venue
Proceedings of the National Academy of Sciences
Published
2012-01-31
Volume
109
Issue
7
Pages
2625-2629
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2122927821
Cited by
566
References
40
Citations by year
2026: 18 · 2025: 31 · 2024: 35 · 2023: 47 · 2022: 29 · 2021: 38 · 2020: 48 · 2019: 33 · 2018: 37 · 2017: 47 · 2016: 47 · 2015: 58 · 2014: 41 · 2013: 34 · 2012: 23
FWCI
22.40
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion)
  • BORIS (University Library Bern) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
  • National Science Foundation
  • Alexander von Humboldt-Stiftung
  • Velux Stiftung
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • Hartmann Müller-Stiftung für Medizinische Forschung
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
circadian clock, plasma metabolites, saliva metabolites, circadian rhythm, fatty acids, amino acids, constant routine, sleep deprivation, sleep pressure
MeSH terms
Circadian Rhythm, Humans, Light, Saliva, Metabolome

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