Cited by 399Circadian rhythm and melatoninSleep and Work-Related FatigueStress Responses and Cortisol

Circadian Rhythms of Epinephrine and Norepinephrine in Man*

LINSELL, C. R., LIGHTMAN, S. L., MULLEN, P. E., BROWN, M. J., CAUSON, R. C.·1985·The Journal of Clinical Endocrinology & Metabolism

Abstract

The diurnal rhythms of plasma epinephrine and norepinephrine were investigated in a group of normal young men. Sleep, posture, illumination, and food intake were monitored. Plasma epinephrine demonstrated a statistically significant diurnal rhythm, with a mean amplitude of 14 +/- 1.6 (+/- SE) pg/ml superimposed on a mean level of 43 +/- 5.3 pg/ml. The trough occurred at 03.20 h +/- 35 min. Plasma norepinephrine had a significant diurnal rhythm, with a mean amplitude of 111 +/- 19 pg/ml superimposed on a mean level of 413 +/- 25 pg/ml, with the trough occurring at 02.20 h +/- 30 min. There was a significant correlation between the two rhythms at zero phase shift, with a pooled value for the group of r = 0.49. Epinephrine levels had no direct relationship to sleep or posture, whereas norepinephrine levels were significantly higher with upright posture and higher when the men were awake than when asleep. Our results indicate that circadian variations in the sympathetic-adrenal medullary system are not explained by a single controlling influence and that the norepinephrine rhythm can be accounted for as a direct response to changes in posture and sleep, whereas the epinephrine rhythm is probably controlled by a circadian oscillator.

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Crossref · 10.1210/jcem-60-6-1210

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24 of 24 references verified0 citation errors · 0 not checkable

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  • In a small study of eight lean males, plasma catecholamines were consistently lower during the night with no differences among sleep stages.

    “In a small study of eight lean males, plasma catecholamines were consistently lower during the night with no differences among sleep stages (Fig. 2).73”

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Authors
LINSELL, C. R., LIGHTMAN, S. L., MULLEN, P. E., BROWN, M. J., & CAUSON, R. C.
Affiliations
University of Otago (NZ)
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
1985-06
Volume
60
Issue
6
Pages
1210-1215
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1976632402
Cited by
399
References
24
Citations by year
2026: 5 · 2025: 16 · 2024: 11 · 2023: 11 · 2022: 12 · 2021: 14 · 2020: 13 · 2019: 3 · 2018: 8 · 2017: 17 · 2016: 13 · 2015: 10 · 2014: 7 · 2013: 11 · 2012: 12
FWCI
5.26
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
circadian rhythm, diurnal variation, plasma epinephrine, plasma norepinephrine, sympathoadrenal system, sleep, posture, upright posture, circadian clock, dietary intake
MeSH terms
Blood Specimen Collection, Circadian Rhythm, Eating, Epinephrine, Humans, Male, Norepinephrine, Posture, Sleep

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