Cited by 98Circadian rhythm and melatoninHypothalamic control of reproductive hormonesSleep and Work-Related Fatigue

Modification of circadian body temperature rhythm during the luteal menstrual phase: role of melatonin

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Cagnacci, A., Soldani, R., Laughlin, G. A., Yen, S. S.·1996·Journal of Applied Physiology

Abstract

In women during early follicular phase (FP), the rise of melatonin at night accounts for 40% of the nocturnal core body temperature (Tc) decline. In seven normal-cycling women, the circadian rhythms of Tc and melatonin of the FP were compared with those of the luteal phase (LP). In addition, in both phases the Tc response to daytime melatonin administration was investigated. Melatonin levels were comparable during the two menstrual phases, but the nocturnal melatonin onset was delayed by 90 min in the LP (P < 0.01). This was accompanied by a delay of the nadir of the Tc circadian rhythm (P < 0.002), a 0.3 degrees C elevation (P < 0.005) of the mean 24-h value, and a 40% blunting (P < 0.002) of the amplitude. This attenuation of circadian Tc in LP women was replicated in two estrogen-treated hypogonadal women by the administration of medroxyprogesterone acetate. The daytime administration of melatonin (2.5 mg) decreased Tc during the FP (P < 0.01) but was ineffective in the LP. Present data indicate that in LP, in association with high progesterone levels, an attenuated and phase-delayed circadian Tc rhythm may, in part, be due to a reduced effect of melatonin.

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Crossref · 10.1152/jappl.1996.80.1.25

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Authors
Cagnacci, A., Soldani, R., Laughlin, G. A., & Yen, S. S.
Affiliations
University of California San Diego (US)
Venue
Journal of Applied Physiology
Published
1996-01-01
Volume
80
Issue
1
Pages
25-29
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
OpenAlex
W2169506473
Cited by
97
References
0
Citations by year
2024: 4 · 2022: 2 · 2021: 4 · 2020: 3 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 1 · 2014: 1 · 2013: 2 · 2012: 4
FWCI
1.38
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
  • National Institutes of Health (5r01hd021198-09)
  • National Heart, Lung, and Blood Institute (HL-12303-17)
  • National Center for Research Resources (MO1 RR00827, M01RR000827)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD-21198-7)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
melatonin, luteal phase, menstrual cycle, melatonin onset, progesterone, medroxyprogesterone acetate, follicular phase
MeSH terms
Adult, Body Temperature, Body Temperature Regulation, Circadian Rhythm, Estrogens, Female, Follicular Phase, Humans, Luteal Phase, Medroxyprogesterone, Melatonin, Middle Aged, Ovariectomy, Progesterone Congeners

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