Author:
Reinberg Alain,Lagoguey Michel,Cesselin François,Touitou Yvan,Legrand Jean-Claude,Delassalle Annick,Antreassian Joséphine,Lagoguey Alenka
Abstract
ABSTRACT
Every other month (plasma) and every month (urine) circadian rhythms were documented during the course of 14 months. Annual changes were validated in the 24 h mean of: plasma FSH (annual crest time: February), LH (March), thyroxine (September), cortisol (February), renin activity (April), testosterone (October), urinary 17-hydroxycorticosteroids (March), aldosterone (March), potassium (May) as well as sexual activity (September) [self-recorded daily]. Plasma prolactin did not show an annual variation. In addition, annual changes in the circadian acrophase (crest time location in the 24 h scale) occurred for some of the documented variables: plasma thyroxine, cortisol, renin activity, testosterone, urinary aldosterone and potassium.
Subject
Endocrinology,General Medicine,Endocrinology, Diabetes and Metabolism
Cited by
140 articles.
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