Physiological Factors Influencing the Nyctohemeral Pattern of TSH

  • J. Golstein
  • L. Vanhaelst
  • E. Van Cauter
Part of the Developments in Endocrinology book series (DIEN, volume 1)


Many studies describe the nyctohemeral pattern of TSH, but important variations in the times of occurrence of circadian maxima have been reported (1–5). These studies generally involve young male subjects and the circadian rhythms are examined regardless of season. Here are reported data obtained when sex and seasons are taken into account.


Sleep Onset Sleep Period Anti Serotonin Polar Graph Young Male Subject 
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Copyright information

© ECSC, EEC, EAEC, Brussels-Luxembourg 1981

Authors and Affiliations

  • J. Golstein
    • 1
  • L. Vanhaelst
    • 2
  • E. Van Cauter
    • 1
  1. 1.Institut de Recherche Interdisciplinaire en Biologie Humaine et Nucléaire (L.M.N.)Belgium
  2. 2.Division of Endocrinology, Akademische Ziekenhuis, School of MedicineUniversities of BrusselsBelgium

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