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Horm Metab Res 1986; 18(7): 500-501
DOI: 10.1055/s-2007-1012358
DOI: 10.1055/s-2007-1012358
RAPID COMMUNICATIONS
© Georg Thieme Verlag, Stuttgart · New York
No Monthly Variations in Serum Levels of Thyroid Hormones in Human Males
Further Information
Publication History
1986
1986
Publication Date:
14 March 2008 (online)
![](https://www.thieme-connect.de/media/hmr/198607/lookinside/thumbnails/10.1055-s-2007-1012358-1.jpg)
Summary
There have been very few reports on rhythmic variation in thyroid hormone concentrations with a periodicity of 4-6 weeks. In an attempt to evaluate whether such a rhythm is a general phenomenon we studied ten healthy male students with weekly blood samples over 12 weeks for T4, T3 and TSH. No rhythmicity could be demonstrated.
Key-Words
Biological rhythms - Thyroxine - Triiodothyronine - Thyrotropin