Gerontology
Clinical Section
24-Hour Thyroid-Stimulating Hormone Secretory Pattern in Elderly MenBarreca T. · Franceschini R. · Messina V. · Bottaro L. · Rolandi E.Department of Internal Medicine, University of Genoa, Italy
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Article / Publication Details
Received: February 08, 1984
Accepted: May 22, 1984
Published online: April 06, 2009
Issue release date: 1985
Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 0
ISSN: 0304-324X (Print)
eISSN: 1423-0003 (Online)
For additional information: https://www.karger.com/GER
Abstract
A chronobiological study was carried out in 10 elderly male subjects (78–83 years) to evaluate the 24-hour thyroid-stimulating hormone (TSH) secretory pattern. 10 young adult males (26–35 years) made up the control group. Hourly blood samples were drawn from each subject for a 24-hour period. TSH levels in elderly subjects showed blunted circadian fluctuations compared to those seen in young adult subjects. Mean 24-hour TSH values in elderly (3.1 ± 0.3 μU/ml) and young adult subjects (3.5 ± 0.1 μU/ml) did not differ statistically, but nighttime TSH values observed in elderly subjects (3.2 ± 0.3 μU/ml) were lower (p < 0.05) than those recorded in young adults (4.1 ± 0.1 μU/ml).
© 1985 S. Karger AG, Basel
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Article / Publication Details
Received: February 08, 1984
Accepted: May 22, 1984
Published online: April 06, 2009
Issue release date: 1985
Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 0
ISSN: 0304-324X (Print)
eISSN: 1423-0003 (Online)
For additional information: https://www.karger.com/GER
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