Diurnal variation in ultrasonographic dimensions of thyroid gland

Aim: To evaluate thyroid volume at the circadian nadir and peak of TSH levels. Subjects and methods: Serum TSH, fT3 and fT4 levels and thyroid volumes were measured at 08.00 am and 24.00 in 55 (20 male, 35 female) euthyroid healthy individuals. Results: Mean TSH level were significantly lower at 08....

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Bibliographic Details
Published in:Biological rhythm research 2005-10, Vol.36 (4), p.361-367
Main Authors: Gursoy, Gul, Cakir, Bekir, Ozturk, Banu, Kacar, Mahmut, Guler, Serdar, Gul, Kamile, Topaloğlu, Oya, Yucel, Dogan
Format: Article
Language:English
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Summary:Aim: To evaluate thyroid volume at the circadian nadir and peak of TSH levels. Subjects and methods: Serum TSH, fT3 and fT4 levels and thyroid volumes were measured at 08.00 am and 24.00 in 55 (20 male, 35 female) euthyroid healthy individuals. Results: Mean TSH level were significantly lower at 08.00 h than at at 24.00 h (1.95 ± 1.29 vs 2.52 ± 1.5 μIU/ml, respectively; p 
ISSN:0929-1016
1744-4179
DOI:10.1080/09291010500170525