Circadian thyrotropin variations are preserved in normal pregnant women.

Abstract:

:Serum thyrotropin (TSH) concentration circadian rhythm is abolished in many endocrine and non-endocrine diseases. In the present study we have measured serum TSH concentration over 24 h every 2 h in second and third trimester pregnant women. During the 24-h period, serum free thyroxine and free triiodothyronine concentrations did not change significantly. In contrast, serum TSH concentrations demonstrated significant circadian variations both in the second and third trimester pregnant women (p < 0.02 and p < 0.005, respectively). In summary, second and third trimester pregnancy is associated with a normal circadian TSH rhythm.

journal_name

Eur J Endocrinol

authors

Roti E,Bartalena L,Minelli R,Salvi M,Gardini E,Pistolesi A,Martino E,Braverman LE

doi

10.1530/eje.0.1330071

subject

Has Abstract

pub_date

1995-07-01 00:00:00

pages

71-4

issue

1

eissn

0804-4643

issn

1479-683X

journal_volume

133

pub_type

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