| Thyroid function in the third trimester of pregnancy and after delivery in an area of adequate iodine intake. | |
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MedLine Citation:
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PMID: 20965505 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: To establish whether the higher thyroid stimulating hormone (TSH) levels and lower levels of the 2 free thyroid hormones noted toward the end of pregnancy are in relation with iodine supply. METHODS: We compared these hormones' levels in the third trimester of pregnancy and 4months after delivery in 116 consecutive women without thyroid disease and otherwise healthy. The study was conducted in Slovenia, an iodine-sufficient area. The Mann-Whitney test, the Kruskal-Wallis rank test, and Spearman analysis were used for statistical analysis. RESULTS: In the third trimester TSH was significantly higher and both free thyroid hormones were significantly lower than after delivery (P=0.003 and P<0.001), but the free thyroxine to free triiodothyronine ratios in the third trimester and 4months after delivery did not significantly differ. Urinary iodine concentration (UIC) was significantly higher during pregnancy than after delivery (P=0.044). We found no significant correlations between UIC and TSH or between UIC and both free thyroid hormones during pregnancy or after delivery. CONCLUSION: The decrease of both free thyroid hormones in the third trimester of pregnancy is most likely due to reasons that are not related to iodine supply. |
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Authors:
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Petja Fister; Simona Gaberscek; Katja Zaletel; Blaz Krhin; Sergej Hojker; Ksenija Gersak |
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Publication Detail:
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Type: Journal Article Date: 2010-10-20 |
Journal Detail:
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Title: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics Volume: 112 ISSN: 1879-3479 ISO Abbreviation: Int J Gynaecol Obstet Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0210174 Medline TA: Int J Gynaecol Obstet Country: Ireland |
Other Details:
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Languages: eng Pagination: 52-5 Citation Subset: IM |
Copyright Information:
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Copyright © 2010. Published by Elsevier Ireland Ltd. |
Affiliation:
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University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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