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Mistry, Hiten D., Eisele, Nicole, Escher, Genevieve, Dick, Bernhard, Surbeck, Daniel, Delles, Christian, Currie, Gemma, Schlembach, Dietmar, Mohaupt, Markus and Gennari-Moser, Carine (2015) Gestation-specific reference intervals for comprehensive spot urinary steroid hormone metabolite analysis in normal singleton pregnancy and 6 weeks postpartum. Reproductive Biology and Endocrinology, 13 . 101/1-101/13. ISSN 1477-7827

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Abstract

Background: Normal pregnancy depends on pronounced adaptations in steroid hormone concentrations. Although in recent years, the understanding of these hormones in pregnancy has improved, the interpretation is hampered by insufficient reference values. Our aim was to establish gestation-specific reference intervals for spot urinary steroid hormone levels in normal singleton pregnancies and 6 weeks postpartum.

Methods: Cross-sectional multicentre observational study. Women recruited between 2008 and 2013 at 3 University Hospitals in Switzerland (Bern), Scotland (Glasgow) and Austria (Graz). Spot urine was collected from healthy women undergoing a normal pregnancy (age, 16-45 years; mean, 31 years) attending routine antenatal clinics at gestation weeks 11, 20, and 28 and approximately 6 weeks postpartum. Urine steroid hormone levels were analysed using gas-chromatography mass spectrometry. Creatinine was also measured by routine analysis and used for normalisation.

Results: From the results, a reference interval was calculated for each hormone metabolite at each trimester and 6 weeks postpartum. Changes in these concentrations between trimesters and postpartum were also observed for several steroid hormones and followed changes proposed for index steroid hormones.

Conclusions: Normal gestation-specific reference values for spot urinary steroid hormones throughout pregnancy and early postpartum are now available to facilitate clinical management and research approaches to steroid hormone metabolism in pregnancy and the early postpartum period.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/762096
Keywords:	Pregnancy reference values; Urine; Steroid metabolites
Schools/Departments:	University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Child Health, Obstetrics and Gynaecology
Depositing User:	Mistry, Hiten
Date Deposited:	21 Jul 2017 10:22
Last Modified:	04 May 2020 17:17
URI:	https://eprints.nottingham.ac.uk/id/eprint/44330

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