Perfluoroalkyl Substance Exposure Early In Pregnancy Was Negatively Associated With Late Pregnancy Cortisone Levels
- 1 August 2020
- journal article
- research article
- Published by The Endocrine Society in Journal of Clinical Endocrinology & Metabolism
- Vol. 105 (8), E2834-E2844
- https://doi.org/10.1210/clinem/dgaa292
Abstract
Introduction: During pregnancy, maternal cortisol levels are increased 3-fold by the third trimester. The enzyme 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD, isoforms 1 and 2) regulates the balance between cortisol and cortisone levels. Perfluoroalkyl substances (PFAS) have been reported to inhibit 11 beta-HSD1 and more potently 11 beta-HSD2, which could lead to reduced levels of cortisol and more extensively cortisone. Aim: The aim of this work is to investigate a possible effect of early pregnancy PFAS exposure on late pregnancy activity of 11 beta-HSD1 and 11 beta-HSD2 assessed by cortisol and cortisone levels in diurnal urine (dU) and blood samples. Methods: This study is part of the prospective cohort study, Odense Child Cohort (OCC). A total of 1628 pregnant women had serum (S) concentrations of 5 PFAS (perfluorooctanoic acid [PFOA], perfluorooctane sulfonic acid [PFOS], perfluorohexane sulfonic acid [PFHxS], perfluorononanoic acid [PFNA], and perfluorodecanoic acid (PFDA)) measured in the first trimester (median gestational week, GW 11). dU cortisol and cortisone (n = 344) and S-cortisol (n = 1048) were measured in the third trimester (median GW 27). Results: In multiple regression analyses, a 2-fold increase in S-PFOS was significantly associated with lower dU-cortisone (beta = -9.1%, P < .05) and higher dU-cortisol/dU-cortisone (dU-C/C) (beta = 9.3%, P < .05). In crude models, a doubling in PFOS, PFOA, PFHxS, and PFNA concentrations were associated with a significant increase in S-cortisol; however, these associations became insignificant after adjustment. Conclusion: Early pregnancy maternal S-PFAS were inversely associated with late pregnancy dU-cortisone, indicating reduced activity of 11 beta-HSD2.Funding Information
- Danish Foundation for Scientific Innovation and Technology (09-067180)
- Ronald McDonald Children Foundation
- Odense University Hospital
- Region of Southern Denmark
- Municipality of Odense
- Mental Health Service of the Region of Southern Denmark
- Danish Council for Strategic Research
- Program Commission on Health, Food and Welfare (2101-08-0058)
- Open Patient data Exploratory Network
- Novo Nordisk Foundation (NNF15OC00017734)
- Danish Council for Independent Research
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