Third trimester cortisol status is associated with offspring sex and polycystic ovary syndrome status: Odense Child Cohort

Maternal serum cortisol levels were higher in women pregnant with girls compared with boys. Women with polycystic ovary syndrome had higher third trimester 24-hour urinary cortisone levels than women without polycystic ovary syndrome.

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Volume 112, Issue 4, Pages 764–772

Authors:

Marianne Skovsager Andersen, Dm.Sci., Richard Christian Jensen, M.D., Anne Vibeke Schmedes, Ph.D., Ivan Brandslund, Dm.Sci., Henriette Boye Kyhl, M.Sc., Tina Kold Jensen, Ph.D., Dorte Glintborg, Dm.Sci.

Abstract:

Objective

To determine predictors of maternal serum (S) and urinary (U) cortisol and cortisone levels during the third trimester and to examine associations between maternal cortisol status, offspring sex, and maternal polycystic ovary syndrome (PCOS) status.

Design

Prospective observational study.

Setting

The study is part of the prospective Odense Child Cohort.

Patient(s)

The study cohort included 1,489 women (with PCOS, n = 145; without PCOS, n = 1,344).

Intervention(s)

Fasting blood samples, 24-hour urinary samples.

Main Outcome Measure(s)

Fasting morning S-cortisol and 24-hour U-cortisol/U-cortisone (24-hour U-C/C) were collected at gestational week 28 and measured by liquid chromatography–tandem mass spectrometry.

Result(s)

Maternal S-cortisol levels were significantly higher in women pregnant with girls (n = 702) vs. boys (n = 787): mean (mean − SD; mean + SD) 833 (643; 1,079) vs. 799 (588; 1,083) nmol/L. In multiple regression analyses, maternal S-cortisol was positively associated with female offspring and inversely associated with maternal age and parity. When women were divided according to PCOS status, 24-hour U-cortisone was higher: 467 (334; 652) vs. 415 (286; 604) nmol/24 hours; and 24-hour U-C/C was lower in women with PCOS compared with women without PCOS.

Conclusion(s)

Maternal third trimester S-cortisol levels were positively associated with female offspring. Cortisol metabolism was higher in women with PCOS vs. women without PCOS.


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Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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