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- Title
Fluctuations in anti-Müllerian hormone levels throughout the menstrual cycle parallel fluctuations in the antral follicle count: a cohort study.
- Authors
Depmann, Martine; Disseldorp, Jeroen; Broer, Simone L.; Eijkemans, Marinus J.C.; Laven, Joop S.E.; Visser, Jenny A.; Rijke, Yolanda B.; Mol, Ben W.; Broekmans, Frank J.M.
- Abstract
<bold>Introduction: </bold>In this prospective cohort study we aimed to investigate the hypothesis that fluctuations in anti-Müllerian hormone levels stem from fluctuations in the number of antral follicles.<bold>Material and Methods: </bold>Repeated measurements of anti-Müllerian hormone and antral follicles (follicles 2-8 mm) were performed in 44 women with a regular cycle, during one menstrual cycle. If our hypothesis that anti-Müllerian hormone fluctuations stem from fluctuations in the antral follicles is correct, a fluctuation in the antral follicles would result in an equal and parallel shift in anti-Müllerian hormone. Hence, the difference between antral follicles and anti-Müllerian hormone would remain constant over time. A mixed model analysis, assessing the stability between anti-Müllerian hormone and antral follicles, was performed using the difference between log antral follicles and log anti-Müllerian hormone. Cohen's D was calculated for the largest of fixed effects in order to assess stability in relative distance between antral follicles and anti-Müllerian hormone. To assess if fluctuation in anti-Müllerian hormone or antral follicles originated from between-subject fluctuation, or from within subject fluctuation, the intra-class correlation coefficient was calculated.<bold>Results: </bold>Mixed model analysis and Cohen's D (0.12) confirmed the stability of the difference between log antral follicles and log anti-Müllerian hormone and so confirmed our hypothesis. The good intra-class correlation coefficient (0.73) indicated a small contribution of within-subject variation to anti-Müllerian hormone fluctuations.<bold>Conclusions: </bold>Fluctuations in anti-Müllerian hormone levels parallel fluctuations in antral follicles, suggesting that anti-Müllerian hormone levels are closely linked to variation in the antral follicles. This knowledge adds to the basic understanding of the origin of anti-Müllerian hormone and could aid in interpretation of individual anti-Müllerian hormone levels.
- Subjects
HORMONES; MENSTRUAL cycle; OVARIAN atresia; ANTI-Mullerian hormone; WOMEN; FOLLICLE-stimulating hormone; SEX hormones; LONGITUDINAL method; OVARIES
- Publication
Acta Obstetricia et Gynecologica Scandinavica, 2016, Vol 95, Issue 7, p820
- ISSN
0001-6349
- Publication type
journal article
- DOI
10.1111/aogs.12886