Fluctuations in anti-Müllerian hormone levels throughout the menstrual cycle parallel fluctuations in the antral follicle count: a cohort study.
Acta Obstet Gynecol Scand
; 95(7): 820-8, 2016 07.
Article
in En
| MEDLINE
| ID: mdl-26919173
ABSTRACT
INTRODUCTION:
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. MATERIAL ANDMETHODS:
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.RESULTS:
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.CONCLUSIONS:
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.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Anti-Mullerian Hormone
/
Menstrual Cycle
Type of study:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
Limits:
Female
/
Humans
Language:
En
Journal:
Acta Obstet Gynecol Scand
Year:
2016
Document type:
Article
Affiliation country:
Netherlands