The relationship between maternal and umbilical cord androgen levels and polycystic ovary syndrome in adolescence: a prospective cohort study.
BACKGROUND
The prenatal antecedents of polycystic ovary syndrome (PCOS) are not known, but prenatal androgen exposure is thought to contribute. This has not previously been investigated in large prospective studies of normal human pregnancy.


OBJECTIVE
The aim of the study was to establish the prospective relationship between early life androgen exposure and PCOS in adolescence.


METHODS
A prospective cohort study was conducted in the general community.


METHODS
A total of 2900 pregnant women were recruited at 18 wk gestation. Prenatal androgen exposure was measured from maternal blood samples (at 18 and 34-36 wk) and umbilical cord blood. Timed (d 2-5 menstrual cycle) blood samples were collected, clinical hyperandrogenism was assessed, and transabdominal ultrasound examination of ovarian morphology was performed in 244 unselected girls from the Raine cohort aged 14-17 yr.


METHODS
We examined the relationship between early life androgen exposure and PCOS in adolescence.


RESULTS
We did not observe a statistically significant relationship between early life androgen exposure and PCOS in adolescence.


CONCLUSIONS
This is the first prospective study to evaluate the relationship between prenatal androgen exposure and PCOS in adolescence in normal pregnancy. Our findings do not support the hypothesis that maternal androgens, within the normal range for pregnancy, directly program PCOS in the offspring.
Hickey
M
M
School of Women's and Infants' Health, University of Western Australia, Crawley WA 6009 Perth, Australia. mhickey@meddent.uwa.edu.au
Sloboda
D M
DM
Atkinson
H C
HC
Doherty
D A
DA
Franks
S
S
Norman
R J
RJ
Newnham
J P
JP
Hart
R
R
D000293:Adolescent; D000328:Adult; D000728:Androgens / Q000097:blood*; D000735:Androstenedione / Q000097:blood; D015415:Biomarkers / Q000097:blood; D015331:Cohort Studies; D019314:Dehydroepiandrosterone Sulfate / Q000097:blood; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005865:Gestational Age; D006801:Humans; D009035:Mothers; D015999:Multivariate Analysis; D011085:Polycystic Ovary Syndrome / Q000097:blood* / Q000175:diagnosis*; D011247:Pregnancy; D011264:Pregnancy Trimesters / Q000097:blood; D011297:Prenatal Exposure Delayed Effects / Q000097:blood*; D011446:Prospective Studies; D013739:Testosterone / Q000097:blood
D000728:Androgens; D015415:Biomarkers; D013739:Testosterone; D000735:Androstenedione; D019314:Dehydroepiandrosterone Sulfate