Hum. Reprod. Advance Access originally published online on March 2, 2007
Human Reproduction 2007 22(6):1547-1554; doi:10.1093/humrep/dem036
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Anti-Müllerian hormone and anti-Müllerian hormone type II receptor polymorphisms are associated with follicular phase estradiol levels in normo-ovulatory women
1 Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands 2 Department of Epidemiology and Biostatistics, Erasmus MC, Rotterdam, The Netherlands 3 Department of Clinical Chemistry, Erasmus MC, Rotterdam, The Netherlands 4 Division of Reproductive Medicine, Department of Obstetrics and Gynaecology, Erasmus MC, Rotterdam, The Netherlands 5 Department of Obstetrics and Gynaecology, Münster University Hospital, Münster, Germany 6 Institute for Reproductive Medicine, Münster University Hospital, Münster, Germany
7 To whom correspondence should be addressed at: Deptartment of Internal Medicine, Room Ee532, Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands. Tel.: +31 10 4087346; Fax: +31 10 4635430; E-mail: m.kevenaar{at}erasmusmc.nl
BACKGROUND: In mice, anti-Müllerian hormone (AMH) inhibits primordial follicle recruitment and decreases FSH sensitivity. Little is known about the role of AMH in human ovarian physiology. We hypothesize that in women AMH has a similar role in ovarian function as in mice and investigated this using a genetic approach.
METHODS: The association of the AMH Ile49Ser and the AMH type II receptor (AMHR2) –482 A > G polymorphisms with menstrual cycle characteristics was studied in a Dutch (n = 32) and a German (n = 21) cohort of normo-ovulatory women.
RESULTS: Carriers of the AMH Ser49 allele had higher serum estradiol (E2) levels on menstrual cycle day 3 when compared with non-carriers in the Dutch cohort (P = 0.012) and in the combined Dutch and German cohort (P = 0.03). Carriers of the AMHR2 –482G allele also had higher follicular phase E2 levels when compared with non-carriers in the Dutch cohort (P = 0.028), the German cohort (P = 0.048) and hence also the combined cohort (P = 0.012). Women carrying both AMH Ser49 and AMHR2 –482G alleles had highest E2 levels (P = 0.001). For both polymorphisms no association with serum AMH or FSH levels was observed.
CONCLUSIONS: Polymorphisms in the AMH and AMHR2 genes are associated with follicular phase E2 levels, suggesting a role for AMH in the regulation of FSH sensitivity in the human ovary.
Key words: anti-Müllerian hormone/estrogen/menstrual cycle/ovarian function/polymorphism
Submitted on November 13, 2006; resubmitted on December 22, 2006; accepted on January 22, 2007.
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