title: Serum and follicular endocrine profile is different in modified natural cycles than in cycles stimulated with gonadotropin and gonadotropin-releasing hormone antagonist.
abstract: This study compared serum and follicular anti-müllerian hormone, LH, FSH, E(2), and P concentrations in modified natural cycles and controlled ovarian hyperstimulation cycles to analyze their effect on oocyte and embryo quality and implantation. Follicular anti-müllerian hormone, FSH, E(2), and P concentrations had no effect on embryo quality, whereas high serum and follicular LH concentrations in natural cycles modified only with hCG did not compromise oocyte and embryo quality but might have a negative effect on implantation.
authors.affiliation: Reproductive Unit, Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Ljubljana, Slovenia.
authors.forename: Nina
authors.initials: N
authors.lastname: Jancar
authors.forename: Irma
authors.initials: I
authors.lastname: Virant-Klun
authors.forename: Eda Vrtacnik
authors.initials: EV
authors.lastname: Bokal
mesh_terms: D000328:Adult; D054304:Anti-Mullerian Hormone / Q000097:blood; D006063:Chorionic Gonadotropin / Q000008:administration & dosage*; D010064:Embryo Implantation; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000097:blood; D015571:Follicular Fluid / Q000378:metabolism; D007987:Gonadotropin-Releasing Hormone / Q000037:antagonists & inhibitors*; D006728:Hormones / Q000097:blood*; D006801:Humans; D007247:Infertility, Female / Q000188:drug therapy*; D007986:Luteinizing Hormone / Q000097:blood; D054315:Oocyte Retrieval / Q000379:methods; D010060:Ovulation / Q000097:blood* / Q000187:drug effects; D010062:Ovulation Induction / Q000379:methods*; D011374:Progesterone / Q000097:blood; D011446:Prospective Studies
chemical_list: D006063:Chorionic Gonadotropin; D006728:Hormones; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D004958:Estradiol; D054304:Anti-Mullerian Hormone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone