Introduction Polycystic ovary syndrome (PCOS) is a condition that affects approximately 13%
of reproductive age women and is characterized by androgen excess, menstrual irregularity …

In several mammalian species, oocytes from small antral follicles after in vitro maturation
(IVM) are successfully used for procreation. Humans are the exception, mainly because of …

Background The suggested effects of the oocyte secreted GDF9 and BMP15 growth factors
on oocyte maturation are currently based on recombinant proteins, and little is known about …

STUDY QUESTION Which substances and signal transduction pathways are potentially
active downstream to the effect of FSH and LH in the regulation of human oocyte maturation …

Background The massive loss of follicles in the early stage of ovarian tissue transplantation
is considered a significant restriction to the efficacy of ovarian tissue cryopreservation (OTC) …

STUDY QUESTION Does 8 weeks of continuous low-dose hCG administration increase the
proportion of antral follicles that reach the preovulatory state during ovarian stimulation (OS) …

Aims Phytoestrogens can act as natural estrogens owing to their structural similarity to
human estrogens. Biochanin-A (BCA) is a well-studied phytoestrogen with a wide variety of …

Ovarian immature teratomas (OITs) are malignant tumors originating from the ovarian germ
cells that mainly occur during the first 30 y of a female's life. Early age of onset strongly …

Abstract Bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9)
are oocyte-specific paracrine factors which regulate ovarian cumulus cell (CC) functions …

To elucidate the reproductive role of oxytocin (OXT) in ovarian steroidogenesis and its
functional interaction with bone morphogenetic proteins (BMPs), the effects of OXT on …