The knowledge of the control mechanisms of fertility has implications in social (e.g., the option of conception or anti-conception in humans, populational control, and therapeutic development), economic (e.g., improvement of the fertility of domestic or captive wild species to provide food and clothing) and environmental (e.g., maintenance or reestablishment of ecosystems equilibrium, environme...

OBJECTIVE [corrected] To improve the biologic understanding of the Polycystic Ovarian Syndrome (PCOS) condition by examining the circadian variation and relationship between Anti Müllerian Hormone (AMH), gonadotropins and ovarian steroids in PCOS patients compared to normally ovulating and menstruating women. By comparing the pattern of co-variation between AMH and Luteinizing Hormone, two comp...

In horses, successful in vitro fertilization procedures are limited by our inability to consistently mature equine oocytes by in vitro methods. Growth hormone (GH) is an important regulator of female reproduction in mammals, playing an important role in ovarian function, follicular growth and steroidogenesis. The objectives of this research were to investigate: the effects of equine growth horm...

The presence of estrogen receptor beta and aromatase in the germ cell has highlighted the physiological role of the traditionally female hormone, estrogen, in spermatogenesis. Estrogen receptor alpha knockouts and aromatase knockouts have further accentuated the role of estrogen in germ cell maturation. To delineate the direct action of estrogen in the seminiferous epithelium, we studied the ef...

A case of a patient with premature ovarian failure (POF) is discussed. Ovulation failed to occur for 5 years by gonadotropin-releasing hormone agonist (GnRHa) and human menopausal gonadotropin (hMG) treatment following estrogen-progesterone replacement therapy. After laparoscopic ovarian biopsy, ovulation was successfully induced by hMG, although gonadotropins were not suppressed enough, and th...

This Technical Bulletin reviews the indications for gonadotropin treatment in anovulatory women; outlines the recommended pretreatment evaluation, treatment regimens, and monitoring; describes the alternatives and adjuncts to treatment with gonadotropins; and summarizes the complications of gonadotropin treatment. (Fertil Steril 2008;90:S7–12. 2008 by American Society for Reproductive Medicine.)

Background: Our aim was to evaluate the recovery rate of ovarian function and the activity of hypothalamus-hypophiseal- gonadal axis following transplantation of vitrified ovaries. Materials and Methods: Five weeks-old female Wistar Rats were distributed randomly in two experimental groups; Fresh Transplanted, Vitrified-Transplanted and 8 weeks-old female Wistar rats were considered as control ...

The patient was a 11%-month-old white female infant, whose mother was gravida III, para III. The pregnancy was entirely normal, with no virus infections or irradiation during the first trimester. The patient had edema of the dorsa of the hands and feet at birth. When she was first seen at 23 months the edema of the hands had subsided and the skin was very lax. The dorsa of the feet still exhibi...