Aim In recent years, the importance of fertility preservation (FP) has increased. In vitro maturation (IVM), an important technique in FP, has started to be used in the clinic, but controversies persist regarding this technique. Here, a survey of IVM for FP is provided. Methods Based on a literature review, the applications of FP, methods of FP, IVM of oocytes that had been collected in vivo ...

The endocrine regulation of reproduction in a multiple spawning flatfish with an ovary of asynchronous development remains largely unknown. The objectives of this study were to monitor changes in mRNA expression patterns of three gonadotropin hormone (GTH) subunits (FSHβ, LHβ and CGα) and plasma GTH levels during ovarian maturation of half-smooth tongue sole Cynoglossus semilaevis. Cloning and ...

The goals and rhetoric of The Oncofertility Consortium [1] are aimed toward preserving cancer patients’ reproductive choices and facilitating their reproductive autonomy after cancer. While the end goals of oncofertility research are oriented toward safeguarding the possibility of biological reproduction for women and girls facing cancer treatments that may affect their reproductive capacity, c...

The LH surge causes major remodeling of the ovarian follicle in preparation for the ovulatory process. These changes include reprogramming of granulosa cells to differentiate into luteal cells, changes in cumulus cell secretory properties, and oocyte maturation. This review summarizes published data in support of the concept that LH stimulation of ovarian follicles involves activation of a loca...

BACKGROUND Premature ovarian failure (POF) is a heterogeneous syndrome, possibly due to mutations of genes involved in the normal development of the ovary and/or follicles. Based essentially on animal models, these mutations are associated with various ovarian phenotypes, from a complete absence of follicles to a partial follicular maturation. The aim of the present study was to determine wheth...

OBJECTIVE The aim of this study was to elucidate the etiology and treatment of primary ovarian insufficiency, which is of unknown cause in 95% of the cases. MATERIALS AND METHODS Thirty patients aged 18-40 years who presented to Dicle University Faculty of Medicine Clinic of Obstetrics and Gynecology between June 2012 and January 2014 and were diagnosed as having primary ovarian insufficiency...

Achieving ovulation in women with Kallmann's syndrome requires both exogenous FSH and LH to successfully stimulate follicular maturation and ovarian steroidogenesis. We present a case of a woman with Kallmann's syndrome, who had poor ovarian response to stimulation by exogenous gonadotrophins. When she was given testosterone by patch before initiation of gonadotrophins, her stimulation dramatic...

During each ovarian cycle, numerous follicles are in competition for their survival, only a few of them ovulate and participate to the reproduction as fertilizable oocyte. Therefore, the development of ovarian follicles is crucial for the survival of mammals species and a better understanding of this selection process is required to improve the treatment of infertility or to improve the reprodu...

Lysophosphatidic acid (LPA) known as a serum-derived growth factor, is involved in several cell physiological functions in the female reproductive system including: oocyte maturation, in vitro fertilization and embryo implantation by its transmembrane G protein-coupled receptors. The aim of the present study was to examine the effect of LPA on in vitro follicular development o...