Intra-ovarian regulation of follicular maturation is modulated by various factors. Among these, growth factors are important local actors. We examined the immunohistochemical localization of transforming growth factor alpha (TGF-alpha), epidermal growth factor (EGF) and epidermal growth factor receptor (EGF-R) in 18 human ovaries. The concentration of TGF-alpha and EGF in follicular fluid was m...

Purpose: Given the antiandrogenic effects of spearmint, in this study we evaluated the effects of its essential oil on polycystic ovarian syndrome in a rat model. Methods: Female rats were treated as follows: Control, normal rats which received 150 mg/kg spearmint oil or 300 mg/kg spearmint oil, or sesame oil; and PCOS-induced rats which received 150 mg/kg spearmint oil or 300 mg/kg spearmint o...

Background: In this study we aimed to investigate the distribution and expression level of pro anti-apoptotic proteins, Bax Bcl-2, in different developmental stages ovarian follicles any relations between these proteins follicle atresia. Materials Methods: For that purpose, bilateral 16 ovaries adult 8 mice were received tissues fixed 10% neutral buffered formalin. Routine tissue processing pro...

Angiogenesis and capillary degeneration are both evident during ovarian follicle growth. However, the characteristics and distribution of thecal capillary proliferative and degenerative structures have not been fully defined. Indeed, the role of thecal microvasculature changes in follicular atresia is still a matter of debate. The present study examined the distribution of thecal capillary chan...

Abstract Study question Can we obtain secondary follicles from cultured cryopreserved-thawed human cortical tissue? Summary answer We obtained a comparable percentage of after culture tissue to that reported fresh tissue. What is known already The complete in vitro maturation oocytes starting primary (present unilaminar follicles) until mature MII has been achieved previously by two different m...

BACKGROUND The c-kit/kit ligand (KITL) signalling axis is an essential component of ovarian folliculogenesis in mammals, but little is known about expression and localisation of its key components in the ovaries of reproductive age women. This study aimed to characterise mRNA expression of c-kit and KITL isoforms and the localisation of c-kit and KITL proteins in adult human premenopausal ovari...

In order to observe the morphological and endocrinological changes of the rat and mouse ovarian follicles by gamma-radiation, rats were whole-body irradiated with doses of 3.2 Gy and 8.0 Gy and mice with 2.9 Gy and 7.2 Gy. Sections of ovaria were examined by light microscopy. Concentrations of progesterone, testosterone, and estradiol in ovarian homogenate were determined by radioimmunoassay te...

The effect of Theranekron® on rat ovaries was evaluated in healthy and ischemia-reperfusion injury models. rats were divided into four groups: group 1: control, 2: (single dose 0.3 mg/kg intraperitoneally), 3: torsion + detorsion, 4: detorsion 0,3 mg/kg, intraperitoneally). homogenized by sonication before the analysis supernatant glucose-6-phosphate dehydrogenase activity, reduced nicotinamide...