The aim of the present study was to examine the role of nutritional status, the metabolic hormone ghrelin and their interrelationships in the control of chicken hormones involved in the regulation of reproduction. For this purpose, we identified the effect of food deprivation, administration of ghrelin 1-18 and their combination on plasma levels of testosterone (T), estradiol (E), arginine-vaso...

The structure of secretory cells and granules has been described in the mouse Fallopian tube during sexual maturation and oestrous cycle. The oviducts of newborn mice were lined with a simple columnar epithelium in which only tall indifferent cells of uniform appearance were present. In some of these cells, marks of ciliogenesis were observed. The occurrence of secretory cells showing proteosyn...

The hormonal status of women with a diagnosis STUMP, removal one ovary and without surgery were prospectively studied. study the background revealed ovarian insufficiency syndrome in after surgical treatment. Our studies carried out period from 1 month to 3 months, 4 6 months 7 12 operation. We investigated changes level main informative hormones FSH, E2, LH, AMH, since other hormones, such as ...

In previous studies, patients with severe peri-ovarian adhesions have been found to show low pregnancy rates and a poor response to gonadotrophin stimulation during in-vitro fertilization (IVF) treatment. The purpose of this retrospective pharmacokinetic study was to assess the diffusion of exogenous human chorionic gonadotrophin (HCG) in patients with peri-ovarian adhesions by examining the co...

Globally, ovarian cancer is the 6th most common malignancy in developed countries, responsible for 100,300 new cases and 64,500 deaths annually (Jemal et al., 2011). Approximately 90% of ovarian cancers arise within the ovarian surface epithelium (OSE) or the fallopian tube surface epithelium; the remainder of ovarian malignancies develops from other ovarian tissues (sex cord-stromal, germ cell...

In order to determine the most effective hormones on the in vitro oocyte maturation (germinal vesicle breakdown GVBD) in a hybrid sturgeon bester, ovarian follicles were incubated at the migratory nucleus stage in the presence of several steroids, gonadotropin preparations and forskolin. Occurrence of GVBD and 17,20β-dihydroxy-4-pregnen-3 -one (DHP) production were followed during an experiment...

In lizards as in many other kinds of animals, strong maternal effects on the phenotypic traits of hatchlings are frequently reported. One plausible non-genetic mechanism that might produce such differences among clutches involves maternal allocation of steroid hormones. Lizard eggs often display considerable inter-clutch variation in the quantities of maternally allocated steroids, and exogenou...

In dorsal root ganglia (DRG) cell cultures, levels of calcitonin gene-related peptide (CGRP) are increased in the presence of ovarian hormones and nerve growth factor (NGF). In addition, injection of ovariectomized rats with ovarian hormones led to an increase in levels of two NGF receptors, TrkA and p75(NTR), in DRG. Thus, we hypothesized that increased levels of ovarian hormones during pregna...

BACKGROUND Ovarian carcinomas, usually associated with sex hormones dysregulation, are the leading cause of gynecological neoplastic death. In normal ovaries, hormones play a central role in regulating cell proliferation, differentiation, and apoptosis. On the other hand, hormonal alterations also play a variety of roles in cancer. Stimulation by sex hormones potentially affects gene expression...

Received January 16,1978 SUMMARY: Rat ovarian cells were exposed to cholera enterotoxin, and the effect on progesterone synthesis as well as on protein kinase stimulation was examined. Cholera enterotoxin stimulated ovarian steroidogenesis in a dose dependent manner similar to that of hCG. The stimulation of protein kinase by cholera toxin was followed by a lag period, whereas hCG effect was im...