Syferkuil Dam is situated 8 km NW of the University of the North and comprises a series of eight interconnected rectangular dams, having cement sides and mud bottoms. Throughout the experimental period, male and female adult specimens of the mouthbrooding tilapia, Oreochromis mossambicus were collected for further analysis. Aspects of the reproductive physiology of O. mossambicus that were inve...

Our understanding of the roles played by sex hormones in ovarian carcinogenesis has been limited by a lack of data concerning the mode of sex hormone action in human ovarian surface epithelial (HOSE) cells, the tissue of origin of >90% of ovarian cancers. We have compared the relative abundance of estrogen receptor (ER)a, ERb, progesterone receptor (PR), and androgen receptor (AR) mRNA in four ...

BACKGROUND Premature ovarian failure (POF) is a common condition; its incidence is estimated to be as great as 1 in 100 by the age of 40 years. Physiologic replacement of ovarian steroid hormones seems rational until the age of normal menopause. Temporary return of ovarian function and pregnancy may occur rarely in women with POF. We report a case of POF who conceived during hormone replacement...

Ovarian cancer is a commonly fatal disease for which prevention strategies have been limited, in part because of a lack of understanding of the underlying biology. This paper reviews the epidemiologic literature in the English language on risk factors and protective factors for ovarian cancer and proposes a novel hypothesis that a common mechanism underlying this disease is inflammation. Previo...

Introduction In the swine farms, the reproductive disorders composed of repeat breeding, vaginal discharge, anestrus, not getting pregnant and abortion are the main problem resulting in culling lots of gilts (1). It is known that reproductive function of gilts is complicated to clinically explore under field surroundings, thus the reproductive organs from the slaughterhouses are the possible so...

BACKGROUNDS In vitro fertilization involves high dosage gonadotropin stimulation, which apparently has some negative impact on follicular endocrine function. As chorionic gonadotropin stimulation has been shown to increase the blood-follicular permeability in animal models, this raises the question if such an effect also applies to gonadotropins in humans, possibly affecting the endocrine folli...

Gynaecological endocrinology is concerned with the secretion of hormones by the ovary, the control of ovarian function by the pituitary and the manifestation of ovarian activity by the behaviour of the endometrium and the character and regularity of menstrual bleeding. It is necessary, therefore, to understand the physiology of ovarian hormone secretion, its control and manifestations, the natu...

Keywords: Polycystic ovarian syndrome PCOS Anti-mullerian hormone AMH PCOD Original Article Polycystic ovarian syndrome is a complex heterogeneous disorder of unknown etiology and shows mild to severe degree of signs and symptoms affecting the reproductive, endocrine and metabolic functions. Anti-mullerian hormone, a dimeric glycoprotein belonging to the transforming growth factor–beta superfam...