منابع مشابه
Gonadotropins in the Regulation of Cadherin-mediated Survival of Human Ovarian Surface Eipthelial Cells
INTRODUCTION. Epithelial ovarian cancer is the most common cause of cancer deaths among women in North America. Our understanding of the development of ovarian cancer depends on knowledge about the biology of its precursor, the human ovarian surface epithelium (OSE), which a single layer of flat-to-cuboidal mesothelium covering the surface of the ovary (reviewed in 1). However, the signaling pa...
متن کاملTiming of the ovarian circadian clock is regulated by gonadotropins.
The timing of ovulation is critically important to the success of reproduction. Current thinking attributes the timing of ovulation to LH secretion by the pituitary, itself timed by signals from the hypothalamus. The discovery of an internal circadian timer in the ovary raises the possibility that ovulation is in fact timed by an interaction between clocks in the hypothalamus/pituitary and thos...
متن کاملPituitary Gonadotropins, Prolactin and Growth Hormone Differentially Regulate AQP1 Expression in the Porcine Ovarian Follicular Cells
The present in vitro study analyzed whether the hormones that affect the ovarian follicular steroidogenesis process also participate in the regulation of AQP1 mRNA and protein expression. Granulosa (Gc) and theca cells (Tc) of medium and large porcine ovarian follicles were exposed to follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL) and growth hormone (GH) for 24 h ...
متن کاملHuman steroidogenesis: implications for controlled ovarian stimulation with exogenous gonadotropins
In the menstrual cycle, the mid-cycle surge of gonadotropins (both luteinising hormone [LH] and follicle-stimulating hormone [FSH]) signals the initiation of the periovulatory interval, during which the follicle augments progesterone production and begins to luteinise, ultimately leading to the rupture of the follicle wall and the release of an oocyte. The administration of gonadotropins in con...
متن کاملPrimary culture of ovarian follicular cells of Sterlet, Acipenser ruthenus to develop an in vitro system
The aim of the present study was to develop an in vitro system for functional investigation of ovarian follicular cells in Sterlet, Acipenser ruthenus. Oocytes for the primary culture were obtained from the ovaries of a 6 years old Sterlet 729 g in weight and 47 cm in total length. The oocytes were in advanced vitellogenesis stage (PI >10). A part of the ovary (containing about 300 follicles) w...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1974
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod10.2.179