Listar por tema "SURGE"
Mostrando ítems 1-5 de 5
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Attenuation of the oestrogen positive feedback mechanism with the age in postmenopausal women
(2015)ObjectiveIt has been reported that the positive feedback mechanism of oestrogens and progesterone is preserved, although attenuated, in late postmenopausal years. Whether this is also true for the positive feedback effect ... -
Effect of mifepristone (RU486) on the pituitary response to gonadotrophin releasing hormone in women
(1996)Mifepristone interrupts folliculogenesis in women but the mechanism is not clear, Previous studies have investigated the effect of this compound on gonadotrophin secretion and have provided conflicting results. To study ... -
Failure of the GnRH antagonist ganirelix to block the positive feedback effect of exogenous estrogen in normal women
(2010)This study investigated whether the GnRH antagonist ganirelix is able to block the positive-feedback effect of E-2 in normal women. Ganirelix was unable to block the positive-feedback effect, suggesting that the clinical ... -
Oxytocin is not important for the control of gonadotrophin secretion in the late follicular phase of the cycle
(2007)Objective To study the role of oxytocin in basal and GnRH-induced gonadotrophin secretion in normal women. Design Normal women were studied in three cycles. When the diameter of the leading follicle was 15-16 mm, the women ... -
The progesterone positive feedback effect in women after ovariectomy
(2013)Various ovarian substances regulate the secretion of gonadotrophins during the menstrual cycle, but there are still several unclarified issues. The aim of this study was to investigate the positive feedback effect of ...