Πλοήγηση ανά Θέμα "PITUITARY-RESPONSE"
Αποτελέσματα 1-9 από 9
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Changes in gonadotrophin response to gonadotrophin releasing hormone in normal women following bilateral ovariectomy
(1997)OBJECTIVE Pituitary responsiveness to GnRH varies throughout the normal menstrual cycle, We have investigated whether there are differences in the ovarian mechanisms which regulate gonadotrophin secretion between the ... -
Evidence of differential control of FSH and LH responses to GnRH by ovarian steroids in the luteal phase of the cycle
(2002)BACKGROUND: It is known that during the follicular phase of the cycle, estradiol sensitizes the pituitary to GnRH. The aim of this study was to determine the role of ovarian steroids in the control of GnRH-induced gonadotrophin ... -
Evidence that termination of the estradiol-induced luteinizing hormone surge in women is regulated by ovarian factors
(2006)Background: The endogenous LH surge is the result of the estrogen-positive feedback effect. However, the factors that are responsible for the termination of LH surge are not known. Objective: The objective of the study was ... -
From menarche to regular menstruation - Endocrinological background
(2006)Marked changes in hormone secretion occur from childhood to adulthood. Prior to puberty gonadotropin-releasing hormone (GnRH) secretion is markedly suppressed. At the onset of puberty, the hypothalamic gonadostat is ... -
FSH modulatory effect on human granulosa cells: a gene-protein candidate for gonadotrophin surge-attenuating factor
(2011)Previous evidence indicates a homology of gonadotrophin surge-attenuating factor (GnSAF) to the carboxyl terminal of human serum albumin (HSA) and the ability of human granulosa cells to produce mRNA transcripts corresponding ... -
Modulatory effect of the ovary on LH secretion
(2003)Ovarian steroids are important regulators of gonadotropin secretion during the normal menstrual cycle. Estradiol is the predominant factor in the follicular phase, while progesterone plays an important role in the luteal ... -
Novel aspects of the endocrinology of the menstrual cycle
(2014)Ovarian control of gonadotrophin secretion is normally achieved via the feedback mechanisms mediated by oestradiol and progesterone. Evidence has been provided that nonsteroidal substances, such as inhibin A and B, participate ... -
Ovarian regulators of gonadotropin secretion
(2000)Great progress in the ovarian mechanisms that control gonadotrophin secretion in women has recently been achieved, Estradiol (E-2) is the main component of the ovarian negative effect on basal gonadotropin secretion during ... -
The role of gonadotropins in the follicular phase
(2010)Folliculogenesis in humans is a lengthy process that involves several regulators. Pituitary gonadotropins play crucial roles in the late stages, particularly in the last 15 days of follicle maturation. During the intercycle ...