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Αποτελέσματα 1-10 από 13
Effect of an OT antagonist on the control of the midcycle LH surge in women
(2009)
P>Objective Data in women regarding the role of OT in LH secretion during the LH surge are conflicting. As in previous studies blood samples for LH measurements were taken infrequently, we re-examined this matter in women ...
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 ...
Oestradiol stimulates prolactin secretion in women through oestrogen receptors
(2006)
Objective To examine the effects of clomiphene and raloxifene on basal and GnRH-induced prolactin (PRL) secretion in postmenopausal women. Design Postmenopausal women participated in two experimental procedures a month ...
Modulating effect of leptin on basal and follicle stimulating hormone stimulated steroidogenesis in cultured human lutein granulosa cells
(2009)
Background: In vitro data have shown conflicting results in terms of the effect of leptin on granulosa cells steroidogenesis. Aim: The aim of the present study was to investigate the effect of low and high doses of leptin ...
In vitro responsiveness of human post-menopausal myometrium to endothelin-1 and ovarian steroids
(2005)
It has been shown in vitro that endothelin 1 (ET1) differentially affects the human myometrial contractility according to the hormonal profile of women. Our purpose was to test the hypothesis that ovarian steroids influence ...
Effects of clomiphene and raloxifene on gonadotrophin secretion in postmenopausal women: evidence of nongenomic action
(2004)
OBJECTIVE To evaluate the effect of raloxifene (R) and clomiphene (Cl) on FSH and LH secretion in postmenopausal women. DESIGN Postmenopausal volunteer women participated in two experimental (Exp) procedures. In Group 1, ...
Endothelin-3 and PRL levels in the maternal and fetal circulation at delivery
(2007)
Objective: The aim of the present cross-sectional study was to test the hypothesis that endothelin-3 (ET-3) is involved in PRL secretion via systemic hormonal interaction during labor. Materials and methods: Fifty healthy ...
Growth hormone and prolactin response to ghrelin during the normal menstrual cycle
(2009)
Objective It has been suggested that exogenous oestradiol augments ghrelin-induced growth hormone (GH) secretion in postmenopausal women. Whether endogenous oestrogens exert a similar effect during the normal menstrual ...
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 ...