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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 ...
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 ...
Evidence for non genomic action of 17 beta estradiol on transepithelial resistance of human fetal membranes
(2011)
Background: The role of hormones in the transport mechanisms of human fetal membranes in pregnancy is unclear. Estrogens are essential hormones in pregnancy and they play an important role in the ion transport via membranes. ...
The effect of estrogens on plasma ghrelin concentrations in women
(2010)
Background: Data regarding the possible effects of estrogen on ghrelin secretion in humans are limited and contradictory. Aim: To investigate the effect of estradiol (E2) on ghrelin levels in normal pre- and post-menopausal ...
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 ...
Absence of leptin expression and secretion by human luteinized granulosa cells
(2003)
Whether leptin is secreted by the human ovary is not known. The available data on leptin gene (ob gene) expression by human granulosa cells are conflicting. The aim of the present study was first to re-examine the expression ...