Auflistung Nach Schlagwort "FSH"
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Alternate day and daily administration of GnRH antagonist may prevent premature luteinization to a similar extent during FSH treatment
(2005)BACKGROUND: This randomized controlled trial was designed to evaluate whether a GnRH antagonist given every other day could prevent premature luteinization in women undergoing IVF/ICSI treatment. METHODS: A total of 73 ... -
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 ... -
Changes in pituitary sensitivity to GnRH in estrogen-treated post-menopausal women: evidence that gonadotrophin surge attenuating factor plays a physiological role
(2004)BACKGROUND: The purpose of this study was to investigate changes in pituitary response to GnRH in post-menopausal women during substitution treatment with exogenous estrogen and progesterone. METHODS: Seven healthy ... -
Effect of ghrelin on gonadotrophin secretion in women during the menstrual cycle
(2009)It has been suggested that ghrelin may affect reproduction in animals by decreasing pituitary LH secretion. The role of ghrelin on LH secretion in women has not been investigated. Our aim was to assess the effect of ghrelin ... -
The effect of repeated follicular aspiration on the onset of puberty and growth rate of winter- or autumn-born lambs
(2009)The effects of follicular aspiration for oocyte retrieval on the attainment of puberty and growth rate were studied in winter-born (9 treated and 6 control) and autumn-born (5 treated and 5 control) ewe lambs. In the treated ... -
The endocrine effects of multiple folliculogenesis
(2011)Induction of multiple follicular development is a common practice in IVF programmes. Nevertheless, such an approach is not without implications. Apart from the high multiple pregnancy rate, marked changes in the secretion ... -
Endocrinological profile and follicular development in cyclic ewes subjected to repeated ovum pick-up
(2013)Blood concentrations of progesterone, FSH and oestradiol in Karagouniko ewes subjected to laparoscopic ovum pick-up (OPU) at specific stages of induced oestrous cycle, were measured. Twenty-four cyclic ewes were randomly ... -
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 ... -
Human ghrelin decreases pituitary response to GnRH in superovulated ewes
(2013)In addition to its metabolic role, ghrelin has been found to suppress luteinizing hormone secretion in many species acting mainly at the hypothalamic level. The objectives of the present study were to test the hypothesis ... -
Inhibin secretion in women with the polycystic ovary syndrome before and after treatment with progesterone
(2011)Objectives: It has been suggested that inhibin secretion is altered in women with the polycystic ovary syndrome (PCOS). However, the contribution of a preceding luteal phase has not been taken into account. The aim of the ... -
Inhibitory Effect of Submaximal Doses of Ghrelin on Gonadotropin Secretion in Women
(2014)The effect of ghrelin on gonadotropin secretion has been equivocal. Recent data have shown an inhibitory effect of repeated injections of ghrelin on nocturnal LH and FSH secretion in women. The aim of this study was to ... -
Leptin concentrations in the follicular phase of spontaneous cycles and cycles superovulated with follicle stimulating hormone
(1998)It has been reported that oestradiol may play a role in the production of leptin from adipocytes, To investigate this relationship further, nine normally ovulating women were studied during two menstrual cycles, i.e. an ... -
Oestradiol concentration as a predictor of ovarian response in FSH stimulated ewe-lambs
(2007)We investigated the prediction of ovarian response using oestradiol determination, in 37 gonadotrophin stimulated Karagouniko ewe-lambs. Ovarian stimulation was induced by serial FSH administrations, and laparoscopic ... -
Ovarian control of pituitary sensitivity of luteinizing hormone secretion to gonadotropin-releasing hormone in women with the polycystic ovary syndrome
(2009)This study investigated the ovarian control of LH responsiveness to GnRH in anovulatory women with the polycystic ovary syndrome (PCOS). It is suggested that the enhanced pituitary sensitivity of LH secretion to GnRH in ... -
Ovarian feedback, mechanism of action and possible clinical implications
(2006)The secretion of gonadotrophins from the pituitary in women is under ovarian control via negative and positive feedback mechanisms. Steroidal and non-steroidal substances mediate the ovarian effects on the hypothalamic-pituitary ... -
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 ... -
Smoking and AMH levels in women with normal reproductive history
(2010)To investigate the effect of age and smoking on the AMH levels in normal cycling healthy women with normal reproductive history. In 137 women, blood samples were taken on day 3 of a spontaneous cycle. Serum FSH, LH, E2, ...