Πλοήγηση ανά Συγγραφέα "Dafopoulos, K."
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Alternate day and daily administration of GnRH antagonist may prevent premature luteinization to a similar extent during FSH treatment
Messinis, I. E.; Loutradis, D.; Domali, E.; Kotsovassilis, C. P.; Papastergiopoulou, L.; Kallitsaris, A.; Drakakis, P.; Dafopoulos, K.; Milingos, S. (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 ... -
Attenuating activity of the ovary on LH response to GnRH during the follicular phase of the cycle
Dimitraki, M.; Messini, C. I.; Dafopoulos, K.; Gioka, T.; Koutlaki, N.; Garas, A.; Georgoulias, P.; Messinis, I. E. (2014)Objective Oestradiol sensitizes the pituitary to GnRH, while gonadotrophin surge attenuating factor (GnSAF) may oppose this action. Using the LH response to GnRH during treatment with FSH as an in vivo bioassay for GnSAF, ... -
Attenuation of the estrogen positive feedback mechanism with age in postmenopausal women
Dimitraki, M.; Koutlaki, N.; Gioka, T.; Messini, C. I.; Dafopoulos, K.; Messinis, I. E. (2011) -
Attenuation of the oestrogen positive feedback mechanism with the age in postmenopausal women
Dimitraki, M.; Koutlaki, N.; Gioka, T.; Messini, C. I.; Dafopoulos, K.; Anifandis, G.; Messinis, I. E. (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 ... -
Blockage of ghrelin-induced prolactin secretion in women by bromocriptine
Messini, C. I.; Dafopoulos, K.; Chalvatzas, N.; Georgoulias, P.; Anifandis, G.; Messinis, I. E. (2010)Objective: To investigate the effect of bromocriptine on ghrelin-induced PRL secretion in women. Design: Longitudinal study. Setting: University hospital. Patient(s): Ten healthy, normally cycling women. Intervention(s): ... -
Blood ghrelin, resistin, and adiponectin concentrations during the normal menstrual cycle
Dafopoulos, K.; Sourlas, D.; Kallitsaris, A.; Pournaras, S.; Messinis, I. E. (2009)Objective: To investigate changes of ghrelin, resistin, and adiponectin levels in the circulation during the normal menstrual cycle. Design: Longitudinal study. Setting: The study was conducted at a university hospital. ... -
The BMI of men and not sperm parameters impact on embryo quality and the IVF outcome
Anifandis, G.; Dafopoulos, K.; Messini, C. I.; Polyzos, N.; Messinis, I. E. (2013)It has been reported that increased body mass index (BMI) of men influences fecundity but it is not clear if it impacts on sperm parameters. Whether or not BMI of men influence sperm parameters and subsequently in vitro ... -
Changes in ghrelin and adipocytokines levels in ovariectomized premenopausal women treated with estrogen
Dafopoulos, K.; Chalvatzas, N.; Kristo, I.; Kallitsaris, A.; Mademtzis, I.; Messinis, I. E. (2006) -
Changes in pituitary sensitivity to GnRH in estrogen-treated post-menopausal women: evidence that gonadotrophin surge attenuating factor plays a physiological role
Dafopoulos, K.; Kotsovassilis, C. G.; Milingos, S.; Kallitsaris, A.; Galazios, G.; Zintzaras, E.; Sotiros, P.; Messinis, I. E. (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 ... -
Chorionic villi derived mesenchymal stem cells and expression of embryonic stem cells markers
Katsiani, E.; Garas, A.; Skentou, C.; Tsezou, A.; Dafopoulos, K.; Messinis, I. E. (2012) -
Circulating profile of adiponectin and resistin during the normal menstrual cycle
Dafopoulos, K.; Sourlas, D.; Pournaras, S.; Kallitsaris, A.; Christo, I.; Messinis, I. E. (2007) -
Comparative study of the intravenous chemoprophylaxix versus local Sulmycin (R) Implant E Sponge use in vaginal hysterectomy
Tsikouras, P.; Dafopoulos, A.; Zografou, C.; Karkanaki, A.; Tsigga, E.; Ammari, A.; Dafopoulos, K.; Galazios, G.; Liberis, V.; Teichmann, A. T. (2012)Objective: The aim of this comparative study was to ascertain the efficacy of the Sulmycin (R) Implant E, an antiseptic sponge, on the incidence of peri-and postoperative morbidity in patients subjected to vaginal hysterectomy. ... -
Cumulative pregnancy rate after ICSI with cryopreserved testicular tissue in non-obstructive azoospermia
Dafopoulos, K.; Griesinger, G.; Schultze-Mosgau, A.; Orief, Y.; Schöpper, B.; Nikolettos, N.; Diedrich, K.; Al-Hasani, S. (2005)The aim of the present study was to describe a simplified and inexpensive method of testicular tissue freezing to assess the cumulative clinical pregnancy rate (CPR) by this technique, and to provide useful information for ... -
Daily supplementation with ghrelin improves in vitro bovine blastocysts formation rate and alters gene expression related to embryo quality
Dovolou, E.; Periquesta, E.; Messinis, I. E.; Tsiligianni, T.; Dafopoulos, K.; Gutierrez-Adan, A.; Amiridis, G. S. (2014)Ghrelin is a gastric peptide having regulatory role in the reproductive system functionality, acting mainly at central level. Because the expression of ghrelin system (ghrelin and its receptor) has been detected in the ... -
Effect of an OT antagonist on the control of the midcycle LH surge in women
Vanakara, P.; Dafopoulos, K.; Papastergiopoulou, L.; Kallitsaris, A.; Papageorgiou, I.; Messinis, I. E. (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 ... -
Effect of anti-Mullerian hormone (AMH) and bone morphogenetic protein 15 (BMP-15) on steroidogenesis in primary-cultured human luteinized granulosa cells
Prapa, E.; Vasilaki, A.; Katsiani, E.; Gewrgoulias, P.; Messini, C.; Anifandis, G.; Dafopoulos, K.; Messinis, I. E. (2014) -
Effect of Anti-Mullerian hormone (AMH) and bone morphogenetic protein 15 (BMP-15) on steroidogenesis in primary-cultured human luteinizing granulosa cells through Smad5 signalling
Prapa, E.; Vasilaki, A.; Dafopoulos, K.; Katsiani, E.; Georgoulias, P.; Messini, C. I.; Anifandis, G.; Messinis, I. E. (2015)To determine if there is any effect of AMH and BMP-15 on estradiol and progesterone production from primary-cultured human luteinizing granulosa cells, to delineate what is the effect of FSH on their actions and which are ... -
The effect of estrogens on plasma ghrelin concentrations in women
Dafopoulos, K.; Chalvatzas, N.; Kosmas, G.; Kallitsaris, A.; Pournaras, S.; Messinis, I. E. (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 ... -
Effect of ghrelin and metoclopramide on prolactin secretion in normal women
Messini, C. I.; Dafopoulos, K.; Chalvatzas, N.; Georgoulias, P.; Anifandis, G.; Messinis, I. E. (2010) -
Effect of ghrelin and metoclopramide on prolactin secretion in normal women
Messini, C. I.; Dafopoulos, K.; Chalvatzas, N.; Georgoulias, P.; Anifandis, G.; Messinis, I. E. (2011)Background: Administration of ghrelin to women stimulates the secretion of PRL but the mechanism is not known. Aim: The aim of the study was to investigate the effect of the dopamine receptor blocker, metoclopramide, on ...