نتایج جستجو برای: gnrha long protocol

تعداد نتایج: 1006411  

Journal: :international journal of reproductive biomedicine 0
ensieh shahrokh tehrani nejad behnaz attar shakeri batool hoseini rashidi fatemeh ramezanzade mamak shariat

background: recently different studies suggested that discontinuation of gonadotrophin releasing hormone analogue (gnrha) at beginning of ovarian stimulation (improvement of ovarian response to gonadotrophins) may have some benefit to poor responder patients in invitro fertilization (ivf) cycles. objective:the efficacy of gnrha stop protocol in poor responder patients in ivf cycles was assessed...

Journal: :international journal of reproductive biomedicine 0
razieh dehghani firouzabadi farnaz mohammadian mehri mashayekhy robab davar maryam eftekhar

background: determination of oocyte fertilization and embryo quality are one of the most important purposes in art cycles. follicular fluid provides an important microenvironment for development of oocytes and some biochemical characteristics of the follicular fluid, such as pregnancy-associated plasma protein-a (papp-a), may play an important role in prediction of success rate of art. objectiv...

2012
Razieh Dehghani Firouzabadi Farnaz Mohammadian Mehri Mashayekhy Robab Davar Maryam Eftekhar

BACKGROUND Determination of oocyte fertilization and embryo quality are one of the most important purposes in ART cycles. Follicular fluid provides an important microenvironment for development of oocytes and some biochemical characteristics of the follicular fluid, such as pregnancy-associated plasma protein-A (PAPP-A), may play an important role in prediction of success rate of ART. OBJECTI...

2013
Xin Gong Yanyan Yu Qing Tong Ying Ren Zhe Jin

The purpose of this study was to explore the positive effects of Bu Shen Huo Xue Decoction (BSHXF) on assisted reproduction. The study aimed to evaluate whether BSHXD could improve endometrial morphology and increase the expression of LIF in a gonadotrophin-releasing hormone agonists (GnRHa) long protocol-induced rat model during metestrus, diestrus, proestrus, and oestrus. The BSHXD group pres...

Journal: :Human reproduction 2000
N G Beckers J S Laven M J Eijkemans B C Fauser

Gonadotrophin-releasing hormone agonists (GnRHa) are widely used in in-vitro fertilization (IVF) for the prevention of a premature rise in luteinizing hormone (LH) concentrations. However, the administration of GnRHa during the follicular phase may also impair subsequent luteal function due to retarded recovery of pituitary gonadotrophin secretion. Therefore, luteal supplementation is generally...

2014
Gen-Hong Mao Zonggang Feng Yan He Yu-Rong Huang

INTRODUCTION The aim was to compare the efficacy of long-acting and short-acting gonadotropin-releasing hormone (GnRH) agonists by long protocol on embryo quality, endometrial thickness and pregnancy rate in in vitro fertilization. MATERIAL AND METHODS In this retrospective study, long-term pituitary downregulation, achieved with long- and short-acting GnRH agonists (GnRHa), was performed for...

Journal: :Human reproduction 2006
Young Sik Choi Seung-Yup Ku Byung-Chul Jee Chang-Suk Suh Young Min Choi Jung Gu Kim Shin Yong Moon Seok Hyun Kim

BACKGROUND Insulin-like growth factors (IGF) and their binding proteins (IGFBP) play a major role in the autocrine and paracrine regulation of folliculogenesis. This is the first study that has compared follicular fluid (FF) IGF-I, IGF-II, IGFBP-3, IGFBP-4 and pregnancy-associated plasma protein (PAPP)-A concentrations, and their ratios, to investigate whether there was any difference in the in...

Journal: :The journal of obstetrics and gynaecology research 2005
Areepan Sophonsritsuk Wicharn Choktanasiri Sawaek Weerakiet Aram Rojanasakul

AIM To determine whether minimal stimulation with clomiphene and gonadotropin provides outcomes and direct costs comparable with those of a conventional GnRHa-gonadotropin stimulation protocol for infertile patients undergoing in vitro fertilization. METHODS A non-randomized clinical trial was conducted from 1 July 1996 to 31 March 2003 at the Infertility and Assisted Reproductive Unit, Ramat...

2011
Akihisa Takasaki Isao Tamura Fumie Kizuka Lifa Lee Ryo Maekawa Hiromi Asada Toshiaki Taketani Hiroshi Tamura Katsunori Shimamura Hitoshi Morioka Norihiro Sugino

BACKGROUND Blood flow in the corpus luteum (CL) is closely related to luteal function. It is unclear how luteal blood flow is regulated. Standardized ovarian-stimulation protocol with a gonadotropin-releasing hormone agonist (GnRHa long protocol) causes luteal phase defect because it drastically suppresses serum LH levels. Examining luteal blood flow in the patient undergoing GnRHa long protoco...

2013
Fei Gong Xihong Li Shunji Zhang Hainan Ma Sufen Cai Juan Li Ge Lin Guangxiu Lu

Objectives: There are various ovarian stimulation protocols for in vitro fertilization (IVF). Particularly for Poly-cystic Ovarian Syndrome (PCOS) patients an optimized protocol of pituitary FSH and LH down regulating gonadotropin-releasing hormone agonist (GnRHa) medication without complications is still a challenge. Methods: We retrospectively compared the primary endpoint of an ultra-long an...

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