نتایج جستجو برای: rfsh

تعداد نتایج: 244  

2015
Mónica Boj François Chauvigné Cinta Zapater Joan Cerdà Shree Ram Singh

The mediation of fluid homeostasis by multiple classes of aquaporins has been suggested to be essential during spermatogenesis and spermiation. In the marine teleost gilthead seabream (Sparus aurata), seven distinct aquaporins, Aqp0a, -1aa, -1ab, -7, -8b, -9b and -10b, are differentially expressed in the somatic and germ cell lineages of the spermiating testis, but the endocrine regulation of t...

2011
Ayse Seyhan Baris Ata

Corifollitropin alfa is a synthetic recombinant follicle-stimulating hormone (rFSH) molecule containing a hybrid beta subunit, which provides a plasma half-life of ∼65 hours while maintaining its pharmocodynamic activity. A single injection of corifollitropin alfa can replace daily FSH injections for the first week of ovarian stimulation for in vitro fertilization. Stimulation can be continued ...

Journal: :Reproductive Biology and Endocrinology : RB&E 2009
Peter Drakakis Dimitris Loutradis Apostolos Beloukas Vana Sypsa Vasiliki Anastasiadou George Kalofolias Helen Arabatzi Erasmia Kiapekou Konstantinos Stefanidis Dimitris Paraskevis Antonis Makrigiannakis Angelos Hatzakis Aris Antsaklis

A simple, safe and cost-effective treatment protocol in ovarian stimulation is of great importance in IVF practice, especially in the case of previous unsuccessful attempts. hCG has been used as a substitute of LH because of the degree of homology between the two hormones. The main aim of this prospective randomized study was to determine, for the first time, whether low dose hCG added to rFSH ...

Journal: :Human reproduction 2006
Thomas Tang Julie Glanville Nic Orsi Julian H Barth Adam H Balen

BACKGROUND Metformin appears to improve reproductive function in some women with polycystic ovary syndrome (PCOS). We wished to explore the effect of metformin in women with PCOS undergoing IVF. METHODS A randomized, placebo-controlled, double-blind study was carried out between 2001 and 2004. Patients with PCOS undergoing IVF/ICSI treatment using a long GnRH agonist protocol were randomized ...

2013
John L Frattarelli Torbjörn Hillensjö Frank J Broekmans Han Witjes Jolanda Elbers Keith Gordon Bernadette Mannaerts

BACKGROUND We sought to evaluate the incidence and clinical impact of luteinizing hormone (LH) rises prior to and during gonadotropin-releasing hormone (GnRH) antagonist treatment started on day 5 or 6 of ovarian stimulation with recombinant follicle-stimulating hormone (rFSH). METHODS Pooled data from three trials with the GnRH antagonist ganirelix started on day 5 (n = 961) and from five tr...

2015
Hyo Young Park Min Young Lee Hyo Young Jeong Yong Sook Rho Sang Jin Song Bum-Chae Choi

OBJECTIVE To evaluate the effect of a gonadotropin-releasing hormone (GnRH) antagonist protocol using corifollitropin alfa in women undergoing assisted reproduction. METHODS Six hundred and eighty-six in vitro fertilization-embryo transfer (IVF)/intracytoplasmic sperm injection (ICSI) cycles were analyzed. In 113 cycles, folliculogenesis was induced with corifollitropin alfa and recombinant f...

2015
Mina Zaree Vahideh Shahnazi Shabnam Fayezi Maryam Darabi Mahzad Mehrzad-Sadaghiani Masoud Darabi Sajjad Khani Mohammad Nouri

BACKGROUND The omega-3 fatty acid (ω-3 fatty acid) such as eicosapentaenoic acid (EPA) is currently used in the clinic as a nutritional supplement in the treatment of poly- cystic ovarian syndrome (PCOS). The present study was designed to investigate the ef- fect of EPA on the expression levels of peroxisome proliferator-activated receptor gamma (PPARγ) and cytochrome P450 aromatase (encoded by...

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