Results 21 to 30 of about 665,097 (197)

Comparison of the effects of Duphaston and Cetrotide on oocyte and embryo quality in women undergoing ICSI: A cross-sectional study

International Journal of Reproductive BioMedicine, 2020
Background: Premature luteinizing hormone (LH) surge is one of the causes for assisted reproductive technology cycle cancellation, and it is needed to find novel approaches with improved efficacy and safety profile.
Niloofar Motaref, Sheyda Jouhari, Afsaneh Mohammadzadeh, Somaieh Kazemnejad, Narges Madadi, Sadaf Eghtedari, Abolfazl Ghoodjani   +6 more
doaj   +1 more source

Dose-finding study of daily GnRH antagonist for the prevention of premature LH surges in IVF/ICSI patients: optimal changes in LH and progesterone for clinical pregnancy [PDF]

Human Reproduction, 2005
An optimal range of LH concentrations for achieving pregnancy has not been established. The aim of this study was to investigate the effect of various LH levels induced by different GnRH antagonist doses on IVF outcome.This was a prospective, single centre study including 144 IVF patients, stimulated with recombinant FSH from cycle day 2, and co ...
Huirne, J.A.F., van Loenen, A.C., Schats, R., Mcdonnell, J., Hompes, P.G.A., Schoemaker, J., Homburg, R.R., Lambalk, C.B.   +7 more
openaire   +2 more sources

Identification of the LH surge by measuring intact and total immunoreactivity in urine for prediction of ovulation time [PDF]

, 2022
Objectives In our earlier study, we separated three different molecular forms of urinary LH-ir (U-LH-ir) by gel filtration and identified them by immunoassay in urine from regularly menstruating women on periovulatory days.
Tapanainen, Juha S., Stenman, Ulf-Håkan, Hero, Matti, Demir, And, Alfthan, Henrik, Passioni, Amro, Ulf-Håkan Stenman, And Demir, Juha S. Tapanainen, Matti Hero, Amro Passioni, Henrik Alfthan   +11 more
core   +1 more source

Effect of cetrorelix dose on premature LH surge during ovarian stimulation

Reproductive BioMedicine Online, 2008
Previous studies have shown that ovarian stimulation with clomiphene citrate (CC), human menopausal gonadotrophin (HMG), and multiple-dose gonadotrophin-releasing hormone (GnRH) antagonist is associated with a high rate of premature LH surge. This study assessed whether administration of the GnRH antagonist cetrorelix at an incremental dose or at a ...
Y H, Lin, K M, Seow, H J, Chen, B C, Hsieh, L W, Huang, C R, Tzeng, J L, Hwang   +6 more
openaire   +2 more sources

New protocol for commencing the GnRH antagonist in assisted conception treatment cycles: elimination of the premature LH surge with similar pregnancy rates [PDF]

Reproduction Nutrition Development, 2004
GnRH antagonists have been used with increasing frequency in assisted reproduction treatments over the past few years and have been associated with quicker and more profound LH suppression and shorter treatment cycles than conventional GnRH agonists.
Mavrides, Andreas, Lavery, Stuart, Trew, Geoffrey   +2 more
openaire   +2 more sources

Study of Positive and Negative Consequences of Using GnRH Antagonist in Intrauterine Insemination Cycles [PDF]

International Journal of Fertility and Sterility, 2009
Background To assess the usefulness of premature luteinization hormone (LH) surge prevention in an intrauterine insemination (IUI) cycle by GnRH antagonist administration Materials and methods Sixty patients with unexplained or mild male infertility or
Shirin Ghazizadeh, Elham Pourmatroud, Mamak Shariat, Masomeh Masomi, Maryam Bagheri   +4 more
doaj   +1 more source

Gonadotropin releasing hormone analogs as part of controlled ovarian stimulation

F&S Reports, 2023
I describe how we identified the need to block the luteinizing hormone (LH) surge when trying to control the processes of luteinization and ovulation within the clinic.
Richard Fleming, Ph.D.
doaj   +1 more source

Dynorphin and GABAA Receptor Signaling Contribute to Progesterone's Inhibition of the LH Surge in Female Mice

, 2020
Progesterone can block estrogen-induced luteinising hormone (LH) surge secretion and can be used clinically to prevent premature LH surges. The blocking effect of progesterone on the LH surge is mediated through its receptor in the anteroventral ...
Chen, Qiuju, Lyu, Qifeng, Wang, Li, O'Byrne, Kevin T., Kuang, Yanping, Yu, Sha, Lass, Geffen, Long, Hui, Ivanova, Deyana, Liu, Yali, Li, Xiaofeng, He, Wen, Wang, Yun   +12 more
core   +1 more source

The comparison between fixed versus degressive doses of medroxyprogesterone acetate combined with letrozole in patients of progestin-primed ovarian stimulation protocol: a propensity score-matched study

Frontiers in Endocrinology, 2023
ObjectiveTo explore the cycle characteristics and pregnancy outcomes of progestin-primed ovarian stimulation (PPOS) using fixed versus degressive doses of medroxyprogesterone acetate (MPA) in conjunction with letrozole (LE) in infertile women by ...
Ying Zhang, Ying Zhang, Ying Zhang, Ying Zhang, Ying Zhang, Hao Li, Hao Li, Shanshan Zhu, Shanshan Zhu, Shanshan Zhu, Shanshan Zhu, Shanshan Zhu, Shengfang Jiang, Shengfang Jiang, Shengfang Jiang, Shengfang Jiang, Shengfang Jiang, Wenxian Zhao, Wenxian Zhao, Xiaoning Wang, Xiaoning Wang, Xiaoning Wang, Xiaoning Wang, Xiaoning Wang, Liu Tian, Liu Tian, Liu Tian, Liu Tian, Liu Tian, Guangming Zhao, Guangming Zhao, Guangming Zhao, Nongqiao He, Nongqiao He, Nongqiao He, Honglu Diao, Honglu Diao, Honglu Diao, Honglu Diao, Honglu Diao, Hong Cao, Changjun Zhang, Changjun Zhang, Changjun Zhang, Changjun Zhang, Changjun Zhang   +45 more
doaj   +1 more source

The endocrine effects of multiple folliculogenesis

Middle East Fertility Society Journal, 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 of pituitary and ovarian ...
Ioannis E. Messinis
doaj   +1 more source