Gonadotropin requirements for dominant follicle selection in GnRH agonist-treated cows
نویسندگان
چکیده
منابع مشابه
The mechanism responsible for the supraphysiologic gonadotropin surge in females treated with gonadotropin-releasing hormone (GnRH) agonist and primed with GnRH antagonist.
OBJECTIVE To elucidate the physiologic mechanism responsible for the supraphysiologic gonadotropin release from the pituitary induced by gonadotropin-releasing hormone (GnRH) agonist in female rats primed with GnRH antagonist. DESIGN Controlled experimental intervention. SETTING Government research facility. ANIMAL(S) Forty 8-week-old Sprague-Dawley rats. INTERVENTION(S) Forty oophorect...
متن کاملMini-Dose Long Gonadotropin-Releasing Hormone (GnRH) Agonist Versus Agonist Flare Stimulation Protocol for in Vitro Fertilization Poor Responders
Aim of the Work: To compare 2 stimulation protocols, mini-dose long gonadotropin releasing hormone (GnRH) agonist versus agonist flare for in vitro fertilization poor responders. Design: Prospective comparative nonrandomized clinical trial. Setting: Kasr Al Ainy IVF center, Cairo University Teaching Hospital from February 2013 to July 2013 on 50 women undergoing IVF/ICSI fulfilling the criteria...
متن کاملSelection of the dominant follicle in cattle and horses.
The nature of selection of the dominant follicle is reviewed by comparing research results between cattle and horses. In both species, emergence of a follicular wave is stimulated by an FSH surge. The surge reaches a peak by the time the follicles attain 4 mm in diameter in cattle and 13 mm in mares. In cattle, all of the growing follicles >/=5 mm contribute to the decline in FSH concentrations...
متن کاملMicrodose Flare-up Gonadotropin-releasing Hormone (GnRH) Agonist Versus GnRH Antagonist Protocols in Poor Ovarian Responders Undergoing Intracytoplasmic Sperm Injection
BACKGROUND Microdose flare-up GnRH agonist and GnRH antagonist have become more popular in the management of poor ovarian responders (POR) in recent years; however, the optimal protocol for POR patients undergoing in vitro fertilization has still been a challenge. METHODS In this observational study design, two hundred forty four poor ovarian responders were retrospectively evaluated for thei...
متن کاملSevere ovarian hyperstimulation syndrome after gonadotropin-releasing hormone (GnRH) agonist trigger and "freeze-all" approach in GnRH antagonist protocol.
OBJECTIVE To report two cases with GnRH agonist triggering and a freeze-all approach in a GnRH antagonist protocol resulting in the development of severe ovarian hyperstimulation syndrome (OHSS), requiring hospitalization and peritoneal drainage. DESIGN Two case reports. SETTING A tertiary referral center and an obstetrics and gynecology department of a hospital. PATIENT(S) Case 1 and cas...
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ژورنال
عنوان ژورنال: Reproduction
سال: 2004
ISSN: 1470-1626,1741-7899
DOI: 10.1530/rep.1.00015