Adolescents with gender dysphoria (GD) may be treated with gonadotropin releasing hormone analogs (GnRHa) to suppress puberty and, thus, the development of (unwanted) secondary sex characteristics. Since adolescence marks an important period for the development of executive functioning (EF), we determined whether the performance on the Tower of London task (ToL), a commonly used EF task, was al...

The use of a GnRH agonist (GnRHa) in central precocious puberty (CPP) is known to slow puberty progression, subsequently prevent early menarche, and attenuate the height loss caused by advanced skeletal maturation. But enhancing the final height has been so controversial that an additional approach has been used. We investigated the menarcheal age and near final height (NFH) in girls with CPP t...

Defective mini-puberty results in insufficient testosterone secretion that impairs the differentiation of gonocytes into dark-type (Ad) spermatogonia. The differentiation of gonocytes into Ad spermatogonia can be induced by administration of the gonadotropin-releasing hormone agonist, GnRHa (Buserelin, INN)). Nothing is known about the mechanism that underlies successful GnRHa treatment in the ...

This report describes the effects of gonadotropin-releasing hormone (GnRH; gonadoliberin) and an agonist, [D-Ala6, des-Gly10]GnRH ethyl amide (GnRHa), on phospholipid metabolism in rat granulosa cells isolated from mature Graafian follicles. As indicated by the incorporation of 32PO4, GnRHa rapidly (less than 2 min) stimulated the labeling of phosphatidic acid and phosphatidylinositol but had n...

Cell proliferation and apoptosis in uterine leiomyoma were investigated during therapy with GnRH agonist (GnRHa). Patients with uterine leiomyomas were injected with 3.75 mg GnRHa (depot leuprolide acetate) at intervals of 4 weeks and underwent hysterectomy or myomectomy at the 2nd, 4th, 8th, 12th, or 16th week of GnRHa therapy. Tissue sections of leiomyomas from these patients and from control...

BACKGROUND In Spanish public hospital Reproduction Units it is very problematic to perform programmed intrauterine insemination (IUI) on weekends, if indicated. Small previous pilot studies suggest that using a GnRH antagonist to avoid an LH weekend surge would allow to perform IUI on the following Monday, not impairing the expected pregnancy rate. METHODS Between 1st January 2007 and 31st De...

We investigated the cardiovascular thrombotic risk after surgical castration (SC) versus gonadotropin-releasing hormone agonists (GnRHa) in Chinese men with prostate cancer. All Chinese prostate cancer patients who were treated with SC or GnRHa from year 2000 to 2009 were reviewed and compared. The primary outcome was any new-onset of cardiovascular thrombotic events after SC or GnRHa, which wa...

We examined the effect of constant water temperature throughout year on gametogenesis, spawning success and egg/sperm/embryo quality in meagre (Argyrosomus regius). Two broodstocks were exposed to simulated natural photoperiod, andeither attenuated seasonal (SeasT, 16.4 19.6ºC) or relatively (CoT, 19.4 ± 0.6ºC).In period (May), 4 couples per group induced spawn with gonadotropin releasing hormo...

The rationale underlying the use of gonadotropin-releasing hormone analogues (GnRHa) to treat patients with central precocious puberty is reviewed. GnRHa are now considered the treatment of choice for patients with central precocious puberty, but the adult heights that these patients attain often fall short of what would be expected according to their genetic potential. This has led to investig...