title: [Gonadotropin secretion after stimulation with a highly effective analog of the gonadotropin-releasing-hormone (GnRH) in normal adult human males (author's transl)].
abstract: Potent long acting anologs of GnRH are of great interest especially in view of treatment of hypothalamic hypogonadotropic hypogonadism and of cryptorchidism. To find necessary parenteral doses of such a substance immunoreactive serum LH and FSH were measured in 4 normal adult human males after s.c. injection of various doses of D-Leu6-des-Gly10-GnRH-EA. 5 microgram of the GnRH anlog were necessary to obtain increased serum gonadotropins over a period of at least 8 h. Comparable maximal levels were seen after i.v. bolus injection of 25 microgram natural GnRH a dose as used in diagnostic routine tests in 3 probands. Comparing the areas under the curves of LH secretion an over 15 times greater effectiveness of the analog was calculated.
mesh_terms: D000328:Adult; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology*; D006065:Gonadotropins, Pituitary / Q000378:metabolism*; D006801:Humans; D007031:Hypothalamus / Q000187:drug effects / Q000502:physiology; D008297:Male; D013268:Stimulation, Chemical
chemical_list: D006065:Gonadotropins, Pituitary; D007987:Gonadotropin-Releasing Hormone
vernacular_title: Gonadotropinsekretion nach Stimulation mit einem hochwirksamen Analogon des Gonadotropin-Releasing-Hormon (GnRH) bei gesunden Männern.