title: Assessment of pituitary response to nasal application of synthetic gonadotropin-releasing hormone in men.
abstract: An attempt has been made to assess the pituitary response to the nasal application of synthetic gonadotropin-releasing hormone (GnRH) in three oligospermic and two azoospermic men. Intranasal administration of 3 mg of GnRH in aqueous or natural plant gum solution produced a pituitary response pattern similar to that produced by the intramuscular injection of 100 microng, with respect to plasma concentrations of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). No technical difficulties or side effects were observed. GnRH in a nasal drop preparation seems to be effective in releasing LH and FSH in men. These findings may have a practical application in those cases where long-term therapy with the hormone is indicated.
mesh_terms: D000281:Administration, Intranasal; D000328:Adult; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007248:Infertility, Male / Q000188:drug therapy; D007273:Injections, Intramuscular; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D009845:Oligospermia / Q000188:drug therapy; D010902:Pituitary Gland / Q000187:drug effects*; D010906:Pituitary Hormone-Releasing Hormones / Q000008:administration & dosage* / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D010906:Pituitary Hormone-Releasing Hormones; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone