title: Chronic treatment with [D-Ala6, des Gly-NH2(10)]-LHRH ethylamide reversibly delays puberty in the female rat.
abstract: Luteinizing hormone-releasing hormone (LHRH) agonist analogs have been suggested as a useful treatment for precocious puberty, though there is some concern that long-term treatment might be deleterious to normal sexual development. We have taken advantage of the very short maturation period of the female rat (approximately 35 days from birth) to examine the effects of chronic (daily) treatment with [D-Ala6, des Gly-NH2(10)]-LHRH ethylamide. We have observed that this treatment (either 1 or 2 micrograms/day) from day 5 after birth significantly delays sexual maturation but does not affect subsequent sexual cycles.
mesh_terms: D000818:Animals; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000031:analogs & derivatives* / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D012741:Sexual Maturation / Q000187:drug effects*; D014621:Vagina / Q000254:growth & development
chemical_list: D007987:Gonadotropin-Releasing Hormone; C010661:surfagon