title: Interpretation of dose-response curves for luteinizing hormone release by gonadotropin-releasing hormone, related peptides, and leukotriene C4 according to a hormone/receptor/effector model.
abstract: The dose-response curves for pituitary luteinizing hormone (LH) release in response to gonadotropin-releasing hormone and its agonists are unusually broad. It appears, however, that these ligands bind to a single class of receptors. It is shown that these dose-response data can be explained by either of two models in which ligand-receptor complexes stimulate LH secretion by interacting with either of two different effector systems or by interacting with a single effector system but forming monomeric and dimeric active effector complexes. A combination of these two basic models can account for the very broad, biphasic dose-response curve reported for LH release in response to leukotriene C4.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D004305:Dose-Response Relationship, Drug; D007987:Gonadotropin-Releasing Hormone / Q000031:analogs & derivatives* / Q000378:metabolism / Q000494:pharmacology*; D007700:Kinetics; D007986:Luteinizing Hormone / Q000378:metabolism*; D008433:Mathematics; D008954:Models, Biological; D010903:Pituitary Gland, Anterior / Q000187:drug effects / Q000378:metabolism*; D011956:Receptors, Cell Surface / Q000378:metabolism; D011966:Receptors, LHRH; D013189:SRS-A / Q000494:pharmacology*
chemical_list: D011956:Receptors, Cell Surface; D011966:Receptors, LHRH; D013189:SRS-A; D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone