title: Endorphins supersensitize frog skin melanophores to isoproterenol, but subsensitize them to alpha-melanocyte-stimulating hormone.
mesh_terms: D000818:Animals; D001001:Anura; D004723:Endorphins / Q000494:pharmacology*; D004745:Enkephalins / Q000494:pharmacology; D007545:Isoproterenol / Q000494:pharmacology*; D009074:Melanocyte-Stimulating Hormones / Q000494:pharmacology*; D008547:Melanophores / Q000187:drug effects / Q000502:physiology*; D010860:Pigments, Biological / Q000378:metabolism; D011898:Ranidae; D012867:Skin / Q000187:drug effects; D012879:Skin Physiological Phenomena; D013045:Species Specificity; D013329:Structure-Activity Relationship; D014981:Xenopus
chemical_list: D004723:Endorphins; D004745:Enkephalins; D010860:Pigments, Biological; D009074:Melanocyte-Stimulating Hormones; D007545:Isoproterenol