title: The effect of long-term exposure to an illuminated white background on the MSH content of the pituitary of Xenopus laevis.
mesh_terms: D000222:Adaptation, Physiological; D000661:Amphetamine / Q000494:pharmacology; D000818:Animals; D002856:Chromatophores / Q000378:metabolism; D007016:Hypophysectomy; D008027:Light; D008238:Lysergic Acid Diethylamide / Q000494:pharmacology; D008543:Melanins / Q000378:metabolism; D009074:Melanocyte-Stimulating Hormones / Q000032:analysis*; D008954:Models, Biological; D009020:Morphine / Q000378:metabolism; D010902:Pituitary Gland / Q000032:analysis* / Q000502:physiology; D012110:Reserpine / Q000494:pharmacology; D013997:Time Factors; D014981:Xenopus / Q000502:physiology*
chemical_list: D008543:Melanins; D009020:Morphine; D012110:Reserpine; D008238:Lysergic Acid Diethylamide; D009074:Melanocyte-Stimulating Hormones; D000661:Amphetamine