Receptor, Melanocortin, Type 3Arthritis, GoutyReceptors, MelanocortinReceptor, Melanocortin, Type 4alpha-MSHReceptor, Melanocortin, Type 1Receptor, Melanocortin, Type 2Receptors, CorticotropinMelanocyte-Stimulating HormonesAgouti-Related ProteinAgouti Signaling Proteingamma-MSHHair Colorbeta-MSHSebaceous Gland DiseasesEatingHypothalamusArcuate NucleusPeptides, CyclicPigmentationAdrenocorticotropic HormoneSkin PigmentationLeptinAppetite RegulationNeuropeptide YCosyntropinInjections, IntraventricularReceptors, Leptin