Agouti Signaling ProteinHair ColorReceptors, MelanocortinReceptors, Corticotropinalpha-MSHIntercellular Signaling Peptides and ProteinsPro-OpiomelanocortinReceptor, Melanocortin, Type 4PigmentationAgouti-Related ProteinNeuropeptide YHypothalamusMelanocyte-Stimulating HormonesArcuate NucleusMelanocortinsReceptor, Melanocortin, Type 1HyperphagiaProteinsEatingLeptinReceptor, Melanocortin, Type 3MelaninsGenes, Intracisternal A-ParticleObsessive HoardingBody WeightRats, Inbred LECAppetite RegulationSkin PigmentationEnergy Metabolism