HyperphagiaEatingNeuropeptide YHypothalamusAgouti-Related ProteinPro-OpiomelanocortinPrader-Willi SyndromeLeptinArcuate NucleusFeeding BehaviorObesityBody WeightEnergy MetabolismKleine-Levin SyndromeReceptor, Melanocortin, Type 4Receptors, LeptinAppetite RegulationAppetite DepressantsAppetiteEnergy IntakeHypothalamic HormonesAppetite StimulantsRats, ZuckerAdipositySatiety ResponseAdipose TissueHypothalamic Area, LateralWeight GainMice, ObeseBody CompositionGhrelinDorsomedial Hypothalamic NucleusVentromedial Hypothalamic NucleusParaventricular Hypothalamic NucleusDexfenfluramineReceptor, Serotonin, 5-HT2CInjections, IntraventricularAdipose Tissue, BrownInfusions, IntraventricularInsulinDietary FatsEating DisordersNeuropeptidesPituitary HormonesMelanocortinsOvernutritionReceptor, Serotonin, 5-HT2BReceptors, CorticotropinFood DeprivationRats, Sprague-DawleyReceptors, Neuropeptide YCorticosteroneSatiationThermogenesisRats, Inbred OLETFFood PreferencesBody Temperature Regulation