HypothalamusHypothalamus, AnteriorHypothalamus, MiddleHypothalamus, PosteriorVentromedial Hypothalamic NucleusParaventricular Hypothalamic NucleusHypothalamic Area, LateralArcuate NucleusPreoptic AreaDorsomedial Hypothalamic NucleusMedian EminencePro-OpiomelanocortinNeuropeptidesHypothalamic HormonesNeuropeptide YNeuronsPituitary GlandRats, Sprague-DawleyBrainCorticotropin-Releasing HormoneHypothalamo-Hypophyseal SystemInjections, IntraventricularSupraoptic NucleusLeptinGonadotropin-Releasing HormoneOxytocinNeurosecretory SystemsEatingPituitary HormonesAppetite RegulationAgouti-Related ProteinProto-Oncogene Proteins c-fosReceptors, LeptinDiencephalonFeeding BehaviorReceptors, NeuropeptideSuprachiasmatic NucleusOrexin ReceptorsAnorexiaRNA, MessengerHypothalamic DiseasesRats, WistarMicroinjectionsBrain ChemistryCorticosteroneKisspeptinsbeta-EndorphinThyrotropin-Releasing HormoneBody Temperature RegulationNeural PathwaysPituitary-Adrenal SystemBody TemperatureBrain StemAdrenocorticotropic HormoneAmygdalaVasopressinsHyperphagiaPituitary Gland, Posterioralpha-MSHCircadian RhythmIn Situ HybridizationRats, Inbred StrainsEnergy MetabolismArginine VasopressinNorepinephrineEstradiolReceptor, Melanocortin, Type 4Luteinizing HormoneImmunohistochemistryHypothalamic NeoplasmsGalaninOvariectomyMelaninsProsencephalonBody WeightAnterior Hypothalamic NucleusAppetiteIntracellular Signaling Peptides and ProteinsPituitary Gland, AnteriorAutonomic PathwaysSerotoninSexual Behavior, AnimalMelanocortinsRestraint, PhysicalGene Expression RegulationPhotoperiodPonsMice, Inbred C57BLBehavior, AnimalTissue DistributionMelanocyte-Stimulating HormonesFood DeprivationStilbamidinesStress, PhysiologicalMedulla OblongataObesityEndorphinsDopamineOncogene Proteins v-fosCerebral Ventricles