HypothalamusHypothalamus, AnteriorHormonesHypothalamus, MiddleThyroid HormonesFollicle Stimulating HormoneLuteinizing HormoneGonadotropin-Releasing HormoneHypothalamus, PosteriorVentromedial Hypothalamic NucleusPituitary HormonesParathyroid HormoneGonadal Steroid HormonesParaventricular Hypothalamic NucleusAdrenocorticotropic HormoneHypothalamic HormonesHypothalamic Area, LateralPreoptic AreaArcuate NucleusPituitary GlandCorticotropin-Releasing HormoneHuman Growth HormoneReceptors, Thyroid HormoneMedian EminencePro-OpiomelanocortinDorsomedial Hypothalamic NucleusNeuropeptidesEstradiolRats, Sprague-DawleyHypothalamo-Hypophyseal SystemTriiodothyronineNeuronsNeuropeptide YGrowth Hormone-Releasing HormoneLeptinNeurosecretory SystemsBrainProlactinPeptide HormonesJuvenile HormonesRNA, MessengerTestosteroneInjections, IntraventricularEatingHormone Replacement TherapySupraoptic NucleusPituitary Gland, AnteriorProgesteronePituitary Hormones, PosteriorThyroxineOvariectomyMelanocyte-Stimulating HormonesThyrotropinOxytocinAppetite RegulationReceptors, NeuropeptideCorticosteroneGastrointestinal HormonesGonadal Hormonesalpha-MSHAgouti-Related ProteinPituitary Hormones, AnteriorReceptors, LeptinRadioimmunoassayRats, WistarProto-Oncogene Proteins c-fosAnti-Mullerian HormoneThyroid Hormone Receptors betaEstrogensRats, Inbred StrainsFeeding BehaviorPituitary Hormone-Releasing HormonesPituitary-Adrenal SystemGene Expression RegulationHypothalamic DiseasesSuprachiasmatic NucleusHormone Antagonistsbeta-EndorphinKisspeptinsDiencephalonTime FactorsBody WeightAnorexiaOvaryOrexin ReceptorsHydrocortisoneGhrelinImmunohistochemistryPituitary Gland, PosteriorCircadian RhythmPregnancyFollicle Stimulating Hormone, beta SubunitArginine VasopressinCastrationMicroinjectionsBrain ChemistryReceptors, Corticotropin-Releasing HormoneThyroid Hormone Receptors alphaInsulinGlycoprotein Hormones, alpha Subunit