2020
Impaired hypocretin/orexin system alters responses to salient stimuli in obese male mice
Tan Y, Hang F, Liu ZW, Stoiljkovic M, Wu M, Tu Y, Han W, Lee AM, Kelley C, Hajos M, Lu L, de Lecea L, de Araujo I, Picciotto M, Horvath TL, Gao XB. Impaired hypocretin/orexin system alters responses to salient stimuli in obese male mice. Journal Of Clinical Investigation 2020, 130: 4985-4998. PMID: 32516139, PMCID: PMC7456212, DOI: 10.1172/jci130889.Peer-Reviewed Original ResearchConceptsHcrt cellsObese miceDiet-induced obese miceObese male miceExcessive energy intakeNeuropeptide hypocretin/orexinHypocretin/orexinHcrt neuronsMale miceHcrt systemClinical studiesCommon causeSynaptic transmissionObese animalsEnergy intakeAcute stressCognitive functionSalient stimuliAlters responsesExact mechanismMiceHomeostatic regulationNeuronal networksBehavioral changesNeurons
2008
Hypocretin/orexin and nociceptin/orphanin FQ coordinately regulate analgesia in a mouse model of stress-induced analgesia
Xie X, Wisor JP, Hara J, Crowder TL, LeWinter R, Khroyan TV, Yamanaka A, Diano S, Horvath TL, Sakurai T, Toll L, Kilduff TS. Hypocretin/orexin and nociceptin/orphanin FQ coordinately regulate analgesia in a mouse model of stress-induced analgesia. Journal Of Clinical Investigation 2008, 118: 2471-2481. PMID: 18551194, PMCID: PMC2423866, DOI: 10.1172/jci35115.Peer-Reviewed Original ResearchMeSH KeywordsAnalgesiaAnimalsAtaxin-3Behavior, AnimalBrainCalciumCytoplasmElectrophysiologyFemaleHypothalamus, PosteriorImmunohistochemistryIntracellular Signaling Peptides and ProteinsMaleMembrane PotentialsMiceMice, Inbred C57BLMice, TransgenicNarcotic AntagonistsNeuronsNeuropeptidesNociceptin ReceptorNuclear ProteinsOpioid PeptidesOrexinsPain ThresholdPresynaptic TerminalsReaction TimeReceptors, OpioidStress, PhysiologicalTetrodotoxinTranscription FactorsConceptsStress-induced analgesiaHcrt neuronsWild-type miceHypocretin/orexinNociceptin/orphanin FQMouse hypothalamic slicesCorticotropin-releasing factorPatch-clamp recordingsOrexin/ataxinPostsynaptic effectsPresynaptic releaseOrphanin FQElectron microscopic levelHypothalamic slicesSynaptic contactsHcrt-1Hcrt systemMouse modelAnalgesiaClamp recordingsPeptidergic systemsAction potentialsBrain tissueNeuronsInput resistance
2003
Fasting Activates the Nonhuman Primate Hypocretin (Orexin) System and Its Postsynaptic Targets
Diano S, Horvath B, Urbanski HF, Sotonyi P, Horvath TL. Fasting Activates the Nonhuman Primate Hypocretin (Orexin) System and Its Postsynaptic Targets. Endocrinology 2003, 144: 3774-3778. PMID: 12933647, DOI: 10.1210/en.2003-0274.Peer-Reviewed Original ResearchConceptsPerifornical regionArcuate nucleusHypothalamic regulationC-Fos-expressing cellsLateral hypothalamic cellsC-fosMedial preoptic areaVariety of endocrineC-fos expressionDiverse brain regionsHCRT axonsLeptin levelsNuclear c-FosDorsomedial hypothalamusAsymmetric synapsesBasal forebrainPresent studyPostsynaptic targetsDorsomedial nucleusNeuropeptide Y.Preoptic areaThalamic nucleiHcrt neuronsHcrt systemAxon terminals