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
2007
Prolonged wakefulness induces experience-dependent synaptic plasticity in mouse hypocretin/orexin neurons
Rao Y, Liu ZW, Borok E, Rabenstein RL, Shanabrough M, Lu M, Picciotto MR, Horvath TL, Gao XB. Prolonged wakefulness induces experience-dependent synaptic plasticity in mouse hypocretin/orexin neurons. Journal Of Clinical Investigation 2007, 117: 4022-4033. PMID: 18060037, PMCID: PMC2104495, DOI: 10.1172/jci32829.Peer-Reviewed Original ResearchConceptsHypocretin/orexin neuronsLong-term potentiationOrexin neuronsGlutamatergic synapsesSynaptic plasticitySleep lossExperience-dependent synaptic plasticityDopamine D1 receptorsChronic sleep lossSleep-wake regulationModafinil treatmentLateral hypothalamusD1 receptorsSimilar potentiationBrain slicesNeuronal activityNeuronal circuitryDopamine systemNervous systemSynaptic strengthNeuronsPathological conditionsGentle handlingMiceWakefulness
2006
Adenosine Inhibits Activity of Hypocretin/Orexin Neurons by the A1 Receptor in the Lateral Hypothalamus: A Possible Sleep-Promoting Effect
Liu ZW, Gao XB. Adenosine Inhibits Activity of Hypocretin/Orexin Neurons by the A1 Receptor in the Lateral Hypothalamus: A Possible Sleep-Promoting Effect. Journal Of Neurophysiology 2006, 97: 837-848. PMID: 17093123, PMCID: PMC1783688, DOI: 10.1152/jn.00873.2006.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAdenosineAdenosine A1 Receptor AgonistsAnimalsArousalCalcium ChannelsDose-Response Relationship, DrugExcitatory Postsynaptic PotentialsGreen Fluorescent ProteinsHypothalamic Area, LateralImmunohistochemistryIntracellular Signaling Peptides and ProteinsMiceMice, TransgenicNeural InhibitionNeuronsNeuropeptidesOrexinsOrgan Culture TechniquesPertussis ToxinReceptor, Adenosine A1SleepSynaptic TransmissionConceptsHypocretin/orexin neuronsOrexin neuronsSleep-promoting effectsLateral hypothalamusBasal forebrainA1 receptorsMiniature excitatory postsynaptic currentsVoltage-dependent calcium currentsAdenosine-mediated inhibitionHypocretin/orexin systemExcitatory postsynaptic potentialsExcitatory synaptic transmissionExcitatory postsynaptic currentsEffects of adenosineHypocretin/orexinPostsynaptic currentsOrexin systemPostsynaptic potentialsCalcium currentSynaptic transmissionBrain slicesPertussis toxinSleep promoterAdenosine receptorsAction potentials