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
2016
Activation of α7 nicotinic acetylcholine receptors facilitates long-term potentiation at the hippocampal-prefrontal cortex synapses in vivo
Stoiljkovic M, Kelley C, Nagy D, Hurst R, Hajós M. Activation of α7 nicotinic acetylcholine receptors facilitates long-term potentiation at the hippocampal-prefrontal cortex synapses in vivo. European Neuropsychopharmacology 2016, 26: 2018-2023. PMID: 27866776, DOI: 10.1016/j.euroneuro.2016.11.003.Peer-Reviewed Original ResearchConceptsHippocampal-medial prefrontal cortex pathwayHippocampal-prefrontal cortex pathwayLong-term potentiationPrefrontal cortex pathwayCognitive processesCortex pathwayCognitive effectsMnemonic functionsCognitive functionMemory formationNeurophysiological effectsΑ7-nAChR activationNAChR activationΑ7 nAChRsHippocampal long-term potentiationSubiculum regionsΑ7 nicotinic acetylcholine receptorNicotinic acetylcholine receptorsMale ratsSaline controlsSynaptic transmissionBrain slicesTetanic stimulationAcetylcholine receptorsSynaptic plasticity
2015
Concentration-response relationship of the α7 nicotinic acetylcholine receptor agonist FRM-17874 across multiple in vitro and in vivo assays
Stoiljkovic M, Leventhal L, Chen A, Chen T, Driscoll R, Flood D, Hodgdon H, Hurst R, Nagy D, Piser T, Tang C, Townsend M, Tu Z, Bertrand D, Koenig G, Hajós M. Concentration-response relationship of the α7 nicotinic acetylcholine receptor agonist FRM-17874 across multiple in vitro and in vivo assays. Biochemical Pharmacology 2015, 97: 576-589. PMID: 26206187, DOI: 10.1016/j.bcp.2015.07.006.Peer-Reviewed Original ResearchMeSH KeywordsAlpha7 Nicotinic Acetylcholine ReceptorAnimalsBehavior, AnimalCHO CellsCricetinaeCricetulusDose-Response Relationship, DrugFemaleGene Expression RegulationHippocampusHumansLearningMaleMemoryMiceMice, Inbred C57BLOocytesProtein BindingQuinuclidinesRatsRats, Sprague-DawleyRats, WistarThiophenesXenopus laevisConceptsHippocampal theta oscillationsTheta oscillationsNeurophysiological assaysPro-cognitive effectsNovel object recognitionStimulation-induced hippocampal theta oscillationTheta oscillation powerWater T-mazeCognitive effectsNeurophysiological correlatesDose-dependent facilitationMemory acquisitionCognitive functionT-mazeObject recognitionΑ7 nAChRsHuman α7 nAChRConcentration-response relationshipSynaptic transmissionΑ7 nicotinic acetylcholine receptorSub-maximal concentrationsRat hippocampal slicesLong-term potentiationNicotinic acetylcholine receptorsOscillation power