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
Differential Effects of an NR2B NAM and Ketamine on Synaptic Potentiation and Gamma Synchrony: Relevance to Rapid-Onset Antidepressant Efficacy
Nagy D, Stoiljkovic M, Menniti FS, Hajós M. Differential Effects of an NR2B NAM and Ketamine on Synaptic Potentiation and Gamma Synchrony: Relevance to Rapid-Onset Antidepressant Efficacy. Neuropsychopharmacology 2015, 41: 1486-1494. PMID: 26404843, PMCID: PMC4832008, DOI: 10.1038/npp.2015.298.Peer-Reviewed Original ResearchConceptsAuditory-evoked potentialsAntidepressant effectsSynaptic potentiationAntidepressant efficacyAuditory gatingRapid-onset antidepressant effectsEffects of ketaminePrimary auditory cortexReceptor channel blockerDifferent acute effectsNMDA receptor inhibitionNegative allosteric modulatorsPotential mechanistic underpinningsReceptor inhibitionSystemic administrationAcute effectsNeurophysiological biomarkersTranslatable biomarkersChannel blockersDrug eliminationAuditory cortexNeurophysiological parametersDrug AdministrationGamma band powerKetamineConcentration-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
2008
Local antagonism of intertrigeminal region metabotropic glutamate receptors exacerbates apneic responses to intravenous serotonin
Stoiljkovic M, Radulovacki M, Carley D. Local antagonism of intertrigeminal region metabotropic glutamate receptors exacerbates apneic responses to intravenous serotonin. Respiratory Physiology & Neurobiology 2008, 165: 137-142. PMID: 19026767, PMCID: PMC2773821, DOI: 10.1016/j.resp.2008.10.019.Peer-Reviewed Original ResearchConceptsIntravenous serotonin infusionMetabotropic glutamate receptorsIntertrigeminal regionSerotonin infusionReceptor antagonistGlutamate receptorsBroad-spectrum glutamate receptor antagonistType 1 metabotropic glutamate receptorMetabotropic glutamate antagonistPontine intertrigeminal regionVagal afferent pathwaysDuration of apneaGlutamate receptor antagonistsAMPA receptor antagonistDose-dependent fashionRespiratory pattern changesApnea expressionApneic responseIntravenous serotoninSpontaneous apneasReflex apneaRespiratory dysrhythmiaAfferent pathwaysIntravenous infusionGlutamate antagonists