2022
Positive modulation of N-methyl-D-aspartate receptors in the mPFC reduces the spontaneous recovery of fear
Lee B, Pothula S, Wu M, Kang H, Girgenti MJ, Picciotto MR, DiLeone RJ, Taylor JR, Duman RS. Positive modulation of N-methyl-D-aspartate receptors in the mPFC reduces the spontaneous recovery of fear. Molecular Psychiatry 2022, 27: 2580-2589. PMID: 35418600, PMCID: PMC9135632, DOI: 10.1038/s41380-022-01498-7.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderFear extinctionInfralimbic medial prefrontal cortexFear conditioning modelEnhanced fear extinctionFear-based behaviorsProlonged stress modelMedial prefrontal cortexSpontaneous recoveryIL-mPFCPTSD modelPTSD treatmentStress disorderPrefrontal cortexSPS modelN-methyl-D-aspartate receptor modulatorsBrain-derived neurotrophic factorN-methyl-D-aspartate receptorsBehavioral effectsIncreased attentionMPFCPreclinical findingsPyramidal neuronsNeurotrophic factorMale mice
2020
GABA interneurons are the cellular trigger for ketamine’s rapid antidepressant actions
Gerhard DM, Pothula S, Liu RJ, Wu M, Li XY, Girgenti MJ, Taylor SR, Duman CH, Delpire E, Picciotto M, Wohleb ES, Duman RS. GABA interneurons are the cellular trigger for ketamine’s rapid antidepressant actions. Journal Of Clinical Investigation 2020, 130: 1336-1349. PMID: 31743111, PMCID: PMC7269589, DOI: 10.1172/jci130808.Peer-Reviewed Original ResearchConceptsRapid antidepressant actionsAntidepressant actionGABA interneuronsMedial prefrontal cortexCell-specific knockdownPrinciple neuronsPrefrontal cortexDeletion of GluN2BSingle subanesthetic doseBehavioral actionsAction of ketamineNMDA receptor antagonistExcitatory postsynaptic currentsCellular triggersMajor unmet needKetamine's rapid antidepressant actionsGABA subtypeGluN2B-NMDARsSST interneuronsPostsynaptic currentsReceptor antagonistDepressed patientsSubanesthetic doseExtracellular glutamateMood disorders
2019
Ketamine rapidly reverses stress-induced impairments in GABAergic transmission in the prefrontal cortex in male rodents
Ghosal S, Duman CH, Liu RJ, Wu M, Terwilliger R, Girgenti MJ, Wohleb E, Fogaca MV, Teichman EM, Hare B, Duman RS. Ketamine rapidly reverses stress-induced impairments in GABAergic transmission in the prefrontal cortex in male rodents. Neurobiology Of Disease 2019, 134: 104669. PMID: 31707118, DOI: 10.1016/j.nbd.2019.104669.Peer-Reviewed Original ResearchConceptsChronic unpredictable stressMedial prefrontal cortexInhibitory post-synaptic currentsGABAergic transmissionSingle doseMale rodentsPrefrontal cortexImbalance of inhibitoryMPFC pyramidal neuronsDepressive-like behaviorDepression-like behaviorStress-induced impairmentModel of depressionPost-synaptic currentsPrecise cellular mechanismsGABAergic proteinsAntidepressant ketamineSynaptic deficitsGABAergic synapsesPyramidal neuronsSynaptic markersGABA markersGlutamate neurotransmissionDepressive behaviorGABA neurotransmission
2016
Ketamine accelerates fear extinction via mTORC1 signaling
Girgenti MJ, Ghosal S, LoPresto D, Taylor JR, Duman RS. Ketamine accelerates fear extinction via mTORC1 signaling. Neurobiology Of Disease 2016, 100: 1-8. PMID: 28043916, PMCID: PMC5907920, DOI: 10.1016/j.nbd.2016.12.026.Peer-Reviewed Original ResearchConceptsPost-traumatic stress disorderMedial prefrontal cortexTreatment of PTSDFear conditioningRetrieval of extinctionExpression of extinctionActivity-dependent effectsTraumatic memoriesStress disorderExtinction exposurePTSD patientsPrefrontal cortexEffects of ketamineGlutamate NMDA receptor antagonistSymptom severityConditioningInfusion of ketamineExtinctionCuesRodent modelsMemoryKetamine administrationReceptor antagonistPresent studyNMDA receptor antagonist