2023
Long term structural and functional neural changes following a single infusion of Ketamine in PTSD
Duek O, Korem N, Li Y, Kelmendi B, Amen S, Gordon C, Milne M, Krystal J, Levy I, Harpaz-Rotem I. Long term structural and functional neural changes following a single infusion of Ketamine in PTSD. Neuropsychopharmacology 2023, 48: 1648-1658. PMID: 37270621, PMCID: PMC10517133, DOI: 10.1038/s41386-023-01606-3.Peer-Reviewed Original ResearchMeSH KeywordsExtinction, PsychologicalHumansKetamineMidazolamPilot ProjectsPsychotherapyStress Disorders, Post-TraumaticConceptsKetamine recipientsSingle infusionMain study outcomeTiming of administrationEnd of treatmentNMDA receptor antagonistFunctional neural changesFrequency of administrationSignificant clinical implicationsTrauma-focused psychotherapyBrief exposure therapyAmygdala-vmPFC connectivityPost-retrieval extinctionKetamine doseKetamine administrationReceptor antagonistTrauma scriptsNeural changesClinical implicationsDecreased connectivityExposure therapyKetamineTrauma memoriesStudy outcomesUncinate fasciculusA pilot randomized controlled trial of ketamine in Borderline Personality Disorder
Fineberg S, Choi E, Shapiro-Thompson R, Dhaliwal K, Neustadter E, Sakheim M, Null K, Trujillo-Diaz D, Rondeau J, Pittaro G, Peters J, Corlett P, Krystal J. A pilot randomized controlled trial of ketamine in Borderline Personality Disorder. Neuropsychopharmacology 2023, 48: 991-999. PMID: 36804489, PMCID: PMC10209175, DOI: 10.1038/s41386-023-01540-4.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntidepressive AgentsBorderline Personality DisorderDouble-Blind MethodHumansKetamineMidazolamPilot ProjectsConceptsBorderline personality disorderSecondary outcome measuresOutcome measuresSocio-occupational functioningSuicidal ideationPilot studyTrial of ketaminePersonality disorderInfusion of ketaminePrimary outcome measureEffects of ketamineMidazolam groupAdverse eventsKetamine groupClinical benefitMood symptomsKetamineFDA approvalDrug midazolamInfusionBPD symptomsLarger studyDepressed moodSymptomsChronic mood
2021
Effects of the Fyn kinase inhibitor saracatinib on ventral striatal activity during performance of an fMRI monetary incentive delay task in individuals family history positive or negative for alcohol use disorder. A pilot randomised trial
Patel KT, Stevens MC, Dunlap A, Gallagher A, O’Malley S, DeMartini K, Potenza MN, Krystal JH, Pearlson GD. Effects of the Fyn kinase inhibitor saracatinib on ventral striatal activity during performance of an fMRI monetary incentive delay task in individuals family history positive or negative for alcohol use disorder. A pilot randomised trial. Neuropsychopharmacology 2021, 47: 840-846. PMID: 34475522, PMCID: PMC8882177, DOI: 10.1038/s41386-021-01157-5.Peer-Reviewed Original ResearchMeSH KeywordsAlcohol DrinkingAlcoholismBenzodioxolesHumansMagnetic Resonance ImagingMotivationPilot ProjectsQuinazolinesRewardConceptsProtein tyrosine kinasesSrc regulationSrc familyProtein kinaseTyrosine kinaseFyn kinaseSrc inhibitorSrc/FynDependent pathwayKinaseNMDAR upregulationNMDAR functionNMDA receptorsRegulationSaracatinibGluN2B subunitGlutamate receptorsFynInhibitorsReceptorsSubunitsN-methyl-D-aspartate (NMDA) glutamate receptorsPrevious evidence
2019
Association of Combined Naltrexone and Ketamine With Depressive Symptoms in a Case series of Patients With Depression and Alcohol Use Disorder
Yoon G, Petrakis IL, Krystal JH. Association of Combined Naltrexone and Ketamine With Depressive Symptoms in a Case series of Patients With Depression and Alcohol Use Disorder. JAMA Psychiatry 2019, 76: 337-338. PMID: 30624551, PMCID: PMC6439824, DOI: 10.1001/jamapsychiatry.2018.3990.Peer-Reviewed Original Research
2018
The effects of ketamine on prefrontal glutamate neurotransmission in healthy and depressed subjects
Abdallah CG, De Feyter HM, Averill LA, Jiang L, Averill CL, Chowdhury GMI, Purohit P, de Graaf RA, Esterlis I, Juchem C, Pittman BP, Krystal JH, Rothman DL, Sanacora G, Mason GF. The effects of ketamine on prefrontal glutamate neurotransmission in healthy and depressed subjects. Neuropsychopharmacology 2018, 43: 2154-2160. PMID: 29977074, PMCID: PMC6098048, DOI: 10.1038/s41386-018-0136-3.Peer-Reviewed Original ResearchConceptsGlutamate-glutamine cyclingGlutamate neurotransmissionAntidepressant effectsKetamine effectsRodent studiesN-methyl-D-aspartate receptor antagonistRapid antidepressant effectsClinician-Administered Dissociative States ScaleEffects of ketamineGlutamine enrichmentKetamine infusionGlutamate releaseKetamine administrationSubanesthetic dosesPsychotomimetic effectsReceptor antagonistNormal salineSchizophrenia pathophysiologyFrontal cortexMRS scansDepressed subjectsKetamineNeurotransmissionPrefrontal cortexPilot study
2012
Glycine treatment of the risk syndrome for psychosis: Report of two pilot studies
Woods SW, Walsh BC, Hawkins KA, Miller TJ, Saksa JR, D'Souza DC, Pearlson GD, Javitt DC, McGlashan TH, Krystal JH. Glycine treatment of the risk syndrome for psychosis: Report of two pilot studies. European Neuropsychopharmacology 2012, 23: 931-940. PMID: 23089076, PMCID: PMC4028140, DOI: 10.1016/j.euroneuro.2012.09.008.Peer-Reviewed Original ResearchConceptsPilot studyRisk syndromeSyndrome patientsNegative symptomsShort-term pilot studyEffect sizeAdjunctive antipsychotic medicationOpen-label studyPatients meeting criteriaNMDA receptor functionDurability of effectPsychosis risk symptomsGlycine site agonistsGroup effect sizesWeeks of evaluationAntipsychotic medicationSyndrome subjectsPromising effect sizesTreatment needsLarge effect sizesMeeting criteriaCognitive impairmentReduced symptomsReceptor functionSymptoms
2007
The resistance to depressive relapse in menopausal women undergoing tryptophan depletion: preliminary findings
Epperson CN, Amin Z, Naftolin F, Cappiello A, Czarkowski KA, Stiklus S, Anderson GM, Krystal JH. The resistance to depressive relapse in menopausal women undergoing tryptophan depletion: preliminary findings. Journal Of Psychopharmacology 2007, 21: 414-420. PMID: 16891341, DOI: 10.1177/0269881106067330.Peer-Reviewed Original ResearchConceptsMenopausal womenTryptophan depletionSelective serotonin reuptake inhibitor fluoxetineAcute tryptophan depletion paradigmSerotonin reuptake inhibitor fluoxetineTryptophan depletion paradigmPathogenesis of depressionReuptake inhibitor fluoxetineMajor depressive episodeAcute tryptophan depletionRelapse of depressionWorsening of moodWeeks of recoveryActive tryptophan depletionWechsler Memory ScaleAssessment of moodDepressive episodeRisk factorsDepressive relapseMajor depressionSignificant worseningNeuroendocrine functionVerbal memorySerotonergic contributionMemory Scale
2003
A placebo-controlled, cross-over trial of lamotrigine in depersonalization disorder
Sierra M, Phillips ML, Ivin G, Krystal J, David AS. A placebo-controlled, cross-over trial of lamotrigine in depersonalization disorder. Journal Of Psychopharmacology 2003, 17: 103-105. PMID: 12680746, DOI: 10.1177/0269881103017001712.Peer-Reviewed Original ResearchConceptsDepersonalization disorderEfficacy of lamotrigineWeeks of treatmentCross-over trialCross-over periodCross-over designDSM-IV depersonalization disorderSole medicationGlutamate releaseLamotriginePatientsCambridge Depersonalization ScaleDisordersTreatmentDepersonalization ScalePlaceboMedicationsHyperactivityRespondersTrialsWeeks
2002
Sensory gating and psychosis vulnerability in cocaine-dependent individuals: preliminary data
Boutros NN, Gelernter J, Gooding DC, Cubells J, Young A, Krystal JH, Kosten T. Sensory gating and psychosis vulnerability in cocaine-dependent individuals: preliminary data. Biological Psychiatry 2002, 51: 683-686. PMID: 11955469, DOI: 10.1016/s0006-3223(01)01237-9.Peer-Reviewed Original Research
2001
Elevated motor threshold in drug-free, cocaine-dependent patients assessed with transcranial magnetic stimulation
Boutros N, Lisanby S, Tokuno H, Torello M, Campbell D, Berman R, Malison R, Krystal J, Kosten T. Elevated motor threshold in drug-free, cocaine-dependent patients assessed with transcranial magnetic stimulation. Biological Psychiatry 2001, 49: 369-373. PMID: 11239908, DOI: 10.1016/s0006-3223(00)00948-3.Peer-Reviewed Original ResearchConceptsTranscranial magnetic stimulationCortical excitabilityCocaine-dependent subjectsMotor thresholdControl subjectsMagnetic stimulationSingle-pulse transcranial magnetic stimulationExcitatory/inhibitory balancePulse transcranial magnetic stimulationChronic cocaine abuseMotor cortical regionsChronic cocaine abusersNormal control subjectsNumber of neurotransmittersAlters cortical excitabilityCocaine-dependent patientsCortical inhibitoryCerebral cortexInhibitory balanceAwake subjectsChronic cocaineCocaine intoxicationCocaine abusePsychiatric populationsCortical regions
2000
Similarities in the Disturbances in Cortical Information Processing in Alcoholism and Aging: A Pilot Evoked Potential Study
Boutros N, Reid M, Petrakis I, Campbell D, Torello M, Krystal J. Similarities in the Disturbances in Cortical Information Processing in Alcoholism and Aging: A Pilot Evoked Potential Study. International Psychogeriatrics 2000, 12: 513-525. PMID: 11263717, DOI: 10.1017/s1041610200006621.Peer-Reviewed Original ResearchConceptsInformation processingCortical information processingSensory gatingPaired-click paradigmOlder healthy subjectsAlcohol dependenceSensory gating deficitsStimulus classificationNovel stimuliOddball paradigmHealthy individualsYoung healthy groupEvoked potential studiesDSM-IV criteriaPotential studiesHealthy subjectsGender-matched groupAged healthy individualsGender-matched healthy individualsGating deficitsMiddle-aged individualsPsychotic symptomsOlder groupProcessingAlcoholic patients