2021
The effect of ketamine on psychopathology and implications for understanding schizophrenia and its therapeutic use: a meta-analysis
Beck K, Hindley G, Borgan F, Ginestet C, McCutcheon R, Brugger S, Driesen N, Ranganathan M, D'Souza D, Taylor M, Krystal J, Howes O. The effect of ketamine on psychopathology and implications for understanding schizophrenia and its therapeutic use: a meta-analysis. BJPsych Open 2021, 7: s237-s237. PMCID: PMC8771247, DOI: 10.1192/bjo.2021.634.Peer-Reviewed Original ResearchBrief Psychiatric Rating ScaleEffects of ketaminePlacebo conditionPositive symptomsKetamine administrationKetamine effectsHealthy participantsHealthy volunteersNegative symptomsTherapeutic useAcute ketamine administrationAcute ketamine challengeMagnitude of symptomsStudy-level dataSub-group analysisPsychiatric Rating ScaleSchizophrenia-like symptomatologySchizophrenia-like symptomsMean change scoresNegative Syndrome ScalePositive psychotic symptomsSignificant increaseEffect sizeBolus dosesKetamine challenge
2020
Association of Ketamine With Psychiatric Symptoms and Implications for Its Therapeutic Use and for Understanding Schizophrenia
Beck K, Hindley G, Borgan F, Ginestet C, McCutcheon R, Brugger S, Driesen N, Ranganathan M, D’Souza D, Taylor M, Krystal JH, Howes OD. Association of Ketamine With Psychiatric Symptoms and Implications for Its Therapeutic Use and for Understanding Schizophrenia. JAMA Network Open 2020, 3: e204693. PMID: 32437573, PMCID: PMC7243091, DOI: 10.1001/jamanetworkopen.2020.4693.Peer-Reviewed Original ResearchConceptsBrief Psychiatric Rating ScalePlacebo conditionPositive symptomsNegative symptomsHealthy participantsMean differenceKetamine administrationPANSS scoresHealthy volunteersPsychotomimetic symptomsTherapeutic useAcute ketamine administrationAcute ketamine challengePlacebo-controlled studyEffect sizeMagnitude of symptomsStudy-level dataPsychiatric Rating ScaleMeta-Analyses (PRISMA) guidelinesPreferred Reporting ItemsAssociation of ketamineNegative Syndrome ScaleSignificant increaseAcute administrationBolus doses
1995
Tryptophan depletion and attenuation of cue-induced craving for cocaine
Satel SL, Krystal JH, Delgado PL, Kosten TR, Charney DS. Tryptophan depletion and attenuation of cue-induced craving for cocaine. American Journal Of Psychiatry 1995, 152: 778-783. PMID: 7726319, DOI: 10.1176/ajp.152.5.778.Peer-Reviewed Original ResearchConceptsCue-induced cravingTryptophan depletionPlacebo conditionPotent serotonin reuptake blockerCue exposureSerotonin reuptake blockersDouble-blind designAmino acid drinkVisual analogue ratingsCocaine-dependent patientsAnalogue ratingsReuptake blockerAcute reductionPlasma levelsSerotonergic systemMale inpatientsAcid drinkTryptophan levelsDrug usePatientsCocaine useCocaineRelapseCravingTest sessions