2011
Trajectories of Depression Severity in Clinical Trials of Duloxetine: Insights Into Antidepressant and Placebo Responses
Gueorguieva R, Mallinckrodt C, Krystal JH. Trajectories of Depression Severity in Clinical Trials of Duloxetine: Insights Into Antidepressant and Placebo Responses. JAMA Psychiatry 2011, 68: 1227-1237. PMID: 22147842, PMCID: PMC3339151, DOI: 10.1001/archgenpsychiatry.2011.132.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntidepressive AgentsData Interpretation, StatisticalDepressive Disorder, MajorDouble-Blind MethodDuloxetine HydrochlorideFemaleHumansLinear ModelsMalePatient DropoutsPlacebo EffectPsychiatric Status Rating ScalesRandomized Controlled Trials as TopicSelective Serotonin Reuptake InhibitorsSeverity of Illness IndexThiophenesTreatment OutcomeConceptsSelective serotonin reuptake inhibitorsPlacebo-treated patientsComparator selective serotonin reuptake inhibitorsHAM-D scoresClinical trialsAntidepressant treatmentPlacebo responseMajor depressionDouble-blind clinical trialHigh placebo response rateSerotonergic antidepressant treatmentPlacebo response ratesSerotonin reuptake inhibitorsAntidepressant nonrespondersPlacebo armMost patientsAntidepressant respondersMedication risksReuptake inhibitorsSerotonergic antidepressantsResponder statusTreatment responseClinical trajectoriesDepression scoresDepression severityThe antidepressant effect of ketamine is not associated with changes in occipital amino acid neurotransmitter content as measured by [1H]-MRS
Valentine GW, Mason GF, Gomez R, Fasula M, Watzl J, Pittman B, Krystal JH, Sanacora G. The antidepressant effect of ketamine is not associated with changes in occipital amino acid neurotransmitter content as measured by [1H]-MRS. Psychiatry Research 2011, 191: 122-127. PMID: 21232924, PMCID: PMC3061550, DOI: 10.1016/j.pscychresns.2010.10.009.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntidepressive AgentsBlood PressureDepressive Disorder, MajorDissociative DisordersFemaleGamma-Aminobutyric AcidGlutamic AcidHeart RateHumansKetamineMagnetic Resonance SpectroscopyMaleMiddle AgedOccipital LobeProtonsPsychiatric Status Rating ScalesPsychometricsRetrospective StudiesSingle-Blind MethodStatistics as TopicTime FactorsYoung AdultConceptsMajor depressive disorderAntidepressant effectsAntidepressant actionNeurotransmitter contentNMDA receptor antagonist ketamineProton magnetic resonance spectroscopy methodConventional antidepressant treatmentKetamine's antidepressant actionSingle intravenous doseSingle-blind conditionsAntidepressant treatmentChronic treatmentKetamine infusionIntravenous dosePharmacodynamic basisDepressive disorderAcute actionsMRS scansOccipital cortexDepressive symptomsDepression scoresRating ScaleBaseline measuresInfusionKetamine
2010
A Prospective Cohort Study Investigating Factors Associated With Depression During Medical Internship
Sen S, Kranzler HR, Krystal JH, Speller H, Chan G, Gelernter J, Guille C. A Prospective Cohort Study Investigating Factors Associated With Depression During Medical Internship. JAMA Psychiatry 2010, 67: 557-565. PMID: 20368500, PMCID: PMC4036806, DOI: 10.1001/archgenpsychiatry.2010.41.Peer-Reviewed Original ResearchMeSH KeywordsAdultCohort StudiesDepressionDepressive DisorderDepressive Disorder, MajorFemaleGenotypeHealth StatusHumansInternship and ResidencyLife Change EventsMaleMedicinePolymorphism, Single NucleotidePrevalenceProspective StudiesRisk FactorsSerotonin Plasma Membrane Transport ProteinsStress, PsychologicalStudents, MedicalSurveys and QuestionnairesConceptsDepressive symptomsPHQ-9 depression scoresProspective cohort studyPrevalence of depressionPatient Health QuestionnaireProportion of participantsMedical internsMedical internshipGreater increasePHQ-9 criteriaCohort studyHealth QuestionnaireMood symptomsGeneral populationDepression scoresUS hospitalsSymptomsSerotonin transporter protein geneGenetic polymorphismsDepressionGenetic factorsLife stressMarked increaseRecent reportsResidency programs
2006
Brain-Derived Neurotrophic Factor–5-HTTLPR Gene Interactions and Environmental Modifiers of Depression in Children
Kaufman J, Yang BZ, Douglas-Palumberi H, Grasso D, Lipschitz D, Houshyar S, Krystal JH, Gelernter J. Brain-Derived Neurotrophic Factor–5-HTTLPR Gene Interactions and Environmental Modifiers of Depression in Children. Biological Psychiatry 2006, 59: 673-680. PMID: 16458264, DOI: 10.1016/j.biopsych.2005.10.026.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentBrain-Derived Neurotrophic FactorCase-Control StudiesChildChild AbuseChild, PreschoolChi-Square DistributionDepressionDNA Mutational AnalysisEnvironmentFemaleGene FrequencyGenetic VariationGenotypeHumansMaleMethioninePredictive Value of TestsPsychiatric Status Rating ScalesRisk FactorsSerotonin Plasma Membrane Transport ProteinsSeverity of Illness IndexSocial SupportSurveys and QuestionnairesValineConceptsBrain-derived neurotrophic factor (BDNF) genotypeNeurotrophic factor genotypeSocial supportHigher depression scoresBDNF genotypeProportion scoreBDNF geneProtective effectDepression scoresComparison subjectsPsychiatric symptomatologyModerate riskEnvironmental modifiersDepressionFactor genotypeChildrenDNA specimensStandard research instrumentsShort alleleRiskMaltreatment historyCurrent dataScoresAncestry informative markersChild abuse
2004
Social supports and serotonin transporter gene moderate depression in maltreated children
Kaufman J, Yang BZ, Douglas-Palumberi H, Houshyar S, Lipschitz D, Krystal JH, Gelernter J. Social supports and serotonin transporter gene moderate depression in maltreated children. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 17316-17321. PMID: 15563601, PMCID: PMC534414, DOI: 10.1073/pnas.0404376101.Peer-Reviewed Original ResearchConceptsSocial supportDevelopment of depressionGene promoter polymorphismTransporter gene promoter polymorphismSerotonin transporter gene promoter polymorphismHigher depression ratingsDepression ratingsClinical dataModerate depressionPsychiatric disordersDepression scoresPromoter polymorphismNegative sequelaeModerate riskDepressionEarly stressChildrenS genotypeHistory of maltreatmentRiskShort allele
1996
Effects of Rapid Tryptophan Depletion in Patients With Seasonal Affective Disorder in Remission After Light Therapy
Lam RW, Zis AP, Grewal A, Delgado PL, Charney DS, Krystal JH. Effects of Rapid Tryptophan Depletion in Patients With Seasonal Affective Disorder in Remission After Light Therapy. JAMA Psychiatry 1996, 53: 41-44. PMID: 8540776, DOI: 10.1001/archpsyc.1996.01830010043007.Peer-Reviewed Original ResearchConceptsRapid tryptophan depletionSeasonal affective disorderTryptophan depletionLight therapyClinical remissionAffective disordersTryptophan levelsDouble-blind crossover studyRecurrent major depressive episodesMajor depressive episodeBright light therapyEffect of therapyFree tryptophan levelsAntidepressant effectsCrossover studySerotonergic mechanismsDepressive episodeAntidepressant drugsTherapeutic effectSignificant relapseDepression scoresPatientsTherapyRemissionNonseasonal depression