2024
Medial prefrontal cortex neurotransmitter abnormalities in posttraumatic stress disorder with and without comorbidity to major depression
Swanberg K, Prinsen H, Averill C, Campos L, Kurada A, Krystal J, Petrakis I, Averill L, Rothman D, Abdallah C, Juchem C. Medial prefrontal cortex neurotransmitter abnormalities in posttraumatic stress disorder with and without comorbidity to major depression. NMR In Biomedicine 2024, 37: e5220. PMID: 39054694, DOI: 10.1002/nbm.5220.Peer-Reviewed Original ResearchPosttraumatic stress disorderMedial prefrontal cortexStress disorderPosttraumatic stress disorder patientsPosttraumatic stress disorder diagnosisChronic psychiatric conditionImpact of psychiatric comorbiditiesComorbid MDDPrefrontal cortexDepressive disorderTraumatic stressorsPsychiatric conditionsMDDPsychiatric comorbiditiesNeurotransmitter abnormalitiesConcentrations of glutamateMetabolite abnormalitiesHealthy controlsDisordersPattern of abnormalitiesParticipantsGlutamateIn vivo protonMetabolic abnormalitiesDepressionFindings of PTSD-specific deficits in default mode network strength following a mild experimental stressor
Averill C, Averill L, Akiki T, Fouda S, Krystal J, Abdallah C. Findings of PTSD-specific deficits in default mode network strength following a mild experimental stressor. NPP—Digital Psychiatry And Neuroscience 2024, 2: 9. PMID: 38919723, PMCID: PMC11197271, DOI: 10.1038/s44277-024-00011-y.Peer-Reviewed Original ResearchPosttraumatic stress disorderMajor depressive disorderConnectivity deficitsConnection strengthPrimary diagnosis of posttraumatic stress disorderExperimental stressorsDiagnosis of posttraumatic stress disorderResting-state functional magnetic resonance imagingFunctional magnetic resonance imagingVentromedial prefrontal cortexDMN connectivity strengthStress-induced reductionEffect of groupDMN alterationsPrefrontal cortexDepressive disorderDMN connectivityStressor taskStress disorderBrain region(sAcute stressorFunctional connectivityDMNExploratory analysisDeficits366. The Effect of Early Life Trauma on Prefrontal Synaptic Strength in Major Depressive and Posttraumatic Stress Disorders
Del Motte M, Tamman A, Jiang L, Averill C, Mason G, Averill L, Abdallah C. 366. The Effect of Early Life Trauma on Prefrontal Synaptic Strength in Major Depressive and Posttraumatic Stress Disorders. Biological Psychiatry 2024, 95: s249. DOI: 10.1016/j.biopsych.2024.02.865.Peer-Reviewed Original Research
2023
Examining the association between posttraumatic stress disorder and disruptions in cortical networks identified using data-driven methods
Yang J, Huggins A, Sun D, Baird C, Haswell C, Frijling J, Olff M, van Zuiden M, Koch S, Nawijn L, Veltman D, Suarez-Jimenez B, Zhu X, Neria Y, Hudson A, Mueller S, Baker J, Lebois L, Kaufman M, Qi R, Lu G, Říha P, Rektor I, Dennis E, Ching C, Thomopoulos S, Salminen L, Jahanshad N, Thompson P, Stein D, Koopowitz S, Ipser J, Seedat S, du Plessis S, van den Heuvel L, Wang L, Zhu Y, Li G, Sierk A, Manthey A, Walter H, Daniels J, Schmahl C, Herzog J, Liberzon I, King A, Angstadt M, Davenport N, Sponheim S, Disner S, Straube T, Hofmann D, Grupe D, Nitschke J, Davidson R, Larson C, deRoon-Cassini T, Blackford J, Olatunji B, Gordon E, May G, Nelson S, Abdallah C, Levy I, Harpaz-Rotem I, Krystal J, Morey R, Sotiras A. Examining the association between posttraumatic stress disorder and disruptions in cortical networks identified using data-driven methods. Neuropsychopharmacology 2023, 49: 609-619. PMID: 38017161, PMCID: PMC10789873, DOI: 10.1038/s41386-023-01763-5.Peer-Reviewed Original ResearchPosttraumatic stress disorderStructural covariance networksCortical thicknessPTSD diagnosisInsular cortexPTSD patientsCingulate cortexSymptom severityBilateral superior frontal cortexStress disorderGreater cortical thicknessLower cortical thicknessChildhood trauma severitySuperior frontal cortexRegression analysisAnterior cingulate cortexTrauma-exposed controlsPosterior cingulate cortexPrefrontal regulatory regionsPTSD symptom severityComorbid depressionMotor cortexHealthy controlsFrontal cortexAlcohol abuseDSM-5 Criterion-A-Based Trauma Types in Service Members and Veterans Seeking Treatment for Posttraumatic Stress Disorder
Benfer N, Grunthal B, Dondanville K, Young-McCaughan S, Blankenship A, Abdallah C, Back S, Flanagan J, Foa E, Fox P, Krystal J, Marx B, McGeary D, McLean C, Pruiksma K, Resick P, Roache J, Shiroma P, Sloan D, Taylor D, Wachen J, López-Roca A, Nicholson K, Schobitz R, Schrader C, Sharrieff A, Yarvis J, Mintz J, Keane T, Peterson A, Litz B. DSM-5 Criterion-A-Based Trauma Types in Service Members and Veterans Seeking Treatment for Posttraumatic Stress Disorder. Psychological Trauma Theory Research Practice And Policy 2023, 16: 1218-1228. PMID: 37410416, PMCID: PMC10770283, DOI: 10.1037/tra0001537.Peer-Reviewed Original ResearchPosttraumatic stress disorderTrauma typesBehavioral health problemsHealth problemsStress disorderMoral injuryParticipants' ratingsLife threatAftermath of violenceMental health problemsDSM-5 criteriaTraumatic eventsParticipants' endorsementClinical trialsDifferent traumasTyping schemeTraumatic lossAssessor judgementsService membersTraumaClinical researchersParticipantsUnique contextInjuryMilitary personnelPsychometric Properties of the Self-Injurious Thoughts and Behaviors Interview–Short Form Among U.S. Active Duty Military Service Members and Veterans
Stanley I, Marx B, Fina B, Young-McCaughan S, Tyler H, Sloan D, Blankenship A, Dondanville K, Walker J, Boffa J, Bryan C, Brown L, Straud C, Mintz J, Abdallah C, Back S, Blount T, DeBeer B, Flanagan J, Foa E, Fox P, Fredman S, Krystal J, McDevitt-Murphy M, McGeary D, Pruiksma K, Resick P, Roache J, Shiroma P, Taylor D, Wachen J, Kaplan A, López-Roca A, Nicholson K, Schobitz R, Schrader C, Sharrieff A, Yarvis J, Litz B, Keane T, Peterson A. Psychometric Properties of the Self-Injurious Thoughts and Behaviors Interview–Short Form Among U.S. Active Duty Military Service Members and Veterans. Assessment 2023, 30: 2332-2346. PMID: 36644835, DOI: 10.1177/10731911221143979.Peer-Reviewed Original ResearchConceptsBehaviors Interview-Short FormPosttraumatic stress disorderSelf-injurious thoughtsMilitary service membersService membersDiscriminant validitySelf-report measuresInterview-based measuresSuicidal ideationSelf-report questionnairesActive duty military service membersSuicide-related thoughtsActive duty service membersPTSD symptomsStress disorderRelated constructsGood convergentConvergent validityResponse formatPsychometric propertiesSuicide risk assessmentInterrater reliabilityHigh interrater reliabilityIdeationVeteransThe potential of ketamine for posttraumatic stress disorder: a review of clinical evidence
Ragnhildstveit A, Roscoe J, Bass L, Averill C, Abdallah C, Averill L. The potential of ketamine for posttraumatic stress disorder: a review of clinical evidence. Therapeutic Advances In Psychopharmacology 2023, 13: 20451253231154125. PMID: 36895431, PMCID: PMC9989422, DOI: 10.1177/20451253231154125.Peer-Reviewed Original ResearchPosttraumatic stress disorderClinical evidenceStress disorderMethyl-d-aspartate (NMDA) receptor antagonistLow patient engagementRobust antidepressant effectsOpen-label studyOnset of actionPotential of ketamineQuality of lifeMedical comorbiditiesAntidepressant effectsChart reviewRefractory casesDisease chronicityClinical presentationRandomized trialsCase reportDevastating conditionReceptor antagonistMajor depressionPharmacological approachesPsychiatric disordersPharmacological agentsTherapeutic safety
2022
Abnormal glutamate metabolism in prefrontal cortex of post-traumatic stress disorder linked to comorbidity with major depression
Swanberg K, Prinsen H, Averill C, Campos L, Kurada A, Krystal J, Petrakis I, Averill L, Abdallah C, Juchem C. Abnormal glutamate metabolism in prefrontal cortex of post-traumatic stress disorder linked to comorbidity with major depression. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2022 DOI: 10.58530/2022/3344.Peer-Reviewed Original Research
2019
Apolipoprotein E gene polymorphism, posttraumatic stress disorder, and cognitive function in older U.S. veterans: Results from the National Health and Resilience in Veterans Study
Averill LA, Abdallah CG, Levey DF, Han S, Harpaz‐Rotem I, Kranzler HR, Southwick SM, Krystal JH, Gelernter J, Pietrzak RH. Apolipoprotein E gene polymorphism, posttraumatic stress disorder, and cognitive function in older U.S. veterans: Results from the National Health and Resilience in Veterans Study. Depression And Anxiety 2019, 36: 834-845. PMID: 31385647, DOI: 10.1002/da.22912.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderExecutive functionCognitive functioningStress disorderΕ4 carrier statusΕ4 carriersVeterans StudyCognitive dysfunctionAttention/concentrationGreater cognitive difficultiesLower cognitive functioningOlder U.S. veteransΕ4 allele carrier statusPerseverative errorsCognitive difficultiesReplication sampleCarrier statusCognitive functionImportance of assessingNational HealthCognitive declinePredictive effectApolipoprotein E gene polymorphismE gene polymorphismΕ4 allele carriers
2018
The Neurobiology and Pharmacotherapy of Posttraumatic Stress Disorder
Abdallah CG, Averill LA, Akiki TJ, Raza M, Averill CL, Gomaa H, Adikey A, Krystal JH. The Neurobiology and Pharmacotherapy of Posttraumatic Stress Disorder. The Annual Review Of Pharmacology And Toxicology 2018, 59: 171-189. PMID: 30216745, PMCID: PMC6326888, DOI: 10.1146/annurev-pharmtox-010818-021701.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderStress disorderTreatment of PTSDBiology of PTSDExert complex effectsBrain functionNeurobiologySynaptic gainPathology modelRapid-acting antidepressantsBroader frameworkDisordersWordsPutative mechanismsDysconnectivitySynaptic lossPharmacotherapeutic optionsClinical efficacyCompelling efficacyPerspectiveAntidepressantsDrug developmentComplex effectsPathologyEfficacy