2022
Mispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids
Brady M, Mariani J, Koca Y, Szekely A, King R, Bloch M, Landeros-Weisenberger A, Leckman J, Vaccarino F. Mispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids. Molecular Psychiatry 2022, 27: 5007-5019. PMID: 36447010, PMCID: PMC9949887, DOI: 10.1038/s41380-022-01880-5.Peer-Reviewed Original ResearchConceptsTourette syndromeInterneuron deficitsGABAergic interneuronsHealthy controlsNeurodevelopmental underpinningsNeuropathological deficitsBG circuitryNeuropsychiatric disordersDecreased differentiationT patientsInterneuronsAltered expressionPotential mechanismsCilia disruptionSonic hedgehogOrganoidsStem cellsTS individualsPluripotent stem cellsGli transcription factorsDeficitsOrganoid differentiationEarly stagesCholinergicPatientsTourette's Syndrome: When Habit-Forming Systems Form Habits of Their Own?
Leckman J, Riddlet M. Tourette's Syndrome: When Habit-Forming Systems Form Habits of Their Own? 2022, 153-158. DOI: 10.4324/9780203822937-15.Peer-Reviewed Original ResearchCourse of Tic Severity in Tourette Syndrome: The First Two Decades
Leckman J, Zhang H, Vitale A, Lahnin F, Lynch K, Bondi C, Kim Y, Peterson B. Course of Tic Severity in Tourette Syndrome: The First Two Decades. 2022, 80-85. DOI: 10.4324/9780203822937-8.Peer-Reviewed Original ResearchYears of ageDecades of lifeTic severityTourette syndromeTS patientsTic onsetClinical evaluationPrevalence studySeverity of ticsInitial clinical evaluationConsistent time courseTime courseHigh rateOnset of pubertyInitial followPatient's coursePrognostic valueYale Child Study CenterBirth-year cohortsPatientsNatural historySyndromeCurve analysisSeverityStudy centers
2014
Meta-analysis: hoarding symptoms associated with poor treatment outcome in obsessive–compulsive disorder
Bloch MH, Bartley CA, Zipperer L, Jakubovski E, Landeros-Weisenberger A, Pittenger C, Leckman JF. Meta-analysis: hoarding symptoms associated with poor treatment outcome in obsessive–compulsive disorder. Molecular Psychiatry 2014, 19: 1025-1030. PMID: 24912494, PMCID: PMC4169729, DOI: 10.1038/mp.2014.50.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderTreatment responseOCD patientsOdds ratioFurther treatment researchCase-control studyPoor treatment outcomesDifferential treatment responseSymptoms of OCDPrimary outcomeTreatment modalitiesEligible studiesTreatment outcomesPatientsElectronic searchSymptomsTotal participantsBehavioral therapyOCD treatmentDisordersSymptom dimensionsTreatment researchDSM-5Hoarding symptomsTreatmentThe Modulating Role of Stress in the Onset and Course of Tourette’s Syndrome
Buse J, Kirschbaum C, Leckman JF, Münchau A, Roessner V. The Modulating Role of Stress in the Onset and Course of Tourette’s Syndrome. Behavior Modification 2014, 38: 184-216. PMID: 24516255, DOI: 10.1177/0145445514522056.Peer-Reviewed Original ResearchConceptsTourette syndromePsychosocial stressActivation of HPAAdrenal axis activationExacerbation of ticsNoradrenergic neurotransmissionAxis activationHPA axisTic disordersTic exacerbationAberrant markersSyndromeNeurotransmissionModulating roleExacerbationPatientsUnderlying mechanismStrong activationImmunologyActivationCommon occurrenceSubsequent changesDopaminergicAbnormalitiesPathology
2013
Chapter Nine Neuroendocrine Aspects of Tourette Syndrome
Martino D, Macerollo A, Leckman JF. Chapter Nine Neuroendocrine Aspects of Tourette Syndrome. International Review Of Neurobiology 2013, 112: 239-279. PMID: 24295624, DOI: 10.1016/b978-0-12-411546-0.00009-3.Peer-Reviewed Original ResearchConceptsTourette syndromeObsessive-compulsive disorderStereotyped behaviorSubgroup of womenAction of testosteroneAnecdotal clinical evidenceDiurnal cortisol rhythmInjection of oxytocinStress steroid hormonesPreliminary evidenceAcute stress responseClinical evidenceAdrenal axisEstrogen levelsExogenous androgensGonadal hormonesCortisol rhythmNormal restorationAnimal modelsAndrogenic steroidsNeuroendocrine aspectsPatientsGender distributionBaseline activityNatural history
2011
Biofeedback of Real-Time Functional Magnetic Resonance Imaging Data from the Supplementary Motor Area Reduces Functional Connectivity to Subcortical Regions
Hampson M, Scheinost D, Qiu M, Bhawnani J, Lacadie CM, Leckman JF, Constable RT, Papademetris X. Biofeedback of Real-Time Functional Magnetic Resonance Imaging Data from the Supplementary Motor Area Reduces Functional Connectivity to Subcortical Regions. Brain Connectivity 2011, 1: 91-98. PMID: 22432958, PMCID: PMC3621512, DOI: 10.1089/brain.2011.0002.Peer-Reviewed Original ResearchConceptsSupplementary motor areaReal-time functional magnetic resonanceFunctional connectivityTourette syndromeFunctional magnetic resonanceMotor areaSubcortical regionsBiofeedback sessionsState functional connectivityTic symptomsMagnetic resonance imaging dataHealthy subjectsTS patientsMagnetic resonanceBrain areasBiofeedbackFunctional magnetic resonance imaging (fMRI) dataFurther studiesSignificant increaseAberrant dynamicsSubjectsRecent studiesImaging dataSessionsPatients
2010
Altered immunoglobulin profiles in children with Tourette syndrome
Bos-Veneman NG, Olieman R, Tobiasova Z, Hoekstra PJ, Katsovich L, Bothwell AL, Leckman JF, Kawikova I. Altered immunoglobulin profiles in children with Tourette syndrome. Brain Behavior And Immunity 2010, 25: 532-538. PMID: 21156204, PMCID: PMC3056238, DOI: 10.1016/j.bbi.2010.12.003.Peer-Reviewed Original ResearchConceptsTourette syndromeSymptom exacerbationHealthy controlsSymptom severityPost-infectious autoimmunityB cell immunityLevels of IgG2Independent cross-sectional samplesCell immunitySerum levelsAdditional patientsIgG3 levelsIgM levelsImmunoglobulin profileHealthy childrenImmune deficiencyTrend-level significanceHealthy subjectsSerum IgG3PatientsIg profilesCross-sectional sampleIgG3Time pointsIg concentrationsPathological laughter in Gilles de la Tourette syndrome: An unusual phonic tic
Cavanna AE, Ali F, Leckman JF, Robertson MM. Pathological laughter in Gilles de la Tourette syndrome: An unusual phonic tic. Movement Disorders 2010, 25: 2233-2239. PMID: 20683924, DOI: 10.1002/mds.23216.Peer-Reviewed Original ResearchConceptsPathological laughterPhonic ticsTourette syndromeGilles de la Tourette's syndromeLa Tourette's syndromeCase seriesPathophysiological mechanismsNeurological conditionsLimbic networkTic phenomenologyPremonitory urgesSignificant impairmentGilles deInappropriate outburstsPatientsSyndromeSymptomsSubjectsInappropriate behaviorImpairment
2009
Children with Tourette's Syndrome May Suffer Immunoglobulin A Dysgammaglobulinemia: Preliminary Report
Kawikova I, Grady BP, Tobiasova Z, Zhang Y, Vojdani A, Katsovich L, Richmand BJ, Park TW, Bothwell AL, Leckman JF. Children with Tourette's Syndrome May Suffer Immunoglobulin A Dysgammaglobulinemia: Preliminary Report. Biological Psychiatry 2009, 67: 679-683. PMID: 20006327, PMCID: PMC3974615, DOI: 10.1016/j.biopsych.2009.09.034.Peer-Reviewed Original ResearchConceptsUpper respiratory tract infectionEnzyme-linked immunosorbent assayControl subjectsOCD patientsSex-matched control subjectsRespiratory tract infectionsAntineuronal antibodiesSpecific IgATract infectionsHealthy ageSydenham's choreaTotal IgAMultiple sclerosisObsessive-compulsive disorderSpecific IgGTotal immunoglobulinImmune deficiencyPostinfectious autoimmunityTourette syndromePatientsImmunosorbent assayIgAChoreaSyndromeAntigenDimensional predictors of response to SRI pharmacotherapy in obsessive–compulsive disorder
Landeros-Weisenberger A, Bloch MH, Kelmendi B, Wegner R, Nudel J, Dombrowski P, Pittenger C, Krystal JH, Goodman WK, Leckman JF, Coric V. Dimensional predictors of response to SRI pharmacotherapy in obsessive–compulsive disorder. Journal Of Affective Disorders 2009, 121: 175-179. PMID: 19577308, PMCID: PMC3974618, DOI: 10.1016/j.jad.2009.06.010.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderSRI responseSymptom dimensionsOpen-label continuation phaseClinical Global Improvement ScaleGlobal Improvement ScaleCentral serotonin systemInitial positive responseYale-Brown ObsessiveContinuation phaseMinor symptomsOrdinal logistic regressionClinical trialsSerotonin systemTreatment responseSame patientImprovement ScaleSRI treatmentPatientsSignificant associationLogistic regressionCompulsive ScaleOCD patientsOCD subjectsSymptomsValidation of the University of São Paulo Sensory Phenomena Scale:Initial Psychometric Properties
Rosario MC, Prado HS, Borcato S, Diniz JB, Shavitt RG, Hounie AG, Mathis ME, Mastrorosa RS, Velloso P, Perin EA, Fossaluza V, Pereira CA, Geller D, Leckman J, Miguel E. Validation of the University of São Paulo Sensory Phenomena Scale:Initial Psychometric Properties. CNS Spectrums 2009, 14: 315-323. PMID: 19668122, DOI: 10.1017/s1092852900020319.Peer-Reviewed Original ResearchConceptsOpen clinical interviewClinical InterviewYale-Brown ObsessiveObsessive-compulsive disorderFourth Edition Axis I DisordersEarly-onset OCD patientsYale Global Tic Severity ScaleSensory phenomenaCompulsive ScaleOCD patientsOCD subjectsAxis I DisordersTic Severity ScaleSão Paulo Sensory Phenomena ScaleSignificant differencesBeck Depression InventoryBeck Anxiety InventorySeverity scoreI disordersInter-rater reliabilityInitial psychometric propertiesSeverity ScalePremonitory urgesPatientsDepression Inventory
2007
Obsessive-Compulsive Disorder: An Open-Label Pilot Trial of Escitalopram
Galvão-de Almeida A, Quarantini LC, Góis CR, Santos-Jesus R, Miranda-Scippa AM, de Oliveira IR, da Silva Prado H, Leckman JF, Rosário MC. Obsessive-Compulsive Disorder: An Open-Label Pilot Trial of Escitalopram. CNS Spectrums 2007, 12: 519-524. PMID: 17603402, DOI: 10.1017/s1092852900021258.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderYale-Brown ObsessiveTreatment responseOpen-label pilot trialSelective serotonin reuptake inhibitorsFourth Edition Axis IOpen-label studySerotonin reuptake inhibitorsOpen-label natureEdition Axis IStructured Clinical InterviewTotal Yale-Brown ObsessiveCompulsive Scale scoresReuptake inhibitorsDosage adjustmentNew medicationsPilot trialAxis IClinical InterviewPatientsScale scoreEscitalopramExperienced psychiatristsMental disordersUseful optionDeep brain stimulation in Tourette's syndrome
Bajwa RJ, de Lotbinière AJ, King RA, Jabbari B, Quatrano S, Kunze K, Scahill L, Leckman JF. Deep brain stimulation in Tourette's syndrome. Movement Disorders 2007, 22: 1346-1350. PMID: 17580320, DOI: 10.1002/mds.21398.Peer-Reviewed Original ResearchConceptsDeep brain stimulationBilateral deep brain stimulationTourette syndromeBrain stimulationIntractable Tourette syndromeProgressive neurological impairmentAdult patientsSevere ticsObsessive-compulsive disorderNeurological impairmentMotor ticsMedial partSyndromeHead jerkThalamusStimulationPatientsImpairmentGood effect
2006
Identification of pyruvate kinase as an antigen associated with Tourette syndrome
Kansy JW, Katsovich L, McIver KS, Pick J, Zabriskie JB, Lombroso PJ, Leckman JF, Bibb JA. Identification of pyruvate kinase as an antigen associated with Tourette syndrome. Journal Of Neuroimmunology 2006, 181: 165-176. PMID: 17011640, PMCID: PMC1853370, DOI: 10.1016/j.jneuroim.2006.08.007.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAmino Acid SequenceAnimalsAntibodies, BacterialAntigensAutoantibodiesBrainChildCross ReactionsHumansImmunohistochemistryLongitudinal StudiesMaleMiceMice, Inbred C57BLMolecular Sequence DataProspective StudiesPyruvate KinaseRatsSeroepidemiologic StudiesStreptococcal InfectionsTicsTourette SyndromeConceptsStreptococcal infectionObsessive-compulsive disorderTourette syndromeAutoimmune targetExacerbated symptomsBeta-hemolytic streptococcal infectionEarly-onset obsessive-compulsive disorderStreptococcal M proteinPediatric populationTic disordersImmune responseSurface antigenInfectious strainsSyndromeInfectionDisordersPyruvate kinaseM proteinPatientsImmunoreactivitySymptomsAntigenAntibodiesGlycolytic enzymesM1 isoform
2005
Antineural antibody in patients with Tourette’s syndrome and their family members
Yeh CB, Wu CH, Tsung HC, Chen CW, Shyu JF, Leckman JF. Antineural antibody in patients with Tourette’s syndrome and their family members. Journal Of Biomedical Science 2005, 13: 101-112. PMID: 16215701, DOI: 10.1007/s11373-005-9033-y.Peer-Reviewed Original ResearchConceptsAntineural antibodiesTourette syndromeTS patientsTic disordersControl groupFirst-degree family membersAge-matched control groupFamily membersSera of controlsImmunological pathophysiologyStreptococcal infectionPrimary cell culturesPatientsInfectious agentsSyndromeNeuropsychiatric disordersWestern blottingAntibodiesRat tissuesInteraction of geneticsGenetic vulnerabilitySerumDisordersFuture studiesCell culturesTourette syndrome and tic disorders: overview and practical guide to diagnosis and treatment.
Swain JE, Leckman JF. Tourette syndrome and tic disorders: overview and practical guide to diagnosis and treatment. Innov Clin Neurosci 2005, 2: 26-36. PMID: 21152158, PMCID: PMC3000195.Peer-Reviewed Original ResearchTourette syndromeObsessive-compulsive disorderNatural historyFirst-line optionCourse of illnessAlpha-adrenergic agentsComputerized literature searchAtypical neurolepticsTic disordersAccurate prognosticationAdrenergic agentsPathophysiological modelProper diagnosisHabit reversalSyndromeLiterature searchAnxiety disordersBehavioral interventionsImproved treatmentDisordersPatientsPractical reviewTreatmentDiagnosisAttention problems
2004
Prospective Longitudinal Study of Children With Tic Disorders and/or Obsessive-Compulsive Disorder: Relationship of Symptom Exacerbations to Newly Acquired Streptococcal Infections
Luo F, Leckman JF, Katsovich L, Findley D, Grantz H, Tucker DM, Lombroso PJ, King RA, Bessen DE. Prospective Longitudinal Study of Children With Tic Disorders and/or Obsessive-Compulsive Disorder: Relationship of Symptom Exacerbations to Newly Acquired Streptococcal Infections. Pediatrics 2004, 113: e578-e585. PMID: 15173540, DOI: 10.1542/peds.113.6.e578.Peer-Reviewed Original ResearchConceptsGABHS infectionSymptom exacerbationObsessive-compulsive disorderControl subjectsTourette syndromeAcute exacerbationTime pointsHealthy control subjectsBeta-hemolytic streptococciAcute inflammatory responseAcute symptom exacerbationsProspective longitudinal studyAutoimmune mechanismsPediatric patientsStreptococcal infectionNeuropsychiatric symptomsGABHS infectionsNonspecific markerInflammatory responseTic disordersUnselected groupObsessive-compulsive symptom severityExacerbationPatientsObsessive-compulsive symptoms
2002
Tourette's syndrome
Leckman JF. Tourette's syndrome. The Lancet 2002, 360: 1577-1586. PMID: 12443611, DOI: 10.1016/s0140-6736(02)11526-1.Peer-Reviewed Original ResearchTreatment non-response in OCD: methodological issues and operational definitions
Pallanti S, Hollander E, Bienstock C, Koran L, Leckman J, Marazziti D, Pato M, Stein D, Zohar J, Consortium I. Treatment non-response in OCD: methodological issues and operational definitions. The International Journal Of Neuropsychopharmacology 2002, 5: 181-191. PMID: 12135542, DOI: 10.1017/s1461145702002900.Peer-Reviewed Original Research