2020
Maternal perceptions of father involvement among refugee and disadvantaged families in Beirut, Lebanon
Hein S, Bick J, Issa G, Aoude L, Maalouf C, Awar A, Nourallah S, Zonderman AL, Householder S, Katsovich L, Khoshnood K, Moore C, Salah R, Britto PR, Leckman JF, Ponguta LA. Maternal perceptions of father involvement among refugee and disadvantaged families in Beirut, Lebanon. PLOS ONE 2020, 15: e0229670. PMID: 32134961, PMCID: PMC7058288, DOI: 10.1371/journal.pone.0229670.Peer-Reviewed Original Research
2019
The impact of attention deficit hyperactivity disorder in obsessive‐compulsive disorder subjects
Blanco‐Vieira T, Santos M, Ferrão YA, Torres AR, Miguel EC, Bloch MH, Leckman JF, do Rosario MC. The impact of attention deficit hyperactivity disorder in obsessive‐compulsive disorder subjects. Depression And Anxiety 2019, 36: 533-542. PMID: 30990937, DOI: 10.1002/da.22898.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderAdult OCD patientsObsessive-compulsive disorderDeficit hyperactivity disorderOCD patientsClinical characteristicsExact testFeatures of ADHDHyperactivity disorderSubgroup of patientsAdult obsessive-compulsive disorderComorbid attention deficit hyperactivity disorderSpecific clinical featuresCross-sectional studyObsessive-compulsive disorder (OCD) subjectsLogistic regression analysisFisher's exact testBrazilian Research ConsortiumMann-Whitney testAdult patientsRheumatic feverDevelopment of interventionsClinical featuresObsessive-compulsive spectrum disordersLifetime prevalence
2018
A multicenter examination and strategic revisions of the Yale Global Tic Severity Scale
McGuire JF, Piacentini J, Storch EA, Murphy TK, Ricketts EJ, Woods DW, Walkup JW, Peterson AL, Wilhelm S, Lewin AB, McCracken JT, Leckman JF, Scahill L. A multicenter examination and strategic revisions of the Yale Global Tic Severity Scale. Neurology 2018, 90: e1711-e1719. PMID: 29653992, PMCID: PMC5952973, DOI: 10.1212/wnl.0000000000005474.Peer-Reviewed Original ResearchConceptsTic symptom severityTic scoreTIC numbersYale Global Tic Severity Scale (YGTSS) scoresSymptom severityYale Global Tic Severity ScaleYGTSS total tic scoreTotal tic scoreSimilar clinical characteristicsInternal consistencySeverity Scale scoreCross-sectional studyTic Severity ScaleDelphi consensus processClinical characteristicsPhonic ticsTic disordersMulticenter examinationImpairment scoresGood internal consistencySeverity ScaleScale scoreSymptom ChecklistDiagnostic InterviewStrong internal consistency
2017
Elevated plasma concentrations of S100 calcium-binding protein B and tumor necrosis factor alpha in children with autism spectrum disorders
Guloksuz SA, Abali O, Cetin E, Gazioglu S, Deniz G, Yildirim A, Kawikova I, Guloksuz S, Leckman JF. Elevated plasma concentrations of S100 calcium-binding protein B and tumor necrosis factor alpha in children with autism spectrum disorders. Brazilian Journal Of Psychiatry 2017, 39: 195-200. PMID: 28099628, PMCID: PMC7111377, DOI: 10.1590/1516-4446-2015-1843.Peer-Reviewed Original ResearchConceptsTumor necrosis factor alphaNecrosis factor alphaS100B concentrationsPlasma concentrationsFactor alphaChildhood Autism Rating ScaleS100 calcium-binding protein BCalcium-binding protein BElevated plasma concentrationsTNF-α concentrationsAutism spectrum disorderIL-17AIL-10Cytokine concentrationsInflammatory cytokinesIL-6Peripheral concentrationsHealthy childrenIL-4Plasma levelsSpectrum disorderImmune functionInterferon gammaImmune systemS100B
2015
Obsessive–compulsive symptoms are associated with psychiatric comorbidities, behavioral and clinical problems: a population-based study of Brazilian school children
Alvarenga PG, do Rosario MC, Cesar RC, Manfro GG, Moriyama TS, Bloch MH, Shavitt RG, Hoexter MQ, Coughlin CG, Leckman JF, Miguel EC. Obsessive–compulsive symptoms are associated with psychiatric comorbidities, behavioral and clinical problems: a population-based study of Brazilian school children. European Child & Adolescent Psychiatry 2015, 25: 175-182. PMID: 26015374, DOI: 10.1007/s00787-015-0723-3.Peer-Reviewed Original ResearchConceptsFamily History ScreenObsessive-compulsive disorderObsessive-compulsive symptomsSchool-aged childrenChild Behavior ChecklistUnaffected controlsPediatric-onset obsessive-compulsive disorderPresence of OCSPopulation-based studyComorbid psychiatric disordersMajor depressive disorderWell-Being AssessmentOCD groupBrazilian school childrenGroup of childrenPsychiatric comorbidityDepressive disorderClinical impactFunctional impairmentPsychiatric disordersClinical problemOCS groupDiagnostic groupsSignificant socio-demographic differencesSocio-demographic differencesMortality in children, adolescents, and adults with attention deficit hyperactivity disorder: a nationwide cohort study
Dalsgaard S, Østergaard SD, Leckman JF, Mortensen PB, Pedersen MG. Mortality in children, adolescents, and adults with attention deficit hyperactivity disorder: a nationwide cohort study. The Lancet 2015, 385: 2190-2196. PMID: 25726514, DOI: 10.1016/s0140-6736(14)61684-6.Peer-Reviewed Original ResearchMeSH KeywordsAccidentsAdolescentAdultAge of OnsetAttention Deficit and Disruptive Behavior DisordersAttention Deficit Disorder with HyperactivityCase-Control StudiesCause of DeathChildChild, PreschoolConduct DisorderCross-Sectional StudiesDenmarkFemaleHumansInfantMalePoisson DistributionRisk FactorsSubstance-Related DisordersYoung AdultConceptsMortality rate ratiosAttention deficit hyperactivity disorderHighest mortality rate ratiosSubstance use disordersOppositional defiant disorderDeficit hyperactivity disorderExcess mortalityConduct disorderUse disordersMortality rateDefiant disorderHyperactivity disorderNationwide cohort studyDanish national registersCommon mental disordersExclusion of individualsCohort studyLundbeck FoundationCommon causeFamily historyCohort membersLarge cohortPsychiatric disordersUnnatural causesDanish individualsObsessive-compulsive symptom dimensions in a population-based, cross-sectional sample of school-aged children
Alvarenga PG, Cesar RC, Leckman JF, Moriyama TS, Torres AR, Bloch MH, Coughlin CG, Hoexter MQ, Manfro GG, Polanczyk GV, Miguel EC, do Rosario MC. Obsessive-compulsive symptom dimensions in a population-based, cross-sectional sample of school-aged children. Journal Of Psychiatric Research 2015, 62: 108-114. PMID: 25702286, DOI: 10.1016/j.jpsychires.2015.01.018.Peer-Reviewed Original ResearchConceptsSchool-aged childrenPsychiatric symptomsFamily History ScreenAdditional clinical factorsSymptom dimensionsCommunity-based sampleObsessive-compulsive symptom dimensionsClinical factorsObsessive-compulsive disorderPsychiatric comorbidityClinical impairmentSchool impairmentCross-sectional sampleAge 6Clinical samplesFamilial aggregationBiological mothersChildrenBiological relativesSymptomsPrevalenceAge distributionImpairmentNon-clinical samplePresent study
2013
Brain mechanisms for prepulse inhibition in adults with Tourette syndrome: Initial findings
Zebardast N, Crowley MJ, Bloch MH, Mayes LC, Vander Wyk BV, Leckman JF, Pelphrey KA, Swain JE. Brain mechanisms for prepulse inhibition in adults with Tourette syndrome: Initial findings. Psychiatry Research 2013, 214: 33-41. PMID: 23916249, PMCID: PMC3932431, DOI: 10.1016/j.pscychresns.2013.05.009.Peer-Reviewed Original ResearchConceptsTourette syndromeFunctional magnetic resonance imagingHealthy subjectsTic severityWhole-brain functional magnetic resonance imagingYale Global Tic Severity ScaleTactile startle responseCase-control study designTic Severity ScaleCortical-striatal circuitsBrain activityMagnetic resonance imagingMultiple brain regionsLeft middle frontal gyrusMiddle frontal gyrusDegree of PPIPulse-alone stimuliBlock-design fMRI paradigmTic symptomsNeuropathological dataHealthy controlsPrepulse inhibitionDevelopmental neuropsychiatric disordersSensorimotor gatingLeft caudate
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 concentrations
2008
Neuropsychiatric Disorders Associated With Streptococcal Infection: A Case-Control Study Among Privately Insured Children
Leslie DL, Kozma L, Martin A, Landeros A, Katsovich L, King RA, Leckman JF. Neuropsychiatric Disorders Associated With Streptococcal Infection: A Case-Control Study Among Privately Insured Children. Journal Of The American Academy Of Child & Adolescent Psychiatry 2008, 47: 1166-1172. PMID: 18724258, PMCID: PMC2783578, DOI: 10.1097/chi.0b013e3181825a3d.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAttention Deficit Disorder with HyperactivityCase-Control StudiesChildChild, PreschoolCross-Sectional StudiesDepressive Disorder, MajorFemaleHealth SurveysHumansIncidenceInsurance, HealthMaleMigraine DisordersNeurocognitive DisordersObsessive-Compulsive DisorderOdds RatioOtitis MediaRiskSinusitisStreptococcal InfectionsTic DisordersTourette SyndromeUnited StatesConceptsMajor depressive disorderAttention-deficit/hyperactivity disorderPrior streptococcal infectionStreptococcal infectionObsessive-compulsive disorderTic disordersTourette syndromeNeuropsychiatric disordersConditional logistic regression modelsStreptococcal sore throatDiagnosis of OCDCase-control studyLogistic regression modelsSore throatIncident diagnosisEpidemiologic evidenceDepressive disorderSubsequent diagnosisNoninfectious conditionsScarlet feverChildren ages 4Immune systemInfectious diseasesInfectionDiagnosis
2005
Adaptive, Emotional, and Family Functioning of Children With Obsessive-Compulsive Disorder and Comorbid Attention Deficit Hyperactivity Disorder
Sukhodolsky DG, do Rosario-Campos MC, Scahill L, Katsovich L, Pauls DL, Peterson BS, King RA, Lombroso PJ, Findley DB, Leckman JF. Adaptive, Emotional, and Family Functioning of Children With Obsessive-Compulsive Disorder and Comorbid Attention Deficit Hyperactivity Disorder. American Journal Of Psychiatry 2005, 162: 1125-1132. PMID: 15930061, PMCID: PMC2291297, DOI: 10.1176/appi.ajp.162.6.1125.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PsychologicalAdolescentAttention Deficit Disorder with HyperactivityChildComorbidityCross-Sectional StudiesDiagnostic and Statistical Manual of Mental DisordersEmotionsFamily HealthFemaleHealth StatusHumansMaleObsessive-Compulsive DisorderPersonality InventoryPsychiatric Status Rating ScalesSurveys and QuestionnairesConceptsAttention deficit hyperactivity disorderObsessive-compulsive disorderComorbid attention deficit hyperactivity disorderDiagnosis of OCDDeficit hyperactivity disorderFamily functioningEmotional adjustmentHyperactivity disorderVineland Adaptive Behavior ScalesSelf-reported anxietyDaily living skillsAdaptive Behavior ScalesAdolescents ages 7Self-reported depressionBest-estimate DSM-IV diagnosesGroup of childrenAdaptive functioningLevel of impairmentChild functioningParent ratingsComparison childrenEmotional functioningComprehensive batteryLiving skillsDSM-IV diagnosis
2004
Altered Interhemispheric Connectivity in Individuals With Tourettes Disorder
Plessen KJ, Wentzel-Larsen T, Hugdahl K, Feineigle P, Klein J, Staib LH, Leckman JF, Bansal R, Peterson BS. Altered Interhemispheric Connectivity in Individuals With Tourettes Disorder. American Journal Of Psychiatry 2004, 161: 2028-2037. PMID: 15514403, DOI: 10.1176/appi.ajp.161.11.2028.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAttention Deficit Disorder with HyperactivityCase-Control StudiesCerebral CortexComorbidityCorpus CallosumCross-Sectional StudiesFunctional LateralityHumansMagnetic Resonance ImagingMaleNeuronal PlasticityObsessive-Compulsive DisorderPrefrontal CortexSeverity of Illness IndexTourette SyndromeConceptsCorpus callosum sizeCallosum sizeTourette's disorderCorpus callosumCerebral hemispheresComparison subjectsCross-sectional case-control studyMidsagittal corpus callosum areaCorpus callosum areaCase-control studyEffects of medicationAge 30 yearsCortical inhibitory interneuronsHigh-resolution magnetic resonanceHealthy comparison subjectsMajor commissureComorbid illnessesTic symptomsOrbitofrontal cortical volumeCortical volumeInhibitory interneuronsInterhemispheric connectivityInhibitory inputsTic severityPrior evidence
1994
"Just right" perceptions associated with compulsive behavior in Tourette's syndrome
Leckman JF, Walker DE, Goodman WK, Pauls DL, Cohen DJ. "Just right" perceptions associated with compulsive behavior in Tourette's syndrome. American Journal Of Psychiatry 1994, 151: 675-680. PMID: 8166308, DOI: 10.1176/ajp.151.5.675.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge of OnsetAgedAwarenessBasal GangliaChildComorbidityCompulsive BehaviorCross-Sectional StudiesFemaleHumansMaleMiddle AgedObsessive BehaviorObsessive-Compulsive DisorderPerceptionPersonality InventoryPsychiatric Status Rating ScalesSensationSeverity of Illness IndexTourette SyndromeConceptsTic disordersObsessive-compulsive disorderTourette syndromeObsessive-compulsive symptomsCompulsive behaviorsCross-sectional studyYale-Brown Obsessive Compulsive ScaleObsessive Compulsive ScaleTic symptomsChronic disordersPhonic ticsChildhood onsetEpidemiological studiesSyndromeAdult subjectsBrain regionsSymptomsCompulsive ScaleDisordersSensorimotor informationSubjectsThree-quartersCompulsive actsPathobiologySeverity
1993
Premonitory urges in Tourette's syndrome
Leckman JF, Walker DE, Cohen DJ. Premonitory urges in Tourette's syndrome. American Journal Of Psychiatry 1993, 150: 98-102. PMID: 8417589, DOI: 10.1176/ajp.150.1.98.Peer-Reviewed Original ResearchConceptsTic disordersPremonitory urgesTourette syndromeYale Global Tic Severity ScaleHyperkinetic movement disordersCross-sectional studyTic Severity ScaleVoluntary responseMidline abdomenTic symptomsPhonic ticsMovement disordersEpidemiological studiesSeverity ScaleCase findingTic severityPrevalence dataAdult subjectsBrain regionsSyndromeTic behaviorsInvoluntary motorFeeling of reliefDisordersAnatomical regions