2020
Risk factors for obsessive–compulsive symptoms. Follow-up of a community-based youth cohort
Macul Ferreira de Barros P, do Rosário MC, Szejko N, Polga N, Requena GL, Ravagnani B, Fatori D, Batistuzzo MC, Hoexter MQ, Rohde LA, Polanczyk GV, Leckman JF, Miguel EC, de Alvarenga PG. Risk factors for obsessive–compulsive symptoms. Follow-up of a community-based youth cohort. European Child & Adolescent Psychiatry 2020, 30: 89-104. PMID: 32076869, DOI: 10.1007/s00787-020-01495-7.Peer-Reviewed Original ResearchConceptsObsessive-compulsive symptomsRisk factorsAbsence of breastfeedingOCS scoresBaseline anxiety disordersPotential risk factorsLarge community cohortLow socioeconomic statusRegression analysisMental health assessmentMaternal stress levelsLower intelligence quotientCommunity cohortChildhood adversityLower ageHigher OCS scoresAnxiety disordersPsychopathological factorsSocioeconomic statusGenetic factorsSignificant predictorsBaselineHealth assessmentScoresAge
2018
Obsessive-Compulsive Symptomatology in Community Youth: Typical Development or a Red Flag for Psychopathology?
Barzilay R, Patrick A, Calkins ME, Moore TM, Wolf DH, Benton TD, Leckman JF, Gur RC, Gur RE. Obsessive-Compulsive Symptomatology in Community Youth: Typical Development or a Red Flag for Psychopathology? Journal Of The American Academy Of Child & Adolescent Psychiatry 2018, 58: 277-286.e4. PMID: 30738554, DOI: 10.1016/j.jaac.2018.06.038.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderMajor psychiatric conditionsObsessive-compulsive symptomsPsychiatric conditionsAssociation of OCSStructured psychiatric interviewSerious psychopathologyRed flagsSuicide ideationMental health helpDepressive episodePsychiatric evaluationPsychiatric interviewLifetime diagnosisPhiladelphia Neurodevelopmental CohortSymptomsSubstantial associationCommunity youthOCS symptomsFemale participantsHigh rateNeurodevelopmental CohortOCD criteriaPsychosisPhenotypic heterogeneity
2017
Longitudinal outcomes of children with pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections (PANDAS)
Leon J, Hommer R, Grant P, Farmer C, D’Souza P, Kessler R, Williams K, Leckman JF, Swedo S. Longitudinal outcomes of children with pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections (PANDAS). European Child & Adolescent Psychiatry 2017, 27: 637-643. PMID: 29119300, DOI: 10.1007/s00787-017-1077-9.Peer-Reviewed Original ResearchConceptsPediatric autoimmune neuropsychiatric disordersAutoimmune neuropsychiatric disordersIntravenous immunoglobulinStreptococcal infectionDose of IVIGNeuropsychiatric disordersPlacebo-controlled trialSignificant obsessive-compulsive symptomsPopulation of childrenCognitive behavioral therapySubacute illnessSydenham's choreaBlinded infusionChronic coursePsychiatric medicationsTreatment modalitiesSpecific symptomsChildhood-onset OCDLongitudinal courseNatural historyObsessive-compulsive symptomsBehavioral therapyExacerbationParents of participantsTelephone interviewsThe Child Behavior Checklist—Obsessive-Compulsive Subscale Detects Severe Psychopathology and Behavioral Problems Among School-Aged Children
Saad LO, do Rosario MC, Cesar RC, Batistuzzo MC, Hoexter MQ, Manfro GG, Shavitt RG, Leckman JF, Miguel EC, Alvarenga PG. The Child Behavior Checklist—Obsessive-Compulsive Subscale Detects Severe Psychopathology and Behavioral Problems Among School-Aged Children. Journal Of Child And Adolescent Psychopharmacology 2017, 27: 342-348. PMID: 28151703, PMCID: PMC5439443, DOI: 10.1089/cap.2016.0125.Peer-Reviewed Original ResearchConceptsObsessive-compulsive symptomsPsychiatric comorbidityPredictive valueBehavioral problemsDSM-IV psychiatric diagnosesPresence of OCSGroup of patientsHigh-risk cohortSignificant obsessive-compulsive symptomsNegative predictive valuePositive predictive valueHigh rateSeverity of OCSRisk cohortSchool-Aged ChildrenDepressive disorderFunctional impairmentPsychiatric diagnosisChild Behavior ChecklistComorbiditiesSevere psychopathologyBeing AssessmentScreening toolPediatric OCDAnxiety disorders
2016
Understanding the covariation of tics, attention‐deficit/hyperactivity, and obsessive‐compulsive symptoms: A population‐based adult twin study
Pinto R, Monzani B, Leckman JF, Rück C, Serlachius E, Lichtenstein P, Mataix‐Cols D. Understanding the covariation of tics, attention‐deficit/hyperactivity, and obsessive‐compulsive symptoms: A population‐based adult twin study. American Journal Of Medical Genetics Part B Neuropsychiatric Genetics 2016, 171: 938-947. PMID: 26919823, DOI: 10.1002/ajmg.b.32436.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivityObsessive-compulsive symptomsObsessive-compulsive disorderTic disordersChronic tic disorderAttention-deficit/hyperactivity symptomsSwedish adult twinsNon-shared environmental influencesPopulation-representative sampleLarge population-representative sampleSymptomsSpecific non-shared environmental influencesEnvironmental influencesFamilial associationSymptom subtypesEpidemiological sampleHyperactivity symptomsHyperactivityFamilial transmissionDisordersEtiological influencesLiability factorsFamily studiesGenetic liability
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 differences
2010
Streptococcal Upper Respiratory Tract Infections and Exacerbations of Tic and Obsessive-Compulsive Symptoms: A Prospective Longitudinal Study
Leckman JF, King RA, Gilbert DL, Coffey BJ, Singer HS, Dure LS, Grantz H, Katsovich L, Lin H, Lombroso PJ, Kawikova I, Johnson DR, Kurlan RM, Kaplan EL. Streptococcal Upper Respiratory Tract Infections and Exacerbations of Tic and Obsessive-Compulsive Symptoms: A Prospective Longitudinal Study. Journal Of The American Academy Of Child & Adolescent Psychiatry 2010, 50: 108-118.e3. PMID: 21241948, PMCID: PMC3024577, DOI: 10.1016/j.jaac.2010.10.011.Peer-Reviewed Original ResearchConceptsExacerbation of ticsGABHS infectionStreptococcal infectionSymptom exacerbationStreptococcal upper respiratory tract infectionPediatric autoimmune neuropsychiatric disordersUpper respiratory tract infectionObsessive-compulsive symptomsAutoimmune neuropsychiatric disordersHemolytic streptococcal infectionRespiratory tract infectionsThroat swab cultureLongitudinal studyProspective longitudinal studyPANDAS subjectsClinical exacerbationStreptococcal antibodiesTract infectionsClinical symptomsGABHS infectionsGroup of childrenLaboratory valuesSwab culturesClinical conditionsClinical evaluators
2005
Caudate volumes in childhood predict symptom severity in adults with Tourette syndrome
Bloch MH, Leckman JF, Zhu H, Peterson BS. Caudate volumes in childhood predict symptom severity in adults with Tourette syndrome. Neurology 2005, 65: 1253-1258. PMID: 16247053, PMCID: PMC2367161, DOI: 10.1212/01.wnl.0000180957.98702.69.Peer-Reviewed Original ResearchConceptsSeverity of ticsBasal ganglia volumesCaudate nucleus volumeTourette syndromeObsessive-compulsive symptomsGanglia volumesEarly adulthoodObsessive-compulsive disorderTic symptomsCaudate nucleusCaudate volumeCross-sectional imaging studiesThalamo-cortical circuitsNucleus volumeSeverity of symptomsAge 16 yearsProspective longitudinal studyAge 14 yearsClinical statusClinical assessmentClinical measuresMorphologic disturbancesMRI scansSymptomsImaging studies
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
Obsessive-compulsive disorders in children. Subtypes of OCD and their relation to infection with group A streptococci.
Thomsen PH, Leckman J. Obsessive-compulsive disorders in children. Subtypes of OCD and their relation to infection with group A streptococci. Ugeskrift For Laeger 2002, 164: 3763-7. PMID: 12362609.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderSubtype of OCDBeta-haemolytic streptococciBody dysmorphic disorderAdult onsetSudden onsetNeurological abnormalitiesClinical consequencesPenicillin treatmentTourette syndromeSpecific subtypesObsessive-compulsive symptomsSuch disordersSubtypesDysmorphic disorderDisordersSyndromeInfectionDevelopmental disordersMore boysPresent reviewOnsetStreptococciRemissionRelapse
2000
The Psychiatric Symptoms of Rheumatic Fever
Mercadante MT, Busatto GF, Lombroso PJ, Prado L, Rosário-Campos MC, do Valle R, Marques-Dias MJ, Kiss MH, Leckman JF, Miguel EC. The Psychiatric Symptoms of Rheumatic Fever. American Journal Of Psychiatry 2000, 157: 2036-2038. PMID: 11097972, DOI: 10.1176/appi.ajp.157.12.2036.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderRheumatic feverSydenham's choreaTic disordersHigh riskComparison groupFever groupMajor depressive disorderDeficit hyperactivity disorderObsessive-compulsive disorderDepressive disorderRisk factorsPsychiatric symptomsPsychiatric disordersChoreaFeverNeuropsychiatric disordersObsessive-compulsive symptomsRating ScaleHyperactivity disorderSymptomsDisordersADHD symptomsChildrenSemistructured interviews
1997
Fluoxetine Has No Marked Effect on Tic Symptoms in Patients with Tourette's Syndrome: A Double-Blind Placebo-Controlled Study
Scahill L, Riddle MA, King RA, Hardin MT, Rasmusson A, Makuch RW, Leckman JF. Fluoxetine Has No Marked Effect on Tic Symptoms in Patients with Tourette's Syndrome: A Double-Blind Placebo-Controlled Study. Journal Of Child And Adolescent Psychopharmacology 1997, 7: 75-85. PMID: 9334893, DOI: 10.1089/cap.1997.7.75.Peer-Reviewed Original ResearchConceptsTourette syndromeObsessive-compulsive symptomsObsessive-compulsive disorderPlacebo-controlled crossover trialTreatment of ticsWeeks of treatmentEfficacy of fluoxetineFluoxetine monotherapyFluoxetine treatmentCrossover trialObsessive-compulsive featuresAdditional subjectsFluoxetineSymptomsSignificant reductionSyndromeTreatmentSubjectsCrossover analysisMonotherapyPatientsMarked effectTrialsWeeks
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
Severe disturbances in speech, swallowing, and gait following stereotactic infrathalamic lesions in Gilles de la Tourette's syndrome.
Leckman JF, de Lotbinière A, Marek K, Gracco C, Scahill L, Cohen DJ. Severe disturbances in speech, swallowing, and gait following stereotactic infrathalamic lesions in Gilles de la Tourette's syndrome. Neurology 1993, 43: 890-4. PMID: 8492943, DOI: 10.1212/wnl.43.5.890.Peer-Reviewed Original ResearchConceptsGilles de la Tourette's syndromeLa Tourette's syndromeLow-density areasMotor ticsTourette syndromeLast surgical procedureSevere gait disturbanceAnterior cingulate gyrusBilateral anterior cingulotomyGait disturbanceNeurologic deficitsObsessive-compulsive disorderSwallowing disordersAnterior cingulotomyPhonic ticsPostural instabilitySurgical proceduresCingulate gyrusObsessive-compulsive symptomsSyndromeNeurosurgical proceduresPatient's speechPatientsLesionsSecond procedure