2020
Antibodies From Children With PANDAS Bind Specifically to Striatal Cholinergic Interneurons and Alter Their Activity
Xu J, Liu RJ, Fahey S, Frick L, Leckman J, Vaccarino F, Duman RS, Williams K, Swedo S, Pittenger C. Antibodies From Children With PANDAS Bind Specifically to Striatal Cholinergic Interneurons and Alter Their Activity. American Journal Of Psychiatry 2020, 178: 48-64. PMID: 32539528, PMCID: PMC8573771, DOI: 10.1176/appi.ajp.2020.19070698.Peer-Reviewed Original ResearchConceptsStriatal cholinergic interneuronsCholinergic interneuronsMouse brain slicesObsessive-compulsive disorderControl subjectsBrain slicesPediatric autoimmune neuropsychiatric disordersIntravenous immunoglobulin treatmentAutoimmune neuropsychiatric disordersAcute mouse brain slicesParvalbumin-expressing GABAergic interneuronsPediatric obsessive-compulsive disorderBrain antigensImmunoglobulin treatmentBaseline serumStreptococcal infectionCritical cellular targetsSymptom improvementGABAergic interneuronsInduced autoimmunityIgG antibodiesMouse slicesIndependent cohortBehavioral pathologyNeuron types
2011
Involvement of immunologic and biochemical mechanisms in the pathogenesis of Tourette’s syndrome
Landau YE, Steinberg T, Richmand B, Leckman JF, Apter A. Involvement of immunologic and biochemical mechanisms in the pathogenesis of Tourette’s syndrome. Journal Of Neural Transmission 2011, 119: 621-626. PMID: 22139323, PMCID: PMC3936959, DOI: 10.1007/s00702-011-0739-x.Peer-Reviewed Original ResearchConceptsTourette syndrome groupTourette syndromeSyndrome groupHealthy age-matched control subjectsTertiary pediatric medical centerAge-matched control subjectsIgG-4 levelsPediatric medical centerNovel therapeutic modalitiesNon-ceruloplasmin copperQuantitative immunoglobulinsImmunological markersControl subjectsHealthy childrenMedical recordsPhonic ticsMedical CenterTherapeutic modalitiesControl groupBiochemical markersSyndromeDemographic dataBiochemical indicesOxidative stressNeurodevelopmental disorders
2010
Elevated expression of MCP-1, IL-2 and PTPR-N in basal ganglia of Tourette syndrome cases
Morer A, Chae W, Henegariu O, Bothwell AL, Leckman JF, Kawikova I. Elevated expression of MCP-1, IL-2 and PTPR-N in basal ganglia of Tourette syndrome cases. Brain Behavior And Immunity 2010, 24: 1069-1073. PMID: 20193755, DOI: 10.1016/j.bbi.2010.02.007.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAutopsyBasal GangliaChemokine CCL2FemaleHumansInterferon-gammaInterleukin-1betaInterleukin-2Leukocyte Common AntigensMaleMiddle AgedPolymerase Chain ReactionReceptor-Like Protein Tyrosine Phosphatases, Class 2Receptor-Like Protein Tyrosine Phosphatases, Class 8RecoverinRNATourette SyndromeConceptsMCP-1IL-2Tourette syndromePost-mortem specimenBasal gangliaElevated expressionPost-infectious autoimmunityAdult TS patientsChronic inflammatory processEvidence of inflammationBasal ganglia areaInterleukin-1 βCentral nervous systemChemotactic factor-1TS casesReverse transcription-polymerase chain reaction analysisTranscription-polymerase chain reaction analysisReal-time reverse transcription-polymerase chain reaction analysisBrain tissue sectionsInflammatory factorsControl subjectsGanglia areaInflammatory processInterleukin-2TS patients
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 assayIgAChoreaSyndromeAntigenStreptococcal Upper Respiratory Tract Infections and Psychosocial Stress Predict Future Tic and Obsessive-Compulsive Symptom Severity in Children and Adolescents with Tourette Syndrome and Obsessive-Compulsive Disorder
Lin H, Williams KA, Katsovich L, Findley DB, Grantz H, Lombroso PJ, King RA, Bessen DE, Johnson D, Kaplan EL, Landeros-Weisenberger A, Zhang H, Leckman JF. Streptococcal Upper Respiratory Tract Infections and Psychosocial Stress Predict Future Tic and Obsessive-Compulsive Symptom Severity in Children and Adolescents with Tourette Syndrome and Obsessive-Compulsive Disorder. Biological Psychiatry 2009, 67: 684-691. PMID: 19833320, PMCID: PMC2843763, DOI: 10.1016/j.biopsych.2009.08.020.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAnti-Bacterial AgentsAttention Deficit Disorder with HyperactivityChildDepressive DisorderFemaleForecastingHumansLife Change EventsMaleObsessive-Compulsive DisorderPredictive Value of TestsProspective StudiesPsychologyRespiratory Tract InfectionsSeverity of Illness IndexStreptococcal InfectionsTicsTourette SyndromeConceptsDepressive symptom severityObsessive-compulsive disorderGABHS infectionPsychosocial stressTourette syndromeSymptom severityControl subjectsStreptococcal upper respiratory tract infectionUpper respiratory tract infectionBeta-hemolytic streptococcal infectionCurrent psychosocial stressRespiratory tract infectionsHealthy control subjectsProspective longitudinal studyEarly-onset obsessive-compulsive disorderMinority of childrenOC symptom severityTract infectionsStreptococcal infectionGABHS infectionsObsessive-compulsive symptom severityClinical ratingsNew infectionsClinical ratersControl status
2008
Brain Areas Coactivating with Motor Cortex During Chronic Motor Tics and Intentional Movements
Hampson M, Tokoglu F, King RA, Constable RT, Leckman JF. Brain Areas Coactivating with Motor Cortex During Chronic Motor Tics and Intentional Movements. Biological Psychiatry 2008, 65: 594-599. PMID: 19111281, PMCID: PMC2679868, DOI: 10.1016/j.biopsych.2008.11.012.Peer-Reviewed Original ResearchConceptsMotor cortexSupplementary motor areaControl subjectsBrain areasMotor ticsTic disordersTic movementsMotor areaTic-like movementsHealthy control subjectsChronic tic disorderNormal control subjectsChronic motor ticsNovel intervention strategiesFunctional neuroimaging studiesTic executionSevere ticsIntentional movementPatient's ticsMotor regionsPremonitory urgesBrain activity patternsAdult subjectsTic generationCortex
2006
Psychosocial stress predicts future symptom severities in children and adolescents with Tourette syndrome and/or obsessive‐compulsive disorder
Lin H, Katsovich L, Ghebremichael M, Findley DB, Grantz H, Lombroso PJ, King RA, Zhang H, Leckman JF. Psychosocial stress predicts future symptom severities in children and adolescents with Tourette syndrome and/or obsessive‐compulsive disorder. Journal Of Child Psychology And Psychiatry 2006, 48: 157-166. PMID: 17300554, PMCID: PMC3073143, DOI: 10.1111/j.1469-7610.2006.01687.x.Peer-Reviewed Original ResearchConceptsDepressive symptom severityFuture depressive symptomsHealthy control subjectsObsessive-compulsive disorderDepressive symptomsPsychosocial stressTourette syndromeSymptom severityControl subjectsLong-term contextual threatSeverity of ticsProspective longitudinal studyChronological ageIndependent predictorsOC symptomsTic severityOC symptom severityPsychosocial adversitySymptomsFuture symptom severityClinician ratingsSeverityParental reportsSignificant predictorsLongitudinal study
2005
Increased serum levels of interleukin-12 and tumor necrosis factor-alpha in Tourette’s syndrome
Leckman JF, Katsovich L, Kawikova I, Lin H, Zhang H, Krönig H, Morshed S, Parveen S, Grantz H, Lombroso PJ, King RA. Increased serum levels of interleukin-12 and tumor necrosis factor-alpha in Tourette’s syndrome. Biological Psychiatry 2005, 57: 667-673. PMID: 15780855, DOI: 10.1016/j.biopsych.2004.12.004.Peer-Reviewed Original ResearchConceptsEarly-onset obsessive-compulsive disorderObsessive-compulsive disorderSymptom exacerbationInterleukin-12Control subjectsImmune responseTourette syndromeTumor necrosis factor-alpha concentrationsNecrosis factor-alpha concentrationsAge-matched control subjectsInvolvement of innateLocal cytokine synthesisT cell immunityHumoral immune responseCentral nervous systemInnate immune responseLongitudinal studyProspective longitudinal studyT cell activationCell immunitySerum levelsPediatric populationCommon infectionsSerum concentrationsInflammatory process
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
2003
Basal Ganglia Volumes in Patients With Gilles de la Tourette Syndrome
Peterson BS, Thomas P, Kane MJ, Scahill L, Zhang H, Bronen R, King RA, Leckman JF, Staib L. Basal Ganglia Volumes in Patients With Gilles de la Tourette Syndrome. JAMA Psychiatry 2003, 60: 415-424. PMID: 12695320, DOI: 10.1001/archpsyc.60.4.415.Peer-Reviewed Original ResearchConceptsBasal ganglia volumesBasal gangliaCaudate nucleus volumeTourette syndromeGanglia volumesObsessive-compulsive disorderLenticular nucleus volumesTic symptomsNucleus volumeGilles dePathophysiology of TSPrior neuroleptic exposureHealthy control subjectsSeverity of ticsComorbid obsessive-compulsive disorderGreat clinical relevanceAttention-deficit/hyperactivity disorder (ADHD) symptomsHyperactivity disorder symptomsRepeated-measures analysisNeuroleptic exposureControl subjectsFunctional disturbancesTrait abnormalityClinical relevanceGangliaDevelopment of the Yale Children’s Global Stress Index (YCGSI) and Its Application in Children and Adolescents With Tourette’s Syndrome and Obsessive-Compulsive Disorder
FINDLEY DB, LECKMAN JF, KATSOVICH L, LIN H, ZHANG H, GRANTZ H, OTKA J, LOMBROSO PJ, KING RA. Development of the Yale Children’s Global Stress Index (YCGSI) and Its Application in Children and Adolescents With Tourette’s Syndrome and Obsessive-Compulsive Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2003, 42: 450-457. PMID: 12649632, DOI: 10.1097/01.chi.0000046816.95464.ef.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderTourette syndromeDaily Life Stressors ScalePsychosocial stressAge-matched control subjectsClinician ratingsClinical rating instrumentGlobal clinician ratingsTime pointsGlobal Stress IndexCross-sectional ratingsEarly-onset obsessive-compulsive disorderPsychometric propertiesControl subjectsClinical severityObsessive-compulsive symptom severityStudy of childrenAcceptable psychometric propertiesStress indexSymptom severitySyndromePossible differential contributionInterrater reliabilityStressor ScaleDisorders
1980
Intravenous chlorimipramine affects REM cycle in patients with excessive daytime sleepiness and control subjects.
Leckman JF, Gillin JC, Sitaram N, Duncan W, Wyatt RJ. Intravenous chlorimipramine affects REM cycle in patients with excessive daytime sleepiness and control subjects. Communications In Psychopharmacology 1980, 4: 35-40. PMID: 7398240.Peer-Reviewed Original Research