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
2006
Decreased Numbers of Regulatory T Cells Suggest Impaired Immune Tolerance in Children with Tourette Syndrome: A Preliminary Study
Kawikova I, Leckman JF, Kronig H, Katsovich L, Bessen DE, Ghebremichael M, Bothwell AL. Decreased Numbers of Regulatory T Cells Suggest Impaired Immune Tolerance in Children with Tourette Syndrome: A Preliminary Study. Biological Psychiatry 2006, 61: 273-278. PMID: 16996487, DOI: 10.1016/j.biopsych.2006.06.012.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAge of OnsetAntigens, CDAntigens, Differentiation, T-LymphocyteAutoantigensBlood Cell CountCD4 Lymphocyte CountCD8-Positive T-LymphocytesChildData Interpretation, StatisticalFemaleFlow CytometryHumansImmune ToleranceInterleukin-2 Receptor alpha SubunitLectins, C-TypeLymphocyte CountMaleStreptococcal InfectionsT-LymphocytesTic DisordersTourette SyndromeConceptsT reg cellsRegulatory T cellsReg cellsTourette syndromeT cellsTS patientsFluorescence-activated cell sortingHealthy age-matched control childrenHealthy age-matched control subjectsT reg cell numbersBeta-hemolytic streptococcal infectionAge-matched control subjectsHost T-cell immunityPathogenesis of TSHemolytic streptococcal infectionT cell immunitySignificant decreaseAge-matched control childrenAutoimmune inflammationCell immunityStreptococcal infectionAutoreactive lymphocytesImmune toleranceAutoimmune responsePeripheral blood
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
2003
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
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