2009
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
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
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 isoformDecreased 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 InfectionsTic DisordersT-LymphocytesTourette 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