2022
Tourette's Syndrome: When Habit-Forming Systems Form Habits of Their Own?
Leckman J, Riddlet M. Tourette's Syndrome: When Habit-Forming Systems Form Habits of Their Own? 2022, 153-158. DOI: 10.4324/9780203822937-15.Peer-Reviewed Original Research
2020
An examination of the relationship between regulatory T cells and symptom flare-ups in children and adolescents diagnosed with chronic tic disorder and Tourette syndrome
Yildirim Z, Karabekiroglu K, Yildiran A, Celiksoy MH, Artukoglu B, Baykal S, Babadağı Z, Leckman J. An examination of the relationship between regulatory T cells and symptom flare-ups in children and adolescents diagnosed with chronic tic disorder and Tourette syndrome. Nordic Journal Of Psychiatry 2020, 75: 18-24. PMID: 32580599, DOI: 10.1080/08039488.2020.1779808.Peer-Reviewed Original ResearchConceptsTS/chronic tic disorderChronic tic disorderSex-matched healthy controlsModerate-severe groupHealthy controlsLymphocyte countTourette syndromeLymphocyte percentagePatient groupTic disordersHC groupControl groupT-helper lymphocyte countYale Global Tic Severity ScaleT helper (TH) (CD4) numberT-lymphocyte countsT lymphocyte numbersT-lymphocyte percentageRegulatory T cellsT cell valuesTic Severity ScaleTreg percentageChildhood-onset neurodevelopmental disorderLymphocyte numbersPhonic tics
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
Gilles de la Tourette syndrome
Robertson MM, Eapen V, Singer HS, Martino D, Scharf JM, Paschou P, Roessner V, Woods DW, Hariz M, Mathews CA, Črnčec R, Leckman JF. Gilles de la Tourette syndrome. Nature Reviews Disease Primers 2017, 3: 16097. PMID: 28150698, DOI: 10.1038/nrdp.2016.97.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderFunctional brain anomaliesObsessive-compulsive disorderChildhood-onset neurodevelopmental disorderPathogenesis of GTSHyperactivity disorderMultiple common risk variantsNeurobiological dataConsiderable social stigmaNeural circuit levelTourette syndromeBehavioral methodsGilles deNeurodevelopmental disordersYears of ageFuture researchSocial stigmaBrain anomaliesPhonic ticsNeuropsychiatric disordersTargeted interventionsClinical phenotypeDisordersFunctional neurosurgeryDe novo mutations
2012
Clinical assessment of Tourette syndrome and tic disorders
Cohen SC, Leckman JF, Bloch MH. Clinical assessment of Tourette syndrome and tic disorders. Neuroscience & Biobehavioral Reviews 2012, 37: 997-1007. PMID: 23206664, PMCID: PMC3674220, DOI: 10.1016/j.neubiorev.2012.11.013.Peer-Reviewed Original ResearchConceptsTourette syndromeAttention deficit hyperactivity disorderObsessive-compulsive disorderTreatment of TSImpaired sensorimotor gatingPercent of childrenImpulse control disordersDeficit hyperactivity disorderSomatic hypersensitivityTic symptomsPhonic ticsPurposeless movementsTic disordersClinical assessmentSensorimotor gatingControl disordersProper diagnosisMuscle groupsPremonitory urgesNeuropsychiatric disordersHyperactivity disorderDisordersAppropriate evaluationSyndromeSensory phenomena
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
Pathological laughter in Gilles de la Tourette syndrome: An unusual phonic tic
Cavanna AE, Ali F, Leckman JF, Robertson MM. Pathological laughter in Gilles de la Tourette syndrome: An unusual phonic tic. Movement Disorders 2010, 25: 2233-2239. PMID: 20683924, DOI: 10.1002/mds.23216.Peer-Reviewed Original ResearchConceptsPathological laughterPhonic ticsTourette syndromeGilles de la Tourette's syndromeLa Tourette's syndromeCase seriesPathophysiological mechanismsNeurological conditionsLimbic networkTic phenomenologyPremonitory urgesSignificant impairmentGilles deInappropriate outburstsPatientsSyndromeSymptomsSubjectsInappropriate behaviorImpairment
2006
Adulthood Outcome of Tic and Obsessive-Compulsive Symptom Severity in Children With Tourette Syndrome
Bloch MH, Peterson BS, Scahill L, Otka J, Katsovich L, Zhang H, Leckman JF. Adulthood Outcome of Tic and Obsessive-Compulsive Symptom Severity in Children With Tourette Syndrome. JAMA Pediatrics 2006, 160: 65-69. PMID: 16389213, PMCID: PMC2291298, DOI: 10.1001/archpedi.160.1.65.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdrenergic alpha-AgonistsAdultAntipsychotic AgentsAttention Deficit Disorder with HyperactivityBipolar DisorderChildDepressive DisorderFemaleFollow-Up StudiesHumansIntelligence TestsMaleObsessive-Compulsive DisorderProspective StudiesSchizophreniaSelective Serotonin Reuptake InhibitorsSeverity of Illness IndexTic DisordersTourette SyndromeConceptsTic symptomsTourette syndromeTic severitySymptom severityObsessive-compulsive disorderBaseline clinical measurementsChildhood-onset neuropsychiatric disorderOCD symptomsPercent of patientsProspective cohort studyPercent of subjectsOutpatient specialty clinicsThird of childrenThird of adultsAge 14 yearsStructured clinical evaluationCohort studyClinical courseComplete resolutionClinical evaluationPhonic ticsSpecialty clinicFollow-up interviewObsessive-compulsive symptom severityAverage age
2002
Tourette’s syndrome and other tic disorders
King R, Scahill L, Lombroso P, Leckman J. Tourette’s syndrome and other tic disorders. 2002, 526-542. DOI: 10.1093/oso/9780195141733.003.0040.Peer-Reviewed Original Research
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 procedurePremonitory 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
1992
Sensory phenomena associated with Gilles de la Tourette's syndrome.
Cohen AJ, Leckman JF. Sensory phenomena associated with Gilles de la Tourette's syndrome. The Journal Of Clinical Psychiatry 1992, 53: 319-23. PMID: 1517194.Peer-Reviewed Original ResearchConceptsPremonitory urgesSyndrome AssociationPatient listsSensory phenomenaGilles de la Tourette's syndromeTourette Syndrome AssociationLa Tourette's syndromePhonic ticsVocal ticsTourette syndromeTS sufferersSyndromeVisual stimuliSubjectsSensitizationSufferersParticipantsTelephonePatientsUrgeCliniciansStudy
1985
Short- and long-term treatment of Tourette's syndrome with clonidine: a clinical perspective.
Leckman J, Detlor J, Harcherik D, Ort S, Shaywitz B, Cohen D. Short- and long-term treatment of Tourette's syndrome with clonidine: a clinical perspective. Neurology 1985, 35: 343-51. PMID: 3883235, DOI: 10.1212/wnl.35.3.343.Peer-Reviewed Original ResearchConceptsTourette syndromeGilles de la Tourette's syndromePlacebo-controlled trialDouble-blind studyLong-term treatmentSerious side effectsLa Tourette's syndromeUnequivocal respondersPhonic ticsClonidineSide effectsSyndromeDrug efficacyEquivocal responseClinical perspectivePatientsEfficacyBehavior problemsSignificant improvementRespondersTrialsWeeks