2019
Understanding gamma ventral capsulotomy: Potential implications of diffusion tensor image tractography on target selectivity
de Oliveira Santos B, Gorgulho A, Saraiva C, Lopes A, Gomes J, Pássaro A, Hoexter M, Miguel E, De Salles A. Understanding gamma ventral capsulotomy: Potential implications of diffusion tensor image tractography on target selectivity. Surgical Neurology International 2019, 10: 136. PMID: 31528471, PMCID: PMC6744751, DOI: 10.25259/sni-65-2019.Peer-Reviewed Original ResearchDiffusion tensor image tractographyMorbid obesity patientsOCD patientsObesity patientsInternal capsuleOrbitofrontal cortexAnterior internal capsuleGamma ventral capsulotomyMedial orbitofrontal cortexFunctional stereotactic proceduresFunctional patientsMorbid obesityMean ageTract fibersAnterior limbCerebral hemispheresPatientsFiber tractsDisorder individualsStereotactic proceduresDeep brain stimulation implantsObesityTractography parametersExact topographyTractographyCaudate volume differences among treatment responders, non-responders and controls in children with obsessive–compulsive disorder
Vattimo E, Barros V, Requena G, Sato J, Fatori D, Miguel E, Shavitt R, Hoexter M, Batistuzzo M. Caudate volume differences among treatment responders, non-responders and controls in children with obsessive–compulsive disorder. European Child & Adolescent Psychiatry 2019, 28: 1607-1617. PMID: 30972581, DOI: 10.1007/s00787-019-01320-w.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderGroup cognitive behavioral therapyPediatric obsessive-compulsive disorderRight caudateTreatment responseCognitive behavioral therapyCaudate nucleusPossible neural substrateTreatment respondersGM volumeStructural magnetic resonance imagingNeural substratesPrevious evidenceNeurobiological underpinningsOrbitofrontal cortexAge-matched controlsTotal GM volumeMagnetic resonance imagingBrain structuresResonance imagingChildrenRespondersBonferroni correctionCaudatePatientsSU72 TRANSCRIPTOME STUDY IN OBSESSIVE COMPULSIVE DISORDERS
Lisboa B, Tahira A, Sant'Anna A, Oliveira K, Miguel E, Hoexter M, Farfel J, Brentani H. SU72 TRANSCRIPTOME STUDY IN OBSESSIVE COMPULSIVE DISORDERS. European Neuropsychopharmacology 2019, 29: s927. DOI: 10.1016/j.euroneuro.2017.08.261.Peer-Reviewed Original ResearchObsessive-compulsive disorderNucleus accumbensSubgenual cingulate gyrusCortico-striatal circuitryOrbitofrontal cortexAffective circuitryCingulate gyrusCaudate nucleusBrain areasCognitive circuitryBrazilian Aging Brain Study GroupCompulsive disorderEnsheathment of neuronsEnrichment analysisBackground Obsessive-compulsive disorderDrug metabolic processFunctional neuroimaging studiesCortico-striatal loopsDopaminergic synapsesBrain BankThalamic circuitryGene expressionStudy groupNeurological system processPsychiatric disorders
2018
Associations between children’s family environment, spontaneous brain oscillations, and emotional and behavioral problems
Sato J, Biazoli C, Salum G, Gadelha A, Crossley N, Vieira G, Zugman A, Picon F, Pan P, Hoexter M, Amaro E, Anés M, Moura L, Del’Aquilla M, Mcguire P, Rohde L, Miguel E, Bressan R, Jackowski A. Associations between children’s family environment, spontaneous brain oscillations, and emotional and behavioral problems. European Child & Adolescent Psychiatry 2018, 28: 835-845. PMID: 30392120, DOI: 10.1007/s00787-018-1240-y.Peer-Reviewed Original ResearchConceptsFamily environmentMental health outcomesFamily coherenceEmotional problemsOrbitofrontal cortexTemporal poleResting-state fMRI dataLeft temporal poleSpontaneous brain oscillationsChild's family environmentRight orbitofrontal cortexOscillatory neural activityHealth outcomesBrain oscillationsBehavioral problemsNeural activityFMRI dataFMRI metricsBrain areasLow-frequency fluctuationsFractional amplitudeLower incidenceSpontaneous activityHigh incidenceExploratory studyLayer-specific reduced neuronal density in the orbitofrontal cortex of older adults with obsessive–compulsive disorder
de Oliveira K, Grinberg L, Hoexter M, Brentani H, Suemoto C, Nery F, Lima L, Alho A, Farfel J, Ferretti-Rebustini R, Leite R, Moretto A, da Silva A, Lafer B, Miguel E, Nitrini R, Jacob-Filho W, Heinsen H, Pasqualucci C. Layer-specific reduced neuronal density in the orbitofrontal cortex of older adults with obsessive–compulsive disorder. Brain Structure And Function 2018, 224: 191-203. PMID: 30298291, DOI: 10.1007/s00429-018-1752-8.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderMedial orbitofrontalOrbitofrontal cortexNeuronal densityOCD casesLower neuron densityCortical-subcortical circuitryOFC abnormalitiesEfferent targetsNeuron densityClinical evaluationAnterolateral areaControl groupCognitive impairmentAutopsy serviceOrbitofrontal regionsAnteromedialOlder adultsControl casesOFC areasCortexConsistent evidenceDisordersCellular levelTotal
2015
Reduced Prefrontal Activation in Pediatric Patients With Obsessive-Compulsive Disorder During Verbal Episodic Memory Encoding
Batistuzzo M, Balardin J, da Graça Morais Martin M, Hoexter M, Bernardes E, Borcato S, de Marco e Souza M, Querido C, Morais R, de Alvarenga P, Lopes A, Shavitt R, Savage C, Amaro E, Miguel E, Polanczyk G, Miotto E. Reduced Prefrontal Activation in Pediatric Patients With Obsessive-Compulsive Disorder During Verbal Episodic Memory Encoding. Journal Of The American Academy Of Child & Adolescent Psychiatry 2015, 54: 849-858. PMID: 26407495, DOI: 10.1016/j.jaac.2015.06.020.Peer-Reviewed Original ResearchConceptsVerbal episodic memoryObsessive-compulsive disorderEpisodic memoryOrbitofrontal cortexPrefrontal cortexSemantic clusteringFunctional magnetic resonance imagingDorsomedial prefrontal cortexAltered brain activationDifferent neural mechanismsPathophysiology of OCDUnrelated wordsPrefrontal activationBrain activationWord listsExecutive dysfunctionNeural mechanismsTotal wordsCompulsive Scale scoresYale-Brown Obsessive Compulsive Scale scoresStrategy scoresStrategy applicationMemoryCortexKey regions
2012
Differential prefrontal gray matter correlates of treatment response to fluoxetine or cognitive-behavioral therapy in obsessive–compulsive disorder
Hoexter M, Dougherty D, Shavitt R, D'Alcante C, Duran F, Lopes A, Diniz J, Batistuzzo M, Evans K, Bressan R, Busatto G, Miguel E. Differential prefrontal gray matter correlates of treatment response to fluoxetine or cognitive-behavioral therapy in obsessive–compulsive disorder. European Neuropsychopharmacology 2012, 23: 569-580. PMID: 22841131, DOI: 10.1016/j.euroneuro.2012.06.014.Peer-Reviewed Original ResearchConceptsGray matter volumeMedial prefrontal cortexCognitive behavioral therapyObsessive-compulsive disorderTreatment responseTreatment-naïve OCD patientsTreatment groupsMagnetic resonance imagingMatter volumeOrbitofrontal cortexLateral orbitofrontal cortexSymptom improvementOCD patientsFluoxetine treatment groupTrial of fluoxetineSerotonin reuptake inhibitorsAdequate therapeutic approachStructural magnetic resonance imagingCBT treatment groupRight medial prefrontal cortexGroup-based cognitive behavioral therapyRegional gray matter volumeStructural MRI scansDistinct brain regionsYale-Brown Obsessive
2008
Gamma ventral capsulotomy for treatment of resistant obsessive-compulsive disorder: A structural MRI pilot prospective study
Cecconi J, Lopes A, de Souza Duran F, Santos L, Hoexter M, Gentil A, Canteras M, de Castro C, Norén G, Greenberg B, Rauch S, Busatto G, Miguel E. Gamma ventral capsulotomy for treatment of resistant obsessive-compulsive disorder: A structural MRI pilot prospective study. Neuroscience Letters 2008, 447: 138-142. PMID: 18835422, DOI: 10.1016/j.neulet.2008.09.061.Peer-Reviewed Original ResearchConceptsGamma ventral capsulotomyObsessive-compulsive disorderRefractory obsessive-compulsive disorderResistant obsessive-compulsive disorderRefractory OCD patientsYear of radiosurgeryPilot prospective studyVoxel-based morphometry methodRegional structural abnormalitiesGray matter volumeRight inferior frontal gyrusInferior orbitofrontal cortexPostoperative increaseProspective studyInferior frontal gyrusMagnetic resonance imaging dataMatter volumeMRI scansNeurobiological changesStructural abnormalitiesOrbitofrontal cortexCapsulotomyPatientsOCD patientsFrontal gyrus
2000
A voxel-based investigation of regional cerebral blood flow abnormalities in obsessive–compulsive disorder using single photon emission computed tomography (SPECT)
Busatto G, Zamignani D, Buchpiguel C, Garrido G, Glabus M, Rocha E, Maia A, Rosario-Campos M, Castro C, Furuie S, Gutierrez M, McGuire P, Miguel E. A voxel-based investigation of regional cerebral blood flow abnormalities in obsessive–compulsive disorder using single photon emission computed tomography (SPECT). Psychiatry Research 2000, 99: 15-27. PMID: 10891646, DOI: 10.1016/s0925-4927(00)00050-0.Peer-Reviewed Original ResearchConceptsAnterior cingulate cortexECD uptakeObsessive-compulsive disorderCingulate cortexLateral orbitofrontal cortexObsessive-compulsive symptomsOrbitofrontal cortexControl subjectsOCD patientsLeft dorsal anterior cingulate cortexRegional cerebral blood flow abnormalitiesImaging studiesCerebral blood flow abnormalitiesRight medial orbitofrontal cortexPatient samplesRegional cerebral blood flowPathophysiology of OCDRight lateral orbitofrontal cortexRCBF SPECT studiesHealthy control subjectsBlood flow abnormalitiesCerebral blood flowLarger patient samplesSmall patient sampleLeft lateral orbitofrontal cortex