2020
Higher volumes of hippocampal subfields in pediatric obsessive-compulsive disorder
Vattimo E, Dos Santos A, Hoexter M, Frudit P, Miguel E, Shavitt R, Batistuzzo M. Higher volumes of hippocampal subfields in pediatric obsessive-compulsive disorder. Psychiatry Research Neuroimaging 2020, 307: 111200. PMID: 33059948, DOI: 10.1016/j.pscychresns.2020.111200.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderHippocampal volumeTotal gray matter volumeRight whole hippocampusBilateral hippocampal headsLarger hippocampal volumesGray matter volumePediatric obsessive-compulsive disorderRight parasubiculumAdult patientsPediatric patientsHippocampal bodyAnatomic subregionsHippocampal headLimbic structuresHealthy controlsFreeSurfer softwareHippocampus volumeHippocampal subfieldsWhole hippocampusHippocampal cytoarchitectureEarly markerMatter volumePatientsSignificant larger volumes
2015
Multicenter Voxel-Based Morphometry Mega-Analysis of Structural Brain Scans in Obsessive-Compulsive Disorder
de Wit S, Alonso P, Schweren L, Mataix-Cols D, Lochner C, Menchón J, Stein D, Fouche J, Soriano-Mas C, Sato J, Hoexter M, Denys D, Nakamae T, Nishida S, Kwon J, Jang J, Busatto G, Cardoner N, Cath D, Fukui K, Jung W, Kim S, Miguel E, Narumoto J, Phillips M, Pujol J, Remijnse P, Sakai Y, Shin N, Yamada K, Veltman D, van den Heuvel O. Multicenter Voxel-Based Morphometry Mega-Analysis of Structural Brain Scans in Obsessive-Compulsive Disorder. FOCUS The Journal Of Lifelong Learning In Psychiatry 2015, 13: 204-212. DOI: 10.1176/appi.focus.130210.Peer-Reviewed Original ResearchHealthy comparison subjectsObsessive-compulsive disorderOCD patientsHealthy subjectsComparison subjectsMatter volumeGreater cerebellar gray matter volumeStructural T1-weighted MRI scansWhite matter brain volumesWhite matter volume differencesT1-weighted MRI scansWhite matter volumePrevious smaller studiesStructural brain scansGray matter volumeCerebellar gray matter volumeVoxel-based morphometryAdult OCD patientsAnterior cingulate cortexAltered neuroplasticityClinical variablesInferior frontal gyrusCognitive dysfunctionDorsomedial prefrontal cortexMRI scans
2014
Multicenter Voxel-Based Morphometry Mega-Analysis of Structural Brain Scans in Obsessive-Compulsive Disorder
de Wit S, Alonso P, Schweren L, Mataix-Cols D, Lochner C, Menchón J, Stein D, Fouche J, Soriano-Mas C, Sato J, Hoexter M, Denys D, Nakamae T, Nishida S, Kwon J, Jang J, Busatto G, Cardoner N, Cath D, Fukui K, Jung W, Kim S, Miguel E, Narumoto J, Phillips M, Pujol J, Remijnse P, Sakai Y, Shin N, Yamada K, Veltman D, van den Heuvel O. Multicenter Voxel-Based Morphometry Mega-Analysis of Structural Brain Scans in Obsessive-Compulsive Disorder. American Journal Of Psychiatry 2014, 171: 340-349. PMID: 24220667, DOI: 10.1176/appi.ajp.2013.13040574.Peer-Reviewed Original ResearchConceptsHealthy comparison subjectsObsessive-compulsive disorderOCD patientsHealthy subjectsComparison subjectsGreater cerebellar gray matter volumeMatter volumeStructural T1-weighted MRI scansWhite matter brain volumesWhite matter volume differencesT1-weighted MRI scansWhite matter volumePrevious smaller studiesStructural brain scansGray matter volumeVoxel-based morphometryAdult OCD patientsCerebellar gray matter volumeAnterior cingulate cortexAltered neuroplasticityClinical variablesInferior frontal gyrusCognitive dysfunctionDorsomedial prefrontal cortexTemporal cortex
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
2011
Gray Matter Volumes in Obsessive-Compulsive Disorder Before and After Fluoxetine or Cognitive-Behavior Therapy: A Randomized Clinical Trial
Hoexter M, de Souza Duran F, D'Alcante C, Dougherty D, Shavitt R, Lopes A, Diniz J, Deckersbach T, Batistuzzo M, Bressan R, Miguel E, Busatto G. Gray Matter Volumes in Obsessive-Compulsive Disorder Before and After Fluoxetine or Cognitive-Behavior Therapy: A Randomized Clinical Trial. Neuropsychopharmacology 2011, 37: 734-745. PMID: 22030709, PMCID: PMC3260985, DOI: 10.1038/npp.2011.250.Peer-Reviewed Original ResearchConceptsCognitive behavior therapyObsessive-compulsive disorderGray matter volumeLeft putamenClinical trialsOCD patientsGM volumeMatter volumeSignificant GM volume changesPathophysiology of OCDFluoxetine-treated patientsGM volume abnormalitiesMatched-healthy controlsTreatment-naive patientsFirst-line treatmentStructural brain abnormalitiesGM volume changesCBT-treated patientsGroup cognitive behavior therapySmaller GM volumeRegional brain volumesRegional brain morphologyAnterior cingulate cortexStructural magnetic resonanceRegional gray matter volume
2009
Association between symptom severity and internal capsule volume in obsessive-compulsive disorder
de Souza Duran F, Hoexter M, Valente A, Miguel E, Busatto G. Association between symptom severity and internal capsule volume in obsessive-compulsive disorder. Neuroscience Letters 2009, 452: 68-71. PMID: 19150484, DOI: 10.1016/j.neulet.2009.01.007.Peer-Reviewed Original ResearchConceptsWhite matter volumeObsessive-compulsive disorderMagnetic resonance imagingMatter volumeCingulum bundleWhite matter volume deficitsPathophysiology of OCDOCD patientsAsymptomatic control subjectsWhite matter reductionThalamic-cortical circuitWhite matter alterationsVoxel-based morphometryWhite matter tractsRegional white matter volumeSymptom severity ratingsInternal capsuleNeurosurgical treatmentSeverity scoreControl subjectsAnterior limbConnectivity dysfunctionT MRI scannerOCD severity scoresVolume deficits
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
2005
Regional Gray Matter Abnormalities in Obsessive-Compulsive Disorder: A Voxel-Based Morphometry Study
Valente A, Miguel E, Castro C, Amaro E, Duran F, Buchpiguel C, Chitnis X, McGuire P, Busatto G. Regional Gray Matter Abnormalities in Obsessive-Compulsive Disorder: A Voxel-Based Morphometry Study. Biological Psychiatry 2005, 58: 479-487. PMID: 15978549, DOI: 10.1016/j.biopsych.2005.04.021.Peer-Reviewed Original ResearchConceptsVoxel-based morphometryObsessive-compulsive disorderGray matterLeft anterior cingulate cortexOCD patientsOCD subjectsParietal associative cortexMagnetic resonance imaging studyStructural magnetic resonance imaging (MRI) studiesRegional gray matter abnormalitiesGray matter reductionsGray matter abnormalitiesResonance imaging studyGray matter volumeAnterior cingulate cortexWarrants further investigationTemporolimbic regionsMedial thalamusBrain abnormalitiesObsessive-compulsive symptom severityHealthy volunteersImplicating dysfunctionMatter volumeAssociative cortexMorphometry study