2021
Lower Ventromedial Prefrontal Cortex Glutamate Levels in Patients With Obsessive–Compulsive Disorder
Batistuzzo M, Sottili B, Shavitt R, Lopes A, Cappi C, de Mathis M, Pastorello B, Diniz J, Silva R, Miguel E, Hoexter M, Otaduy M. Lower Ventromedial Prefrontal Cortex Glutamate Levels in Patients With Obsessive–Compulsive Disorder. Frontiers In Psychiatry 2021, 12: 668304. PMID: 34168581, PMCID: PMC8218991, DOI: 10.3389/fpsyt.2021.668304.Peer-Reviewed Original ResearchGamma-aminobutyric acidObsessive-compulsive disorderClinical symptomsHealthy controlsExcitatory/inhibitory imbalancePathophysiology of OCDGlu/Gln ratioH-MRS studiesGray matter fractionGlu/CrCortico-striatal circuitsGlutamate levelsExcitatory neurotransmissionNeurochemical imbalanceInhibitory imbalanceStriatal regionsUnderlying neurochemistryN-acetylaspartatePatientsKey neurotransmitterH-MRSVentromedial prefrontal cortexSecondary analysisAbnormal levelsPrefrontal cortex
2020
Toward identifying reproducible brain signatures of obsessive-compulsive profiles: rationale and methods for a new global initiative
Simpson H, van den Heuvel O, Miguel E, Reddy Y, Stein D, Lewis-Fernández R, Shavitt R, Lochner C, Pouwels P, Narayanawamy J, Venkatasubramanian G, Hezel D, Vriend C, Batistuzzo M, Hoexter M, de Joode N, Costa D, de Mathis M, Sheshachala K, Narayan M, van Balkom A, Batelaan N, Venkataram S, Cherian A, Marincowitz C, Pannekoek N, Stovezky Y, Mare K, Liu F, Otaduy M, Pastorello B, Rao R, Katechis M, Van Meter P, Wall M. Toward identifying reproducible brain signatures of obsessive-compulsive profiles: rationale and methods for a new global initiative. BMC Psychiatry 2020, 20: 68. PMID: 32059696, PMCID: PMC7023814, DOI: 10.1186/s12888-020-2439-2.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingCircuit abnormalitiesNew global initiativesBrain signaturesGlobal InitiativeHealthy control subjectsMedication-free adultsMultiple brain circuitsMedication-free subjectsBackgroundObsessive–compulsive disorderClinical profileClinical symptomsControl subjectsClinical evaluationHealthy controlsLeading causeGlobal disabilityLifetime prevalenceResonance imagingNeurocognitive assessmentBrain circuitsImaging signaturesFunctional connectivityBrain-behavior associationsDisease dimensions