2021
An In-vivo 1H-MRS short-echo time technique at 7T: Quantification of metabolites in chronic multiple sclerosis and neuromyelitis optica brain lesions and normal appearing brain tissue
Tackley G, Kong Y, Minne R, Messina S, Winkler A, Cavey A, Everett R, DeLuca G, Weir A, Craner M, Tracey I, Palace J, Stagg C, Emir U. An In-vivo 1H-MRS short-echo time technique at 7T: Quantification of metabolites in chronic multiple sclerosis and neuromyelitis optica brain lesions and normal appearing brain tissue. NeuroImage 2021, 238: 118225. PMID: 34062267, PMCID: PMC7611458, DOI: 10.1016/j.neuroimage.2021.118225.Peer-Reviewed Original ResearchConceptsTotal N-acetylaspartateMultiple sclerosisN-acetylaspartateBrain lesionsPositive neuromyelitis optica spectrum disorderWhite matterNeuromyelitis optica spectrum disorderOptica spectrum disorderChronic multiple sclerosisPost-hoc testingBrain white matterDisease groupMRS methodologyMRS profilesMRS studiesReciprocal findingsNon-invasive quantificationBrain tissueLesionsMagnetic resonance spectroscopyMyo-inositolDistinct diseasesNormal tissuesCNS moleculesIn-Vivo
2016
Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia
Kochunov P, Ganjgahi H, Winkler A, Kelly S, Shukla D, Du X, Jahanshad N, Rowland L, Sampath H, Patel B, O'Donnell P, Xie Z, Paciga S, Schubert C, Chen J, Zhang G, Thompson P, Nichols T, Hong L. Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia. Human Brain Mapping 2016, 37: 4673-4688. PMID: 27477775, PMCID: PMC5118078, DOI: 10.1002/hbm.23336.Peer-Reviewed Original ResearchConceptsAge-related declineWhite matterSchizophrenia patientsFractional anisotropyFA valuesDiagnosis interactionFaster age-related declinePathophysiology of schizophreniaHum Brain MappEffect of diagnosisLower fractional anisotropyPatient-control differencesT Siemens MRI scannerBrain white matterClinical burdenRegional FA valuesPatientsAbnormal rateBrain connectivityTract developmentAdolescent maturationSpecific tractsRegional reductionDiagnosisSchizophrenia
2015
Striatal activity and reduced white matter increase frontal activity in youths with family histories of alcohol and other substance‐use disorders performing a go/no‐go task
Acheson A, Tagamets M, Winkler A, Rowland L, Mathias C, Wright S, Hong L, Kochunov P, Dougherty D. Striatal activity and reduced white matter increase frontal activity in youths with family histories of alcohol and other substance‐use disorders performing a go/no‐go task. Brain And Behavior 2015, 5: e00352. PMID: 26221573, PMCID: PMC4511289, DOI: 10.1002/brb3.352.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAspartic AcidBrain MappingChildCorpus StriatumExecutive FunctionFamilyFemaleGenetic Predisposition to DiseaseHumansInhibition, PsychologicalLongitudinal StudiesMagnetic Resonance ImagingMaleMotor CortexNeural PathwaysProton Magnetic Resonance SpectroscopyPsychomotor PerformanceSignal Processing, Computer-AssistedSubstance-Related DisordersWhite MatterConceptsSupplementary motor areaSubstance use disordersWhite matter integrityFamily historyFrontal white matter integrityStriatal activityDorsal striatumFrontal cortical activityCortical activitySMA activityFrontal cortical projectionsDrug use disordersDorsal striatal activitySuch family historyDorsal striatum activityCortical projectionsMotor areaElevated riskOngoing longitudinal studyUse disordersWhite matterDownstream projectionsGo/
2014
Assessment of whole brain white matter integrity in youths and young adults with a family history of substance‐use disorders
Acheson A, Wijtenburg S, Rowland L, Winkler A, Gaston F, Mathias C, Fox P, Lovallo W, Wright S, Hong L, Dougherty D, Kochunov P. Assessment of whole brain white matter integrity in youths and young adults with a family history of substance‐use disorders. Human Brain Mapping 2014, 35: 5401-5413. PMID: 24867528, PMCID: PMC4206569, DOI: 10.1002/hbm.22559.Peer-Reviewed Original ResearchConceptsSubstance use disordersLower FA valuesFamily historyUse disordersFA valuesCorona radiataWhole-brain white matter integrityYoung adultsFrontostriatal white matter tractsBrain white matter integrityFrontal white matterPosterior corona radiataAnterior corona radiataFractional anisotropy (FA) dataHigher radial diffusivitySuch family historyWhite matter tractsWhite matter integrityAge-related declineImpaired myelinationAxonal myelinationCorpus callosumGeneral populationWhite matterSignificant negative correlation
2012
Testing the Hypothesis of Accelerated Cerebral White Matter Aging in Schizophrenia and Major Depression
Kochunov P, Glahn DC, Rowland LM, Olvera RL, Winkler A, Yang YH, Sampath H, Carpenter WT, Duggirala R, Curran J, Blangero J, Hong LE. Testing the Hypothesis of Accelerated Cerebral White Matter Aging in Schizophrenia and Major Depression. Biological Psychiatry 2012, 73: 482-491. PMID: 23200529, PMCID: PMC3645491, DOI: 10.1016/j.biopsych.2012.10.002.Peer-Reviewed Original ResearchConceptsMajor depressive disorderMDD cohortAge-related declineFractional anisotropyWM tractsFA valuesAge interactionMain outcome measuresCerebral white matterPathophysiology of schizophreniaAverage fractional anisotropyWhite matter integrityCerebral WMMajor WM tractsMDD patientsDepressive disorderMajor depressionOutcome measuresFunctional declineSCZ patientsWhite matterCohortPeak myelinationPatientsWM FA values
2009
Analysis of Genetic Variability and Whole Genome Linkage of Whole-Brain, Subcortical, and Ependymal Hyperintense White Matter Volume
Kochunov P, Glahn D, Winkler A, Duggirala R, Olvera RL, Cole S, Dyer TD, Almasy L, Fox PT, Blangero J. Analysis of Genetic Variability and Whole Genome Linkage of Whole-Brain, Subcortical, and Ependymal Hyperintense White Matter Volume. Stroke 2009, 40: 3685-3690. PMID: 19834011, PMCID: PMC2787844, DOI: 10.1161/strokeaha.109.565390.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAgingBiomarkersBrain IschemiaCerebrospinal Fluid PressureCerebrumChromosome MappingCohort StudiesDisease ProgressionDNA Mutational AnalysisEpendymaFemaleGenetic LinkageGenetic Predisposition to DiseaseGenetic TestingGenetic VariationHumansIntracranial HypertensionLeukoencephalopathiesMagnetic Resonance ImagingMaleMexican AmericansMiddle AgedNerve Fibers, MyelinatedYoung AdultConceptsArterial pulse pressurePulse pressureImportant neuroimaging markerFluid-attenuated inversion recovery imagesCommon risk factorsWhite matter volumeYears of ageInversion recovery imagesHealthy Mexican AmericansHWM volumeFamily Heart StudyRisk factorsCerebral volumeNeuroimaging markerHeart StudyMatter volumeWhite matterWhole brainPathophysiology studiesCerebral integritySan Antonio Family Heart StudyRecovery imagesMexican AmericansWhole-genome linkageGenome linkageGenetics of DTI-derived parameters of cerebral white matter. A track-based heritability and linkage study in extended pedigree.
Kochunov P, Winkler A, Blangero J, Lancaster J, Almasy L, Fox P, Glahn D. Genetics of DTI-derived parameters of cerebral white matter. A track-based heritability and linkage study in extended pedigree. NeuroImage 2009, 47: s139. DOI: 10.1016/s1053-8119(09)71377-1.Peer-Reviewed Original Research