2024
11C-UCB-J PET imaging is consistent with lower synaptic density in autistic adults
Matuskey D, Yang Y, Naganawa M, Koohsari S, Toyonaga T, Gravel P, Pittman B, Torres K, Pisani L, Finn C, Cramer-Benjamin S, Herman N, Rosenthal L, Franke C, Walicki B, Esterlis I, Skosnik P, Radhakrishnan R, Wolf J, Nabulsi N, Ropchan J, Huang Y, Carson R, Naples A, McPartland J. 11C-UCB-J PET imaging is consistent with lower synaptic density in autistic adults. Molecular Psychiatry 2024, 1-7. PMID: 39367053, DOI: 10.1038/s41380-024-02776-2.Peer-Reviewed Original ResearchPositron emission tomographySynaptic densityAutistic adultsBrain regionsAutistic featuresClinical phenotype of autismNon-autistic participantsPhenotype of autismNon-autistic individualsRelationship to clinical characteristicsSynaptic vesicle glycoprotein 2AAssociated with clinical measuresPost-mortem studiesPositron emission tomography scanPrefrontal cortexClinician ratingsAutism groupNeural basisBrain areasNeural processesBetween-group differencesVolumetric differencesBinding potentialDensity of synapsesAutism
2020
Imaging-genetics of sex differences in ASD: distinct effects of OXTR variants on brain connectivity
Hernandez LM, Lawrence KE, Padgaonkar NT, Inada M, Hoekstra JN, Lowe JK, Eilbott J, Jack A, Aylward E, Gaab N, Van Horn JD, Bernier RA, McPartland JC, Webb SJ, Pelphrey KA, Green SA, Geschwind DH, Bookheimer SY, Dapretto M. Imaging-genetics of sex differences in ASD: distinct effects of OXTR variants on brain connectivity. Translational Psychiatry 2020, 10: 82. PMID: 32127526, PMCID: PMC7054353, DOI: 10.1038/s41398-020-0750-9.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderNeurotypical malesOXTR variantsBrain connectivityNeurobiological mechanismsPrefrontal cortexFunctional connectivityNetwork resting-state functional connectivityManifestation of ASDReward-related brain regionsResting-state functional connectivityBrain areasGreater functional connectivityPrefrontal brain areasFemale protective effectSubcortical brain areasSpectrum disorderMotor learningOXTR geneDiagnosis relateHigh OXTRBrain regionsGenetic riskSubcortical regionsSex differences