2019
Social status and demographic effects of the kappa opioid receptor: a PET imaging study with a novel agonist radiotracer in healthy volunteers
Matuskey D, Dias M, Naganawa M, Pittman B, Henry S, Li S, Gao H, Ropchan J, Nabulsi N, Carson RE, Huang Y. Social status and demographic effects of the kappa opioid receptor: a PET imaging study with a novel agonist radiotracer in healthy volunteers. Neuropsychopharmacology 2019, 44: 1714-1719. PMID: 30928993, PMCID: PMC6785144, DOI: 10.1038/s41386-019-0379-7.Peer-Reviewed Original ResearchConceptsBody mass indexKappa-opioid receptorsPositron emission tomographyAgonist radiotracerKOR systemOpioid receptorsTime-activity curvesBarratt Simplified MeasureAnterior cingulate cortexArterial blood samplingMultilinear analysis-1 (MA1) methodPET imaging studiesKOR levelsMass indexPreclinical modelsFrontal cortexHealthy volunteersRegional time-activity curvesBlood samplingPET scansCingulate cortexImaging studiesEmission tomographyVentral striatumRegional volumes
2016
Age-related changes in binding of the D2/3 receptor radioligand [11C](+)PHNO in healthy volunteers
Matuskey D, Worhunksy P, Correa E, Pittman B, Gallezot JD, Nabulsi N, Ropchan J, Sreeram V, Gudepu R, Gaiser E, Cosgrove K, Ding YS, Potenza MN, Huang Y, Malison RT, Carson RE. Age-related changes in binding of the D2/3 receptor radioligand [11C](+)PHNO in healthy volunteers. NeuroImage 2016, 130: 241-247. PMID: 26876475, PMCID: PMC4808424, DOI: 10.1016/j.neuroimage.2016.02.002.Peer-Reviewed Original ResearchConceptsPositron emission tomographyReceptor availabilitySN/VTADopamine systemMidbrain regionsSubstantia nigra/ventral tegmental areaHealthy control subjectsWhole-brain voxel-wise analysisVentral tegmental areaPrevious imaging studiesVoxel-wise analysisAge-associated declineAge-related changesAntagonist radiotracersExtrastriatal areasReference tissue modelAgonist radiotracerAge-related declineControl subjectsTegmental areaHealthy subjectsHealthy volunteersPositive correlationReceptor radioligandSecondary analysis