2019
Effects of age, BMI and sex on the glial cell marker TSPO — a multicentre [11C]PBR28 HRRT PET study
Tuisku J, Plavén-Sigray P, Gaiser EC, Airas L, Al-Abdulrasul H, Brück A, Carson RE, Chen MK, Cosgrove KP, Ekblad L, Esterlis I, Farde L, Forsberg A, Halldin C, Helin S, Kosek E, Lekander M, Lindgren N, Marjamäki P, Rissanen E, Sucksdorff M, Varrone A, Collste K, Gallezot J, Hillmer A, Huang Y, Höglund C, Johansson J, Jucaite A, Lampa J, Nabulsi N, Pittman B, Sandiego C, Stenkrona P, Rinne J, Matuskey D, Cervenka S. Effects of age, BMI and sex on the glial cell marker TSPO — a multicentre [11C]PBR28 HRRT PET study. European Journal Of Nuclear Medicine And Molecular Imaging 2019, 46: 2329-2338. PMID: 31363804, PMCID: PMC6717599, DOI: 10.1007/s00259-019-04403-7.Peer-Reviewed Original ResearchConceptsBody mass indexPositron emission tomographyEffect of ageMultilinear analysis 1PET centersGlobal gray matterMass indexSubgroup analysisClinical studiesTSPO levelsHealthy subjectsTurku PET CentreHealthy volunteersPositive correlationTemporal cortexTSPO genotypeIndividual biological propertiesMale subjectsPurposeThe purposeConclusionThese findingsLinear mixed effects modelsGray matterParietal cortexSignificant negative correlationEmission tomography
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 analysisOCD is associated with an altered association between sensorimotor gating and cortical and subcortical 5-HT1b receptor binding
Pittenger C, Adams TG, Gallezot JD, Crowley MJ, Nabulsi N, Ropchan J, Gao H, Kichuk SA, Simpson R, Billingslea E, Hannestad J, Bloch M, Mayes L, Bhagwagar Z, Carson RE. OCD is associated with an altered association between sensorimotor gating and cortical and subcortical 5-HT1b receptor binding. Journal Of Affective Disorders 2016, 196: 87-96. PMID: 26919057, PMCID: PMC4808438, DOI: 10.1016/j.jad.2016.02.021.Peer-Reviewed Original ResearchConceptsPrepulse inhibitionObsessive-compulsive disorderReceptor availabilitySensorimotor gatingOCD patientsImpaired sensorimotor gatingOCD-like behaviorNon-depressed OCD patientsPositron emission tomographyBasal gangliaSerotonergic regulationHealthy controlsSerotonin systemPositive correlationWidespread positive correlationsDiagnostic groupsCortical regionsEmission tomographyOrbitofrontal cortexPatientsReceptor bindingOCD diagnosisSignificant correlationSignificant main effectImportant alterations