2020
Nondisplaceable Binding Is a Potential Confounding Factor in 11C-PBR28 Translocator Protein PET Studies
Laurell G, Plavén-Sigray P, Jucaite A, Varrone A, Cosgrove KP, Svarer C, Knudsen G, Consortium K, Ogden R, Zanderigo F, Cervenka S, Hillmer A, Schain M. Nondisplaceable Binding Is a Potential Confounding Factor in 11C-PBR28 Translocator Protein PET Studies. Journal Of Nuclear Medicine 2020, 62: 412-417. PMID: 32680926, PMCID: PMC8049343, DOI: 10.2967/jnumed.120.243717.Peer-Reviewed Original ResearchMeSH KeywordsArtifactsBrainHumansPositron-Emission TomographyProtein BindingPyrimidinesReceptors, GABAConceptsAlcohol use disorderDistribution volumePET studiesParkinson's diseaseFirst-episode psychosis patientsTranslocator proteinAdministration of lipopolysaccharideNondisplaceable bindingFirst-episode psychosisPotential confounding factorsTotal distribution volumeC-PBR28Patient groupPsychosis patientsLipopolysaccharide challengeClinical studiesOutcome measuresTSPO PET studiesUse disordersPET ligandConfounding factorsCorresponding controlsDiseaseDisordersGroup
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