Featured Publications
Imaging the brain’s immune response to alcohol with [11C]PBR28 TSPO Positron Emission Tomography
Raval N, Angarita G, Matuskey D, Miller R, Drake L, Kapinos M, Nabulsi N, Huang Y, Carson R, O’Malley S, Cosgrove K, Hillmer A. Imaging the brain’s immune response to alcohol with [11C]PBR28 TSPO Positron Emission Tomography. Molecular Psychiatry 2023, 28: 3384-3390. PMID: 37532797, PMCID: PMC10743097, DOI: 10.1038/s41380-023-02198-6.Peer-Reviewed Original ResearchConceptsVolume of distributionBlood alcohol levelsPositron emission tomographyBrain immune responseImmune responseAlcohol challengeEmission tomographyPeak blood alcohol levelsMultilinear analysis 1Peripheral immune functionVivo human evidenceLaboratory alcohol challengeTSPO positron emission tomographyBinge levelsPlasma cytokinesImmune dysfunctionNeuroimmune systemIL-6MCP-1Cytokines TNFAcute effectsScan dayArterial bloodHuman evidenceImmune function
2022
An in vivo Pig Model for Testing Novel Positron Emission Tomography Radioligands Targeting Cerebral Protein Aggregates
Raval NR, Nasser A, Madsen CA, Beschorner N, Beaman EE, Juhl M, Lehel S, Palner M, Svarer C, Plavén-Sigray P, Jørgensen LM, Knudsen GM. An in vivo Pig Model for Testing Novel Positron Emission Tomography Radioligands Targeting Cerebral Protein Aggregates. Frontiers In Neuroscience 2022, 16: 847074. PMID: 35368260, PMCID: PMC8966485, DOI: 10.3389/fnins.2022.847074.Peer-Reviewed Original ResearchPositron emission tomographyNovel radioligandPig modelAlzheimer's diseaseEmission tomographyΑ-synucleinGood translational modelΑ-synuclein pathologyBlood-brain barrierPostmortem human brain tissueReference tissue model 2Gadolinium-enhanced MRILarge animal modelNovel positron emission tomographyHuman brain tissueTimes higher uptakeCerebral injectionLewy bodiesVivo pig modelSaline injectionEssential clinical toolOccipital cortexParkinson's diseaseAppropriate radioligandsPET scans
2021
Synaptic Density and Neuronal Metabolic Function Measured by Positron Emission Tomography in the Unilateral 6-OHDA Rat Model of Parkinson’s Disease
Raval NR, Gudmundsen F, Juhl M, Andersen IV, Speth N, Videbæk A, Petersen IN, Mikkelsen JD, Fisher PM, Herth MM, Plavén-Sigray P, Knudsen GM, Palner M. Synaptic Density and Neuronal Metabolic Function Measured by Positron Emission Tomography in the Unilateral 6-OHDA Rat Model of Parkinson’s Disease. Frontiers In Synaptic Neuroscience 2021, 13: 715811. PMID: 34867258, PMCID: PMC8636601, DOI: 10.3389/fnsyn.2021.715811.Peer-Reviewed Original ResearchNeuronal metabolic functionPositron emission tomographyParkinson's diseaseSynaptic densityCortical regionsJ bindingDopaminergic lesionVentral midbrainEmission tomographyIpsilateral ventral midbrainLower synaptic densityRostral substantia nigraUnilateral dopaminergic lesionNon-motor symptomsThalamo-cortical circuitsMetabolic functionsMedial forebrain bundleHigh synaptic densityMedial prefrontal cortexCerebral changesMotor dysfunctionUnilateral injectionDopaminergic neuronsSubstantia nigraBasal ganglia
2020
Blocking of efflux transporters in rats improves translational validation of brain radioligands
Shalgunov V, Xiong M, L’Estrade E, Raval NR, Andersen IV, Edgar FG, Speth NR, Baerentzen SL, Hansen HD, Donovan LL, Nasser A, Peitersen ST, Kjaer A, Knudsen GM, Syvänen S, Palner M, Herth MM. Blocking of efflux transporters in rats improves translational validation of brain radioligands. EJNMMI Research 2020, 10: 124. PMID: 33074370, PMCID: PMC7572968, DOI: 10.1186/s13550-020-00718-x.Peer-Reviewed Original ResearchP-gp inhibitionBrain uptakePET tracersEfflux transportersDopamine D2/3 receptorsRat dataBackgroundPositron emission tomographyLow brain uptakeInitial preclinical evaluationD2/3 receptorsRat brainPreclinical evaluationMolecular imaging techniquesP-gpVivo pharmacologyEmission tomographyP-glycoproteinTranslational validationRodent dataPET radiotracersHigh expressionRatsDisease modelsTarget-specific bindingReceptors