2023
Kinetic models for estimating occupancy from single-scan PET displacement studies
Laurell G, Plavén-Sigray P, Johansen A, Raval N, Nasser A, Madsen C, Madsen J, Hansen H, Donovan L, Knudsen G, Lammertsma A, Ogden R, Svarer C, Schain M. Kinetic models for estimating occupancy from single-scan PET displacement studies. Cerebrovascular And Brain Metabolism Reviews 2023, 43: 1544-1556. PMID: 37070382, PMCID: PMC10414003, DOI: 10.1177/0271678x231168591.Peer-Reviewed Original Research
2022
Evaluation of the α-synuclein PET radiotracer (d3)-[11C]MODAG-001 in pigs
Raval N, Madsen C, Shalgunov V, Nasser A, Battisti U, Beaman E, Juhl M, Jørgensen L, Herth M, Hansen H, Plavén-Sigray P, Knudsen G. Evaluation of the α-synuclein PET radiotracer (d3)-[11C]MODAG-001 in pigs. Nuclear Medicine And Biology 2022, 114: 42-48. PMID: 36095921, DOI: 10.1016/j.nucmedbio.2022.08.001.Peer-Reviewed Original ResearchConceptsAlzheimer's diseaseOccipital cortexΑ-synuclein pre-formed fibrilsInjected regionΑ-synuclein pathologyAD brain homogenatesDose-dependent effectPositron emission tomography (PET) radiotracerPre-formed fibrilsΑ-synuclein aggregatesReference regionAD homogenatesLogan graphical analysisLewy bodiesHistopathological hallmarksEarly diagnosisParkinson's diseasePET scansBrain homogenatesTime-activity curvesPig modelBrain regionsTomography radiotracerPig brainPET radiotracers
2021
A Single Dose of Psilocybin Increases Synaptic Density and Decreases 5-HT2A Receptor Density in the Pig Brain
Raval NR, Johansen A, Donovan LL, Ros NF, Ozenne B, Hansen HD, Knudsen GM. A Single Dose of Psilocybin Increases Synaptic Density and Decreases 5-HT2A Receptor Density in the Pig Brain. International Journal Of Molecular Sciences 2021, 22: 835. PMID: 33467676, PMCID: PMC7830000, DOI: 10.3390/ijms22020835.Peer-Reviewed Original ResearchConceptsAntidepressive effectsR densitySingle dosePig brainSerotonin 2A receptor agonistSynaptic vesicle protein 2AAntidepressant effectsAntidepressive actionReceptor agonistAcute decreaseSynaptic densityReceptor densityCortex sectionsAwake pigsHippocampusDoseProtein 2ASynaptogenesisBrainPsilocybinPigsDaysAgonistsRadioligand
2020
The radiosensitizer Onalespib increases complete remission in 177Lu-DOTATATE-treated mice bearing neuroendocrine tumor xenografts
Lundsten S, Spiegelberg D, Raval NR, Nestor M. The radiosensitizer Onalespib increases complete remission in 177Lu-DOTATATE-treated mice bearing neuroendocrine tumor xenografts. European Journal Of Nuclear Medicine And Molecular Imaging 2020, 47: 980-990. PMID: 31912256, PMCID: PMC7075859, DOI: 10.1007/s00259-019-04673-1.Peer-Reviewed Original ResearchConceptsComplete remissionToxicity profileNeuroendocrine tumorsSomatostatin receptorsCombination treatmentHistological analysisFavorable toxicity profileBetter therapeutic resultsDose-limiting organHeat shock protein 90 inhibitorShock protein 90 inhibitorsNeuroendocrine tumor xenograftsMonotherapy groupGlomerular injuryUnwanted side effectsCombination groupTherapeutic resultsTherapeutic effectTumor xenograftsSide effectsTumor uptakeRemissionXenograftsTumorsHSP70 upregulation