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Acute Alcohol‐Induced Changes Measured With Metabotropic Glutamate Receptor 5 Positron Emission Tomography
Raval N, Smart K, Angarita G, Miller R, Huang Y, Krystal J, Carson R, Cosgrove K, O'Malley S, Hillmer A. Acute Alcohol‐Induced Changes Measured With Metabotropic Glutamate Receptor 5 Positron Emission Tomography. Addiction Biology 2025, 30: e70031. PMID: 40309934, PMCID: PMC12044519, DOI: 10.1111/adb.70031.Peer-Reviewed Original ResearchConceptsBlood alcohol levelsAlcohol challengeEffects of acute alcohol consumptionPeak blood alcohol levelsLaboratory alcohol challengeNon-displaceable binding potentialMetabotropic glutamate receptor 5Acute alcohol challengeGlutamate releaseAlcohol-induced changesGlutamate receptor 5Alcohol consumptionAcute alcohol consumptionMGluR5 availabilityPET scansSocial drinkersEthanol doseAlcohol effectsBrain regionsAcute alcoholBinding potentialCortical regionsClinically relevant dosesDrinking occasionsAlcohol levelsImaging 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
2024
An In Vivo High-Resolution Human Brain Atlas of Synaptic Density
Johansen A, Beliveau V, Colliander E, Raval N, Dam V, Gillings N, Aznar S, Svarer C, Plavén-Sigray P, Knudsen G. An In Vivo High-Resolution Human Brain Atlas of Synaptic Density. Journal Of Neuroscience 2024, 44: e1750232024. PMID: 38997157, PMCID: PMC11326867, DOI: 10.1523/jneurosci.1750-23.2024.Peer-Reviewed Original ResearchPathogenesis of brain disordersBrain disordersHuman brainFunctional topographySynaptic densityBrain physiologySynapse densityHigher-order cortical areasSynaptic vesicle glycoprotein 2AHuman brain physiologyHealthy human brainSV2A densityPET neuroimagingComparative neuroscienceNeuroscience researchCortical areasBrainAutoradiography dataDisordersNeuroscienceBrain atlasesHealthy humansSV2APositive associationMRNA patternsDevelopment of Peptide-Based Probes for Molecular Imaging of the Postsynaptic Density in the Brain
Fernandes E, Palner M, Raval N, Jeppesen T, Danková D, Bærentzen S, Werner C, Eilts J, Maric H, Doose S, Aripaka S, Kaalund S, Aznar S, Kjaer A, Schlosser A, Haugaard-Kedström L, Knudsen G, Herth M, Stro̷mgaard K. Development of Peptide-Based Probes for Molecular Imaging of the Postsynaptic Density in the Brain. Journal Of Medicinal Chemistry 2024, 67: 11975-11988. PMID: 38981131, DOI: 10.1021/acs.jmedchem.4c00615.Peer-Reviewed Original ResearchPostsynaptic densityBrain slicesPSD-95Tracer bindingPostsynaptic density protein 95Rat brain slicesMolecular imagingPost-mortem Parkinson's diseaseScaffold proteinQuantitative autoradiographyAbundant proteinsSynaptic transmissionPostsynaptic impairmentHigh-affinity inhibitorsSignaling moleculesImaging studiesFluorescent tagsCell imaging studiesSynaptic density patterns in early Alzheimer’s disease assessed by independent component analysis
Fang X, Raval N, O’Dell R, Naganawa M, Mecca A, Chen M, van Dyck C, Carson R. Synaptic density patterns in early Alzheimer’s disease assessed by independent component analysis. Brain Communications 2024, 6: fcae107. PMID: 38601916, PMCID: PMC11004947, DOI: 10.1093/braincomms/fcae107.Peer-Reviewed Original ResearchMedial temporal brain regionsAlzheimer's diseaseTemporal brain regionsCognitive deficitsBrain regionsCognitive impairmentPostmortem studiesBinds to SV2ASynaptic densityReduction of synaptic densityIndependent component analysisSynaptic lossAlzheimerDeficitsImpairmentBrainNeocortexComponent analysisPrimary pathologySV2AEvaluation of F-537-Tetrazine in a model for brain pretargeting imaging. Comparison to N-(3-[18F] fluoro-5-(1,2,4,5-tetrazin-3-yl)benzyl)propan-1-amine
Shalgunov V, van den Broek S, Andersen I, Raval N, Schäfer G, Barz M, Herth M, Battisti U. Evaluation of F-537-Tetrazine in a model for brain pretargeting imaging. Comparison to N-(3-[18F] fluoro-5-(1,2,4,5-tetrazin-3-yl)benzyl)propan-1-amine. Nuclear Medicine And Biology 2024, 128: 108877. PMID: 38232579, DOI: 10.1016/j.nucmedbio.2024.108877.Peer-Reviewed Original ResearchAn in vivo high-resolution human brain atlas of synaptic density
Johansen A, Beliveau V, Colliander E, Raval N, Dam V, Gillings N, Aznar S, Svarer C, Plaven-Sigray P, Knudsen G. An in vivo high-resolution human brain atlas of synaptic density. Neuroscience Applied 2024, 3: 104022. DOI: 10.1016/j.nsa.2024.104022.Peer-Reviewed Original ResearchAn in vivo high-resolution human brain atlas of synaptic density
Johansen A, Beliveau V, Colliander E, Raval N, Dam V, Gillings N, Aznar S, Svarer C, Plaven-Sigray P, Knudsen G. An in vivo high-resolution human brain atlas of synaptic density. Neuroscience Applied 2024, 3: 105203. DOI: 10.1016/j.nsa.2024.105203.Peer-Reviewed Original Research
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 ResearchPretargeted imaging beyond the blood–brain barrier
Shalgunov V, van den Broek S, Andersen I, Vázquez R, Raval N, Palner M, Mori Y, Schäfer G, Herrmann B, Mikula H, Beschorner N, Nedergaard M, Syvänen S, Barz M, Knudsen G, Battisti U, Herth M. Pretargeted imaging beyond the blood–brain barrier. RSC Medicinal Chemistry 2023, 14: 444-453. PMID: 36970152, PMCID: PMC10034008, DOI: 10.1039/d2md00360k.Peer-Reviewed Original ResearchRational drug design approachDrug design approachBioorthogonal chemistryTetrazine ligationAttractive reactionPhysicochemical propertiesFluorine-18Blood-brain barrierLead compoundsMolecular imaging technologySoluble oligomersPositron emission tomographyBiomarker proteinsIdeal radionuclideTetrazineChemistryFavorable characteristicsDrug developmentOligomersPropertiesPretargetingNanomedicineCompoundsStructureReaction
News
News
- June 25, 2025
SNMMI honors Yale researchers with awards at 2025 annual meeting
- May 07, 2025
Raval Honored with Three Travel Awards
- October 30, 2024
Six Postgraduate, Postdoctoral Associates Honored at Yale Conference for Alcohol Research and Education
- September 13, 2022
Inaugural Yale Conference on Alcohol Research and Education (YCARE) Convenes Diverse Audience for an Interdisciplinary Day of Learning
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