2024
Synaptic 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 pathologySV2ASynaptic loss and its association with symptom severity in Parkinson’s disease
Holmes S, Honhar P, Tinaz S, Naganawa M, Hilmer A, Gallezot J, Dias M, Yang Y, Toyonaga T, Esterlis I, Mecca A, Van Dyck C, Henry S, Ropchan J, Nabulsi N, Louis E, Comley R, Finnema S, Carson R, Matuskey D. Synaptic loss and its association with symptom severity in Parkinson’s disease. Npj Parkinson's Disease 2024, 10: 42. PMID: 38402233, PMCID: PMC10894197, DOI: 10.1038/s41531-024-00655-9.Peer-Reviewed Original ResearchSynaptic density lossPositron emission tomographyBinds to synaptic vesicle glycoprotein 2AAssociated with symptom severityParkinson's diseaseHigh-resolution positron emission tomographySynaptic vesicle glycoprotein 2ADuration of illnessPositron emission tomography scanBrain perfusionIllness durationSymptom severitySeverity of symptomsHC groupSubstantia nigraSynaptic densityLiving brainPD individualsClinical insightsDensity lossPD patientsEmission tomographyBrainSynaptic lossSynapse loss
2001
Comparison of [18F]altanserin and [18F]deuteroaltanserin for PET imaging of serotonin2A receptors in baboon brain: pharmacological studies
Staley J, Van Dyck C, Tan P, Al Tikriti M, Ramsby Q, Klump H, Ng C, Garg P, Soufer R, Baldwin R, Innis R. Comparison of [18F]altanserin and [18F]deuteroaltanserin for PET imaging of serotonin2A receptors in baboon brain: pharmacological studies. Nuclear Medicine And Biology 2001, 28: 271-279. PMID: 11323237, DOI: 10.1016/s0969-8051(00)00212-2.Peer-Reviewed Original ResearchConceptsReceptor antagonist SR 46349BSerotonin2A receptorsSR 46349BReceptor radiotracerPharmacological specificityTime-activity curvesConstant infusionBaboon brainCortical activityDistribution volumePharmacological studiesPET imagingRadiotracerBrainReceptorsBaboonsPET imagesRegional distributionFenfluramineInfusionBolus