2018
Assessing Synaptic Density in Alzheimer Disease With Synaptic Vesicle Glycoprotein 2A Positron Emission Tomographic Imaging
Chen MK, Mecca AP, Naganawa M, Finnema SJ, Toyonaga T, Lin SF, Najafzadeh S, Ropchan J, Lu Y, McDonald JW, Michalak HR, Nabulsi NB, Arnsten AFT, Huang Y, Carson RE, van Dyck CH. Assessing Synaptic Density in Alzheimer Disease With Synaptic Vesicle Glycoprotein 2A Positron Emission Tomographic Imaging. JAMA Neurology 2018, 75: 1215-1224. PMID: 30014145, PMCID: PMC6233853, DOI: 10.1001/jamaneurol.2018.1836.Peer-Reviewed Original ResearchConceptsPositron emission tomographic imagingSynaptic vesicle glycoprotein 2ASynaptic densityAlzheimer's diseaseEmission tomographic imagingHigh-resolution PET scanningPET scanningCognitive impairmentDisease-modifying therapiesDisease-modifying treatmentsNormal participantsCross-sectional studyPittsburgh compound BMajor structural correlateAmnestic mild cognitive impairmentMagnetic resonance imagingMild cognitive impairmentJ PET imagingRestoration of synapsesSpecific bindingNeurologic evaluationSynaptic lossDisease stagePostmortem studiesOutcome measuresGuanfacine treatment for prefrontal cognitive dysfunction in older participants: a randomized clinical trial
Barcelos NM, Van Ness PH, Wagner AF, MacAvoy MG, Mecca AP, Anderson GM, Trentalange M, Hawkins KA, Sano M, Arnsten AFT, van Dyck CH. Guanfacine treatment for prefrontal cognitive dysfunction in older participants: a randomized clinical trial. Neurobiology Of Aging 2018, 70: 117-124. PMID: 30007160, PMCID: PMC6503670, DOI: 10.1016/j.neurobiolaging.2018.05.033.Peer-Reviewed Original ResearchConceptsDose of guanfacineQuality of lifeZ-scoreCognitive functionPrefrontal cognitive dysfunctionCommon adverse eventsPrimary outcome measureRandomized clinical trialsGlobal functionOlder participantsHealthy older participantsPrefrontal cognitive functionDry mouthAdverse eventsAgonist guanfacineClinical trialsGuanfacine treatmentCognitive dysfunctionMean changeOutcome measuresPlaceboGuanfacineOlder individualsWeeksDose
2001
Reproducibility of in vivo brain measures of 5-HT2A receptors with PET and [18F]deuteroaltanserin
Soares J, van Dyck C, Tan P, Zoghbi S, Garg P, Soufer R, Baldwin R, Fujita M, Staley J, Fu X, Amici L, Seibyl J, Innis R. Reproducibility of in vivo brain measures of 5-HT2A receptors with PET and [18F]deuteroaltanserin. Psychiatry Research 2001, 106: 81-93. PMID: 11306248, DOI: 10.1016/s0925-4927(01)00071-3.Peer-Reviewed Original ResearchConceptsTest/retest reproducibilityPositron emission tomographyCortical brain areasIntra-class correlation coefficientRetest reproducibilityBrain areasBrain measuresHealthy human subjectsMean intra-class correlation coefficientOutcome measuresConstant infusionParent tracerBlood measurementsEmission tomographyNeuropsychiatric disordersPET measuresReceptorsHuman subjectsPET acquisitionMean intraEquilibrium imagingImaging methodInfusionBolusRTNeuroimaging in alzheimer’s disease: Relevance for treatment
van Dyck C. Neuroimaging in alzheimer’s disease: Relevance for treatment. Current Psychiatry Reports 2001, 3: 13-19. PMID: 11177754, DOI: 10.1007/s11920-001-0066-2.Peer-Reviewed Original ResearchConceptsAlzheimer's diseaseAD patientsRegional cerebral glucose metabolismRegional cerebral blood flowApolipoprotein E e4 alleleAnti-amyloid therapiesCerebral glucose metabolismDisease-modifying agentsCentral cholinergic neurotransmissionWhole brain atrophyCerebral blood flowPutative disease-modifying agentsWidespread clinical testingStructural magnetic resonanceBrain atrophyPrevention therapyInvestigational trialsAsymptomatic subjectsEfficacy measuresCholinergic neurotransmissionE4 alleleSenile plaquesDrug dosingOutcome measuresBlood flow
2000
Estrogen Replacement Therapy for Treatment of Mild to Moderate Alzheimer Disease: A Randomized Controlled Trial
Mulnard R, Cotman C, Kawas C, van Dyck C, Sano M, Doody R, Koss E, Pfeiffer E, Jin S, Gamst A, Grundman M, Thomas R, Thal L, Study F. Estrogen Replacement Therapy for Treatment of Mild to Moderate Alzheimer Disease: A Randomized Controlled Trial. JAMA 2000, 283: 1007-1015. PMID: 10697060, DOI: 10.1001/jama.283.8.1007.Peer-Reviewed Original ResearchConceptsEstrogen replacement therapyModerate Alzheimer's diseaseSecondary outcome measuresReplacement therapyAlzheimer's diseaseOutcome measuresClinical trialsPlacebo-controlled clinical trialMini-Mental State Examination scoreAlzheimer's Disease Cooperative StudyPrevention of ADClinical Dementia Rating ScaleClinical Global ImpressionPrimary outcome measureTreatment of mildSmall clinical trialsRole of estrogenState Examination scoreDementia Rating ScaleCGIC scoresEstrogen groupPlacebo groupControlled TrialsFunctional outcomeGlobal Impression