2024
Correlation between changes in apathy and cognition in Alzheimer’s disease associated apathy: Analysis of the Apathy in Dementia Methylphenidate Trial 2 (ADMET 2)
Sankhe K, Tumati S, Perin J, Rivet L, Vieira D, Rosenberg P, Herrmann N, Shade D, Lerner A, Padala P, Brawman-Mintzer O, van Dyck C, Porsteinsson A, Craft S, Levey A, Mintzer J, Lanctôt K. Correlation between changes in apathy and cognition in Alzheimer’s disease associated apathy: Analysis of the Apathy in Dementia Methylphenidate Trial 2 (ADMET 2). International Psychogeriatrics 2024, 100012. DOI: 10.1016/j.inpsyc.2024.100012.Peer-Reviewed Original ResearchBoston Naming TestMini-Mental State ExamCategory fluencyMild-to-moderate AD patientsClinically significant apathyCognitive change scoresModerate AD patientsHopkins Verbal LearningVerbal learningDigit spanNaming TestVerbal fluencySignificant apathyTrail MakingCognitive changesMeasure apathyMethylphenidateCognitionCognitive scoresState ExamMini-MentalChange scoresApathyAD patientsTrial 2
2022
Heterogeneity of response to methylphenidate in apathetic patients in the ADMET 2 Trial
Lanctôt K, Perin J, Vieira D, Rosenberg P, Herrmann N, Shade D, Lerner A, Padala P, Brawman‐Mintzer O, van Dyck C, Porsteinsson A, Craft S, Levey A, Mintzer J. Heterogeneity of response to methylphenidate in apathetic patients in the ADMET 2 Trial. Alzheimer's & Dementia 2022, 18 DOI: 10.1002/alz.066932.Peer-Reviewed Original ResearchHeterogeneity of responseAlzheimer's diseaseAD patientsBaseline anxietyPlacebo-controlled clinical trialApathetic AD patientsDaily Living ScaleCommon neuropsychiatric symptomsLow functional capacityLower functional capabilityNPI apathy scoreLower baseline anxietyAD medicationsDifference of changesNeuropsychiatric InventoryNeuropsychiatric symptomsApathetic patientsClinical trialsMonth visitTreatment outcomesEffect differencesSignificant apathyLiving ScaleApathy scoresFunctional capacity
2009
Regional distribution and behavioral correlates of 5-HT2A receptors in Alzheimer's disease with [18F]deuteroaltanserin and PET
Santhosh L, Estok KM, Vogel RS, Tamagnan GD, Baldwin RM, Mitsis EM, MacAvoy MG, Staley JK, van Dyck CH. Regional distribution and behavioral correlates of 5-HT2A receptors in Alzheimer's disease with [18F]deuteroaltanserin and PET. Psychiatry Research 2009, 173: 212-217. PMID: 19682865, DOI: 10.1016/j.pscychresns.2009.03.007.Peer-Reviewed Original ResearchConceptsPositron emission tomographyAD patient samplesAlzheimer's diseaseAD patientsAnterior cingulateBehavioral symptomsBrain serotonin 2A (5-HT(2A)) receptorsPatient samplesConstant infusion paradigmSerotonin 2A receptorProbable Alzheimer's diseaseMajor behavioral symptomsBehavioral correlatesInfusion paradigmPostmortem studiesPsychotic symptomsElderly controlsMRI scansSubcortical regionsSerotonergic dysregulationEmission tomographyPatientsDiseaseInterest analysisSymptoms
2006
Apolipoprotein E ɛ4 Allele Increases Risk for Psychotic Symptoms in Alzheimer's Disease
Zdanys KF, Kleiman TG, MacAvoy MG, Black BT, Rightmer TE, Grey M, Garman KS, Tampi RR, Gelernter J, van Dyck CH. Apolipoprotein E ɛ4 Allele Increases Risk for Psychotic Symptoms in Alzheimer's Disease. Neuropsychopharmacology 2006, 32: 171-179. PMID: 16841077, DOI: 10.1038/sj.npp.1301148.Peer-Reviewed Original ResearchConceptsAD patientsPsychotic symptomsAlzheimer's diseaseBehavioral symptomsNeuropsychiatric InventoryApolipoprotein EMultiple logistic regression modelSporadic Alzheimer's diseaseGenetic risk factorsSevere-stage Alzheimer's diseaseLogistic regression modelsDifferent risk profilesDementia progressesRisk factorsIncrease riskBehavioral disturbancesPatientsDisease severitySymptomsSignificant psychosisRisk profileGreater riskApoEExploratory analysisDisease
2005
Apolipoprotein E epsilon4 is associated with atrophy of the amygdala in Alzheimer's disease
Basso M, Gelernter J, Yang J, MacAvoy MG, Varma P, Bronen RA, van Dyck CH. Apolipoprotein E epsilon4 is associated with atrophy of the amygdala in Alzheimer's disease. Neurobiology Of Aging 2005, 27: 1416-1424. PMID: 16182410, DOI: 10.1016/j.neurobiolaging.2005.08.002.Peer-Reviewed Original ResearchConceptsAlzheimer's diseaseAD patientsAPOE epsilon4AD groupImportant genetic risk factorApolipoprotein E epsilon4Regional brain atrophyAPOE epsilon4 alleleElderly control subjectsNormal elderly control subjectsGenetic risk factorsAmygdaloid volumesBrain atrophyControl subjectsEpsilon4 carriersRisk factorsEpsilon4 alleleHippocampal volumeEpsilon4 doseAnalysis of covarianceDisease severityPatientsEpsilon4AmygdalaAtrophy
2001
Neuroimaging 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
1997
The acetylcholine releaser linopirdine increases parietal regional cerebral blood flow in Alzheimer’s disease
van Dyck C, Lin C, Robinson R, Cellar J, Smith E, Nelson J, Arnsten A, Hoffer P. The acetylcholine releaser linopirdine increases parietal regional cerebral blood flow in Alzheimer’s disease. Psychopharmacology 1997, 132: 217-226. PMID: 9292621, DOI: 10.1007/s002130050339.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowParietal regional cerebral blood flowCerebral blood flowAlzheimer's diseaseAD patientsBlood flowDouble-blind trialWeeks of treatmentAD drug therapyProbable Alzheimer's diseaseParietal association cortexSingle photon emissionPlacebo TIDRCBF abnormalitiesCholinergic drugsDrug therapyHealthy controlsRCBF ratiosPharmacological interventionsHealthy subjectsAssociation cortexPatientsLinopirdineBrain regionsNeuropsychological function