2024
National Estimates of Short- and Longer-Term Hospital Readmissions After Major Surgery Among Community-Living Older Adults
Wang Y, Leo-Summers L, Vander Wyk B, Davis-Plourde K, Gill T, Becher R. National Estimates of Short- and Longer-Term Hospital Readmissions After Major Surgery Among Community-Living Older Adults. JAMA Network Open 2024, 7: e240028. PMID: 38416499, PMCID: PMC10902728, DOI: 10.1001/jamanetworkopen.2024.0028.Peer-Reviewed Original ResearchConceptsCenters for Medicare & Medicaid ServicesFee-for-serviceMedicare Advantage beneficiariesHospital readmissionUS residentsNational Health and Aging Trends Study dataCommunity-living older adultsProspective longitudinal cohort studyCommunity-living participantsRate of hospital readmissionLikelihood of hospital readmissionPopulation-based estimatesNationally representative estimatesSex-adjusted modelsCommunity-livingData linkageGeriatric conditionsMedicaid ServicesOlder personsOlder adultsMain OutcomesNational estimatesRepresentative estimatesData analysisCohort study
2022
Population-Based Estimates of 1-Year Mortality After Major Surgery Among Community-Living Older US Adults
Gill TM, Vander Wyk B, Leo-Summers L, Murphy TE, Becher RD. Population-Based Estimates of 1-Year Mortality After Major Surgery Among Community-Living Older US Adults. JAMA Surgery 2022, 157: e225155. PMID: 36260323, PMCID: PMC9582971, DOI: 10.1001/jamasurg.2022.5155.Peer-Reviewed Original ResearchConceptsPopulation-based estimatesMajor surgeryMean survival timeOlder US adultsProbable dementiaUS adultsSurvival timeSex-adjusted hazard ratioProspective longitudinal cohort studyCommunity-living older adultsLongitudinal cohort studyPotential prognostic valueService Medicare beneficiariesNon-Hispanic blacksNon-Hispanic whitesAging Trends StudyGeriatric characteristicsCohort studyGeriatric surgeryHazard ratioNonelective surgeryElective surgeryGeriatric conditionsPrognostic valueMean ageDevelopment and validation of a prediction model for persistent functional impairment among older ICU survivors
Ferrante LE, Murphy TE, Leo‐Summers L, O'Leary JR, Vander Wyk B, Pisani MA, Gill TM. Development and validation of a prediction model for persistent functional impairment among older ICU survivors. Journal Of The American Geriatrics Society 2022, 71: 188-197. PMID: 36196998, PMCID: PMC9870848, DOI: 10.1111/jgs.18075.Peer-Reviewed Original ResearchConceptsPersistent functional impairmentICU hospitalizationFunctional impairmentValidation cohortICU admissionDevelopment cohortOlder Intensive Care Unit SurvivorsIntensive care unit survivorsOlder adultsOlder ICU survivorsMonths of dischargeHigh-risk survivorsCommunity-living participantsGood calibrationHospital lengthICU survivorsCritical illnessMedian agePrior hospitalizationFunctional recoveryNational HealthProbable dementiaHospitalizationHigh riskDepressive symptomsFactors associated with retention on medications for opioid use disorder among a cohort of adults seeking treatment in the community
Biondi BE, Vander Wyk B, Schlossberg EF, Shaw A, Springer SA. Factors associated with retention on medications for opioid use disorder among a cohort of adults seeking treatment in the community. Addiction Science & Clinical Practice 2022, 17: 15. PMID: 35255967, PMCID: PMC8899775, DOI: 10.1186/s13722-022-00299-1.Peer-Reviewed Original ResearchConceptsOpioid use disorderHigher pain interferenceMOUD retentionPain interferenceUse disordersOngoing prospective cohort studySevere opioid use disorderProspective cohort studyMultivariable logistic regressionCohort of adultsMethadone doseAnalgesic effectBuprenorphine doseCohort studyOpioid useResultsA totalHigher oddsMOUDAdjusted modelHigh doseLogistic regressionBuprenorphineMethadoneDoseDiscontinuation
2021
Modeling SARS-CoV-2 propagation using rat coronavirus-associated shedding and transmission
Zeiss CJ, Asher JL, Vander Wyk B, Allore HG, Compton SR. Modeling SARS-CoV-2 propagation using rat coronavirus-associated shedding and transmission. PLOS ONE 2021, 16: e0260038. PMID: 34813610, PMCID: PMC8610237, DOI: 10.1371/journal.pone.0260038.Peer-Reviewed Original ResearchConceptsViral sheddingSialodacryoadenitis virusSARS-CoV-2Prior natural infectionSARS-CoV-2 propagationSeropositive animalsLow-level sheddingNaive recipient ratsCOVID-19Cycle threshold valuesDirect contact exposureSeroconversion ratesReinfected animalsRecipient ratsImmune protectionHigh riskNaive animalsSusceptible individualsInitial infectionGlobal immunityExposure paradigmRat coronavirusNatural infectionInfectionRatsComparison of [11C]UCB-J and [18F]FDG PET in Alzheimer’s disease: A tracer kinetic modeling study
Chen MK, Mecca AP, Naganawa M, Gallezot JD, Toyonaga T, Mondal J, Finnema SJ, Lin SF, O’Dell R, McDonald JW, Michalak HR, Vander Wyk B, Nabulsi NB, Huang Y, Arnsten AF, van Dyck CH, Carson RE. Comparison of [11C]UCB-J and [18F]FDG PET in Alzheimer’s disease: A tracer kinetic modeling study. Cerebrovascular And Brain Metabolism Reviews 2021, 41: 2395-2409. PMID: 33757318, PMCID: PMC8393289, DOI: 10.1177/0271678x211004312.Peer-Reviewed Original ResearchConceptsSynaptic densityMedial temporal regionsAlzheimer's diseaseNeocortical regionsTemporal regionsRelative outcome measuresMedial temporal lobeVivo PET imagingJ bindingOutcome measuresTemporal lobeMagnitude of reductionCN participantsBrain regionsAD participantsDiseasePET imagingConcordant reductionNormal participantsSynaptic vesiclesPerfusionMetabolismSuitable markerParticipantsSimilar pattern
2020
Individual Heterogeneity in the Probability of Hospitalization, Skilled Nursing Facility Admission, and Mortality
McAvay GJ, Vander Wyk B, Allore H. Individual Heterogeneity in the Probability of Hospitalization, Skilled Nursing Facility Admission, and Mortality. The Journals Of Gerontology Series A 2020, 76: 1668-1677. PMID: 33320184, PMCID: PMC8361334, DOI: 10.1093/gerona/glaa314.Peer-Reviewed Original ResearchConceptsSkilled nursing facility admissionsNursing facility admissionsChronic kidney diseaseHeart failureFacility admissionKidney diseaseChronic conditionsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseIschemic heart diseaseHealth care utilizationProbability of hospitalizationPulmonary diseaseCare utilizationMortality outcomesPoor outcomeHeart diseaseNational HealthOdds ratioDisease combinationsLongitudinal cohortSociodemographic factorsMedicaid ServicesDiseaseAging StudyIn vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET
Mecca AP, Chen M, O'Dell RS, Naganawa M, Toyonaga T, Godek TA, Harris JE, Bartlett HH, Zhao W, Nabulsi NB, Vander Wyk B, Varma P, Arnsten AFT, Huang Y, Carson RE, van Dyck C. In vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET. Alzheimer's & Dementia 2020, 16: 974-982. PMID: 32400950, PMCID: PMC7383876, DOI: 10.1002/alz.12097.Peer-Reviewed Original ResearchConceptsWidespread synaptic lossEarly Alzheimer's diseaseSynaptic lossAlzheimer's diseaseSynaptic vesicle glycoprotein 2AGray matter volumeMajor structural correlatePositron emission tomography (PET) imagingEmission Tomography ImagingDistribution volume ratioCerebellar reference regionNeocortical brain regionsSynaptic densityAD progressionConsistent pathologyPotential therapyMatter volumePromising biomarkerCognitive impairmentCN participantsBrain regionsDiseaseTomography imagingNormal participantsStructural correlatesSingle cell immune profiling of dengue virus patients reveals intact immune responses to Zika virus with enrichment of innate immune signatures
Zhao Y, Amodio M, Vander Wyk B, Gerritsen B, Kumar MM, van Dijk D, Moon K, Wang X, Malawista A, Richards MM, Cahill ME, Desai A, Sivadasan J, Venkataswamy MM, Ravi V, Fikrig E, Kumar P, Kleinstein SH, Krishnaswamy S, Montgomery RR. Single cell immune profiling of dengue virus patients reveals intact immune responses to Zika virus with enrichment of innate immune signatures. PLOS Neglected Tropical Diseases 2020, 14: e0008112. PMID: 32150565, PMCID: PMC7082063, DOI: 10.1371/journal.pntd.0008112.Peer-Reviewed Original ResearchConceptsZika virusCell subsetsDengue virusConcurrent dengue infectionInnate cell responsesInnate immune signaturesVirus-infected individualsDivergent clinical outcomesMosquito-borne human pathogenIntact immune responsePre-existing infectionInnate cell typesSingle-cell immune profilingPublic health importanceCell typesImmune signaturesVirus patientsWest Nile virusAcute patientsClinical outcomesImmune profilingDengue infectionImmune statusFunctional statusImmune cellsChronic Polypharmacy with Increasing Drug Burden Index Exacerbates Frailty and Impairs Physical Function, with Effects Attenuated by Deprescribing, in Aged Mice
Mach J, Gemikonakli G, Logan C, Vander Wyk B, Allore H, Ekambareshwar S, Kane AE, Howlett SE, de Cabo R, Le Couteur DG, Hilmer SN. Chronic Polypharmacy with Increasing Drug Burden Index Exacerbates Frailty and Impairs Physical Function, with Effects Attenuated by Deprescribing, in Aged Mice. The Journals Of Gerontology Series A 2020, 76: 1010-1018. PMID: 32147704, PMCID: PMC8140051, DOI: 10.1093/gerona/glaa060.Peer-Reviewed Original ResearchConceptsDrug Burden IndexPhysical functionChronic polypharmacyOlder ageObservational studyDrug Burden Index (DBI) scoreHarms outweigh benefitsMale C57BL/6J miceClinical observational studyDose of drugFirst preclinical studyImpairs physical functionNumber of drugsGeriatric outcomesSupervised withdrawalDrug withdrawalAged miceBurden indexC57BL/6J micePreclinical modelsPolypharmacyPreclinical studiesDBI scoreTreatment groupsHealth outcomes
2019
Sociodemographic Factors and Characteristics of Caregivers as Determinants of Skilled Nursing Facility Admissions When Modeled Jointly With Functional Limitations
Jørgensen TSH, Allore H, MacNeil Vroomen JL, Wyk BV, Agogo GO. Sociodemographic Factors and Characteristics of Caregivers as Determinants of Skilled Nursing Facility Admissions When Modeled Jointly With Functional Limitations. Journal Of The American Medical Directors Association 2019, 20: 1599-1604.e4. PMID: 30902676, PMCID: PMC7444598, DOI: 10.1016/j.jamda.2019.01.154.Peer-Reviewed Original ResearchConceptsSkilled nursing facility admissionsNursing facility admissionsSNF admissionCharacteristics of caregiversFunctional limitationsSociodemographic factorsCaregiver characteristicsPartner caregiversFacility admissionHigh-risk populationImpact of caregiversNon-Hispanic whitesAging Trends StudyRace/ethnicityNational HealthStudy populationAdmissionLongitudinal changesMedicaid ServicesOlder adultsFuture interventionsEffect estimatesCaregiversLower hazardOlder Americans
2017
Neurogenetic analysis of childhood disintegrative disorder
Gupta AR, Westphal A, Yang DYJ, Sullivan CAW, Eilbott J, Zaidi S, Voos A, Vander Wyk BC, Ventola P, Waqar Z, Fernandez TV, Ercan-Sencicek AG, Walker MF, Choi M, Schneider A, Hedderly T, Baird G, Friedman H, Cordeaux C, Ristow A, Shic F, Volkmar FR, Pelphrey KA. Neurogenetic analysis of childhood disintegrative disorder. Molecular Autism 2017, 8: 19. PMID: 28392909, PMCID: PMC5379515, DOI: 10.1186/s13229-017-0133-0.Peer-Reviewed Original ResearchAdaptor Proteins, Signal TransducingAutism Spectrum DisorderBasic Helix-Loop-Helix Transcription FactorsBrainBrain MappingCase-Control StudiesChildChild, PreschoolChromosomes, Human, XDisease ProgressionDNA Copy Number VariationsExome SequencingFemaleGene ExpressionHumansIntellectual DisabilityMagnetic Resonance ImagingMaleMaternal InheritanceNuclear ProteinsPhenotypePolymorphism, GeneticSeverity of Illness IndexSiblingsTranscription FactorsTranscriptome
2016
Intranasal Oxytocin Enhances Connectivity in the Neural Circuitry Supporting Social Motivation and Social Perception in Children with Autism
Gordon I, Jack A, Pretzsch CM, Vander Wyk B, Leckman JF, Feldman R, Pelphrey KA. Intranasal Oxytocin Enhances Connectivity in the Neural Circuitry Supporting Social Motivation and Social Perception in Children with Autism. Scientific Reports 2016, 6: 35054. PMID: 27845765, PMCID: PMC5109935, DOI: 10.1038/srep35054.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderIntranasal oxytocinSocial motivationSocial perceptionSocial-emotional informationFunctional magnetic resonance imagingPlacebo-controlled crossover designBiological motionSocial stimuliAngry voicesSocial deficitsSpectrum disorderOT administrationMesolimbic reward pathwayBehavioral treatmentBrain rewardReduced connectivityBrain regionsReward pathwayCortical sitesRewardPerceptionMotivationOxytocinBrain sitesNeural Mechanisms of Cognitive-Behavioral Therapy for Aggression in Children and Adolescents: Design of a Randomized Controlled Trial Within the National Institute for Mental Health Research Domain Criteria Construct of Frustrative Non-Reward
Sukhodolsky DG, Vander Wyk B, Eilbott JA, McCauley SA, Ibrahim K, Crowley MJ, Pelphrey KA. Neural Mechanisms of Cognitive-Behavioral Therapy for Aggression in Children and Adolescents: Design of a Randomized Controlled Trial Within the National Institute for Mental Health Research Domain Criteria Construct of Frustrative Non-Reward. Journal Of Child And Adolescent Psychopharmacology 2016, 26: 38-48. PMID: 26784537, PMCID: PMC4779273, DOI: 10.1089/cap.2015.0164.Peer-Reviewed Original ResearchConceptsCognitive behavioral therapyReactive aggressionResearch Domain Criteria (RDoC) constructsSessions of CBTEmotional face perceptionEmotion regulation circuitryBrain-behavior associationsAggressive behaviorFunctional magnetic resonanceFace perceptionNon-RewardTraditional diagnostic categoriesNoGo taskFMRI scanningRDoC constructsElectrophysiological correlatesNeural mechanismsCriterion constructsFunctional neuroimagingBehavioral levelStrategic research prioritiesAge 8AggressionAdolescentsSupportive psychotherapy
2015
Normalization of brain morphology after surgery in sagittal craniosynostosis.
Brooks ED, Yang J, Beckett JS, Lacadie C, Scheinost D, Persing S, Zellner EG, Oosting D, Keifer C, Friedman HE, Wyk BV, Jou RJ, Sun H, Gary C, Duncan CC, Constable RT, Pelphrey KA, Persing JA. Normalization of brain morphology after surgery in sagittal craniosynostosis. Journal Of Neurosurgery Pediatrics 2015, 17: 460-8. PMID: 26684766, PMCID: PMC7182140, DOI: 10.3171/2015.7.peds15221.Peer-Reviewed Original ResearchConceptsBrain growthNonsyndromic craniosynostosisBrain morphological differencesWhole-brain techniqueYears of ageSignificant learning disabilitiesIQ-matched control subjectsUntreated infantsMean ageAdolescent patientsControl subjectsWhole-vault cranioplastyBrain dysmorphologySurgical reconstructionBrain areasTemporooccipital regionsSmall cohortSurgeryCognitive functionBrain morphologyBrain normalizationSagittal craniosynostosisLiberal thresholdSagittal nonsyndromic craniosynostosisFrontoparietal regionsUnlike adults, children and adolescents show predominantly increased neural activation to social exclusion by members of the opposite gender
Bolling DZ, Pelphrey KA, Vander Wyk B. Unlike adults, children and adolescents show predominantly increased neural activation to social exclusion by members of the opposite gender. Social Neuroscience 2015, 11: 475-486. PMID: 26592311, PMCID: PMC4976300, DOI: 10.1080/17470919.2015.1117019.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingNeural correlatesGroup membershipOnline ball-tossing gameSocial exclusionAnterior cingulate responsesBall-tossing gameSocial anxiety disorderOpposite genderSocio-emotional developmentDifferential neural correlatesAnterior cingulate cortexPrevious adult studiesPeer rejectionCingulate responseBrain responsesPeer relationsNeural activationAnxiety disordersCingulate cortexMain effectCurrent studyAdolescenceIncreased activationAdolescentsTrait-level temporal lobe hypoactivation to social exclusion in unaffected siblings of children and adolescents with autism spectrum disorders
Bolling DZ, Pelphrey KA, Vander Wyk B. Trait-level temporal lobe hypoactivation to social exclusion in unaffected siblings of children and adolescents with autism spectrum disorders. Developmental Cognitive Neuroscience 2015, 13: 75-83. PMID: 26011751, PMCID: PMC4470300, DOI: 10.1016/j.dcn.2015.04.007.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderSpectrum disorderPosterior superior temporal sulcusUnaffected siblingsAtypical neural processingSocial exclusionFunctional magnetic resonance imagingSuperior temporal sulcusAbnormal neural responsesAnterior temporoparietal junctionAnterior cingulate cortexEmotion processingTemporoparietal junctionNegative affectTemporal sulcusNeural processingBrain responsesNeural endophenotypesNeural responsesNeural activationCingulate cortexNeural circuitrySocial experienceASD probandsPowerful feelings
2014
Altered brain connectivity in sagittal craniosynostosis.
Beckett JS, Brooks ED, Lacadie C, Wyk B, Jou RJ, Steinbacher DM, Constable RT, Pelphrey KA, Persing JA. Altered brain connectivity in sagittal craniosynostosis. Journal Of Neurosurgery Pediatrics 2014, 13: 690-8. PMID: 24745341, DOI: 10.3171/2014.3.peds13516.Peer-Reviewed Original ResearchConceptsDiffusion tensor imagingPosterior cingulate cortexCingulate cortexSagittal nonsyndromic craniosynostosisPrefrontal cortexRight posterior cingulate cortexBrodmann area 8Functional connectivity differencesRight middle frontal gyrusWhite matter alterationsAnterior cingulate cortexBrodmann area 7Left ventromedial prefrontal cortexAltered brain connectivityResting-state functional connectivity MRI dataMiddle frontal gyrusRight supramarginal gyrusDefault mode networkIntrinsic connectivity analysesSignificant group differencesAdolescent patientsAltered connectivityNeurocognitive morbidityHigh prevalenceRight parahippocampus
2013
Oxytocin enhances brain function in children with autism
Gordon I, Vander Wyk B, Bennett RH, Cordeaux C, Lucas MV, Eilbott JA, Zagoory-Sharon O, Leckman JF, Feldman R, Pelphrey KA. Oxytocin enhances brain function in children with autism. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: 20953-20958. PMID: 24297883, PMCID: PMC3876263, DOI: 10.1073/pnas.1312857110.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderSuperior temporal sulcusTemporal sulcusOrbitofrontal cortexLeft superior temporal sulcusMiddle frontal gyrusMedial prefrontal cortexRight orbitofrontal cortexSocial attunementSocial judgmentsMeaningful stimuliFrontal gyrusSpectrum disorderBrain activityPrefrontal cortexRight amygdalaSocial functioningFunctional MRIPremotor cortexHedonic evaluationBrain functionJudgmentsCortexChildrenOxytocinSocial, reward, and attention brain networks are involved when online bids for joint attention are met with congruent versus incongruent responses
Gordon I, Eilbott JA, Feldman R, Pelphrey KA, Vander Wyk B. Social, reward, and attention brain networks are involved when online bids for joint attention are met with congruent versus incongruent responses. Social Neuroscience 2013, 8: 544-554. PMID: 24044427, DOI: 10.1080/17470919.2013.832374.Peer-Reviewed Original ResearchConceptsJoint attentionTemporoparietal junctionIncongruent responsesFMRI paradigmFunctional magnetic resonance imaging (fMRI) researchDorsal anterior cingulate cortexNaturalistic fMRI paradigmsHuman social functioningImpact of congruencySocial responsesRight temporoparietal junctionEye gaze patternsRight fusiform gyrusPosterior parietal cortexMagnetic resonance imaging researchAnterior cingulate cortexSocial neuroscienceIncongruent trialsAttention circuitsFusiform gyrusCongruent responsesNeural activationBrain networksRight amygdalaSocial functioning