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Cognitive subtypes of probable Alzheimer's disease robustly identified in four cohorts
- Source :
- Alzheimer's and Dementia, 13(11), 1226-1236. Elsevier, Alzheimer's and dementia 13(11), 1226-1236 (2017). doi:10.1016/j.jalz.2017.03.002, Scheltens, N M E, Tijms, B M, Koene, T, Barkhof, F, Teunissen, C E, Wolfsgruber, S, Wagner, M, Kornhuber, J, Peters, O, Cohn-Sheehy, B I, Rabinovici, G D, Miller, B L, Kramer, J H, Scheltens, P, van der Flier, W M, Alzheimer's Disease Neuroimaging Initiative, German Dementia Competence Network, University of California San Francisco Memory and Aging Center & Amsterdam Dementia Cohort 2017, ' Cognitive subtypes of probable Alzheimer's disease robustly identified in four cohorts ', Alzheimer's and Dementia, vol. 13, no. 11, pp. 1226-1236 . https://doi.org/10.1016/j.jalz.2017.03.002
- Publication Year :
- 2016
-
Abstract
- Patients with Alzheimer's disease (AD) show heterogeneity in profile of cognitive impairment. We aimed to identify cognitive subtypes in four large AD cohorts using a data-driven clustering approach.We included probable AD dementia patients from the Amsterdam Dementia Cohort (n = 496), Alzheimer's Disease Neuroimaging Initiative (n = 376), German Dementia Competence Network (n = 521), and University of California, San Francisco (n = 589). Neuropsychological data were clustered using nonnegative matrix factorization. We explored clinical and neurobiological characteristics of identified clusters.In each cohort, a two-clusters solution best fitted the data (cophenetic correlation0.9): one cluster was memory-impaired and the other relatively memory spared. Pooled analyses showed that the memory-spared clusters (29%-52% of patients) were younger, more often apolipoprotein E (APOE) ɛ4 negative, and had more severe posterior atrophy compared with the memory-impaired clusters (all P .05).We could identify two robust cognitive clusters in four independent large cohorts with distinct clinical characteristics.Alzheimer's disease (AD) is a heterogeneous disorder. We identified two cognitive AD subtypes in four cohorts with a data-driven approach. Nonamnestic AD is associated with distinct neurobiological characteristics.
- Subjects :
- 0301 basic medicine
Apolipoprotein E
Oncology
Male
Epidemiology
Denmark
Apolipoprotein E4
genetics [Alzheimer Disease]
cerebrospinal fluid [Amyloid beta-Peptides]
Disease
Neuropsychological Tests
diagnostic imaging [Cognition Disorders]
Cohort Studies
0302 clinical medicine
Germany
Cluster Analysis
genetics [Apolipoprotein E4]
Aged, 80 and over
Health Policy
Neuropsychology
complications [Alzheimer Disease]
Cognition
Middle Aged
amyloid beta-protein (1-42)
classification [Cognition Disorders]
Magnetic Resonance Imaging
cerebrospinal fluid [Alzheimer Disease]
Psychiatry and Mental health
Cohort
Disease Progression
Female
Psychology
medicine.medical_specialty
Article
03 medical and health sciences
Cellular and Molecular Neuroscience
Atrophy
Developmental Neuroscience
Neuroimaging
Alzheimer Disease
Internal medicine
medicine
Dementia
Humans
ddc:610
cerebrospinal fluid [Peptide Fragments]
Psychiatry
Aged
Amyloid beta-Peptides
etiology [Cognition Disorders]
medicine.disease
Peptide Fragments
United States
030104 developmental biology
Neurology (clinical)
Geriatrics and Gerontology
Cognition Disorders
Mental Status Schedule
diagnostic imaging [Alzheimer Disease]
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 15525279 and 15525260
- Volume :
- 13
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Alzheimer'sdementia : the journal of the Alzheimer's AssociationReferences
- Accession number :
- edsair.doi.dedup.....93dbe0a5c94afd251057e517b8f58553