The midlife cognitive profiles of adults at high risk of late-onset Alzheimer's disease: The PREVENT study
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Journal Title
Alzheimer's and Dementia
ISSN
1552-5260
Publisher
Elsevier
Language
English
Type
Article
This Version
AM
Metadata
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Ritchie, K., Carrière, I., Su, L., O'Brien, J., Lovestone, S., Wells, K., & Ritchie, C. (2017). The midlife cognitive profiles of adults at high risk of late-onset Alzheimer's disease: The PREVENT study. Alzheimer's and Dementia https://doi.org/10.1016/j.jalz.2017.02.008
Abstract
INTRODUCTION: Although biomarker studies of late-onset Alzheimer's disease suggest pathology to be present decades before diagnosis, little is known about cognitive performance at this stage. METHODS: A sample of 210 adults (aged 40-59) of whom 103 have a parent diagnosed with dementia (family history subgroup) underwent computerized cognitive testing. Apolipoprotein E (apoE) status was determined, and 193 subjects had magnetic resonance imaging. Distance from dementia onset was estimated in relation to age of parental diagnosis, and Cardiovascular Risk Factors, Aging, and Incidence of Dementia Risk Scores were calculated. RESULTS: Lower hippocampal volumes (P = .04) were associated with poorer spatial location recall and higher Dementia Risk Scores with poorer visual recognition (P = .0005), and lower brain and hippocampal volume (P < .0001, P = .04, respectively). Family history subgroup participants closer to dementia onset had lower scores on visual working memory (P = .05), whereas those with an APOE ε4 allele performed better on form perception (P = .005). DISCUSSION: Middle-aged adults at risk of dementia show evidence of poorer cognitive performance, principally in visuospatial functions.
Keywords
Alzheimer's disease, Cognition, Diagnosis, MRI, Neuropsychology, Preclinical, Prognosis
Sponsorship
The PREVENT Dementia Program has been financed by a research grant from the UK charity the Alzheimer’s Society and Philanthropic Donations. J.O.B. and S.L. are supported by the NIHR Cambridge Biomedical Research Centre.
Funder references
MEDICAL RESEARCH COUNCIL (MR/M009041/1)
MEDICAL RESEARCH COUNCIL (MR/M024873/1)
Identifiers
External DOI: https://doi.org/10.1016/j.jalz.2017.02.008
This record's URL: https://www.repository.cam.ac.uk/handle/1810/265959
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International, Attribution-NonCommercial-NoDerivatives 4.0 International
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