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Association of Longitudinal Cognitive Decline With Amyloid Burden in Middle-aged and Older Adults

Association of Longitudinal Cognitive Decline With Amyloid Burden in Middle-aged and Older Adults Key PointsQuestionIs there a dose-response relationship between the magnitude of amyloid burden and the rate of cognitive decline among healthy middle-aged and older adults? FindingIn this longitudinal cohort study, healthy adults aged 40 to 89 years were assessed with 18F florbetapir positron emission tomography imaging at baseline and cognitive measures at baseline and 4-year follow-up. Increasing baseline amyloid burden predicted a steeper decline in episodic memory, processing speed, vocabulary, and Mini-Mental State Examination performance. MeaningThe initial magnitude of amyloid deposition in healthy adults may be associated with the rate of future cognitive decline and provides important information that is lost when only dichotomous information (positive/negative) is provided. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA Neurology American Medical Association

Association of Longitudinal Cognitive Decline With Amyloid Burden in Middle-aged and Older Adults

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References (75)

Publisher
American Medical Association
Copyright
Copyright 2017 Farrell ME et al. JAMA Neurology.
ISSN
2168-6149
eISSN
2168-6157
DOI
10.1001/jamaneurol.2017.0892
pmid
28558099
Publisher site
See Article on Publisher Site

Abstract

Key PointsQuestionIs there a dose-response relationship between the magnitude of amyloid burden and the rate of cognitive decline among healthy middle-aged and older adults? FindingIn this longitudinal cohort study, healthy adults aged 40 to 89 years were assessed with 18F florbetapir positron emission tomography imaging at baseline and cognitive measures at baseline and 4-year follow-up. Increasing baseline amyloid burden predicted a steeper decline in episodic memory, processing speed, vocabulary, and Mini-Mental State Examination performance. MeaningThe initial magnitude of amyloid deposition in healthy adults may be associated with the rate of future cognitive decline and provides important information that is lost when only dichotomous information (positive/negative) is provided.

Journal

JAMA NeurologyAmerican Medical Association

Published: Jul 30, 2017

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