Dataset Information
Influence of amyloid and APOE on cognitive performance in a late middle-aged cohort.
Ontology highlight
ABSTRACT: Introduction
Few studies have examined the effects of amyloid and apolipoprotein E (APOE) genotype on cognition among middle-aged individuals.Methods
We included 464 cognitively normal, test-naïve, participants with Pittsburgh compound B positron emission tomography amyloid imaging, mean age of 62.7 (range, 51-71 years), enrolled in the Mayo Clinic Study of Aging. Participants completed multiple cognitive assessments, including a standard neuropsychological battery and the CogState computerized battery, over 30 months of follow-up. Linear mixed models were used to examine the effects of amyloid and APOE genotype on baseline cognition and cognitive decline.Results
Elevated amyloid was not associated with tests of episodic memory but did predict declines on tests of executive function. APOE genotype was not associated with cognition. Among APOE ɛ4 noncarriers, higher amyloid was predictive of decline on tests of executive function and on one episodic memory test.Discussion
Elevated amyloidosis and APOE genotype do not appear to exert a dramatic influence on cognition in middle age.
SUBMITTER: Mielke MM
PROVIDER: S-EPMC4850495 | biostudies-literature | 2016 Mar
REPOSITORIES: biostudies-literature
Publications
Influence of amyloid and APOE on cognitive performance in a late middle-aged cohort.
Alzheimer's & dementia : the journal of the Alzheimer's Association 20151119 3
<h4>Introduction</h4>Few studies have examined the effects of amyloid and apolipoprotein E (APOE) genotype on cognition among middle-aged individuals.<h4>Methods</h4>We included 464 cognitively normal, test-naïve, participants with Pittsburgh compound B positron emission tomography amyloid imaging, mean age of 62.7 (range, 51-71 years), enrolled in the Mayo Clinic Study of Aging. Participants completed multiple cognitive assessments, including a standard neuropsychological battery and the CogSta ...[more]