Dana E Greenia

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BACKGROUND The goal of this study was to examine cross-sectional and longitudinal associations between cognitive performance and beta amyloid (Aβ) load determined by florbetapir F18 positron emission tomography (PET) in nondemented oldest-old. METHODS Thirteen nondemented (normal or cognitively impaired nondemented) participants (median age, 94.2 years)(More)
Objective to explore the relationship between risk of falling at age 90+ and prior physical activity at age 60-70s. Design population-based cohort study (The 90+ Study). Setting California retirement community. Participants of 1596 cohort members, 1536 had both falls and prior activity data. Mean age = 94 years; 78% female; 99% Caucasian. Methods(More)
Aging is known to have deleterious effects on cerebral white matter, yet little is known about these white matter alterations in advanced age. In this study, 94 oldest-old adults without dementia (90-103 years) underwent diffusion tensor imaging to assess relationships between chronological age and multiple measures of integrity in 18 white matter regions(More)
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