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    Neighborhood environment associations with cognitive function and structural brain measures in older African Americans by Dima L. Chaar, Le Tu, Kari Moore, Jiacong Du, Lauren A Opsasnick, Scott M Ratliff, Thomas H Mosley, Sharon L. R. Kardia, Wei Zhao, Xiang Zhou, Ana V Diez Roux, Fazlay S Faruque, Kenneth R Butler, Jennifer A Smith

    Published 2025-01-01
    “…Methods In this study, we examined whether DNA methylation in peripheral blood leukocytes mediates the relationship between neighborhood characteristics and cognitive function (N = 542) or WMH (N = 466) in older African American (AA) participants without preliminary evidence of dementia from the Genetic Epidemiology Network of Arteriopathy (GENOA). Results For a 1-mile buffer around a participant’s residence, each additional fast food destination or unfavorable food store with alcohol per square mile was nominally associated with a 0.05 (95%CI: 0.01, 0.09) and a 0.04 (0.00, 0.08) second improvement in visual conceptual tracking score, respectively. …”
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