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Author

A. Posis

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2 papers indexed here

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Sep 2026

Gait Speed and Survival in Those With Exceptional Longevity: The LifeAfter90 Study.

BACKGROUND Although gait speed is a well-established predictor of mortality, it is understudied among ethnoracially diverse oldest-old cohorts. We examined the association between gait speed and all-cause mortality in an ethnoracially diverse 90+ population. METHODS We examined the association between gait speed and...

Rifat B. Alam, Hilary L. Colbeth, A. Posis et al. · 0 citations
Open access Aug 2026

Beyond amyloid: Contributions of neuroinflammation, cerebrovascular disease, and neurodegeneration to memory impairment in the oldest‐old, the LifeAfter90 Study

Neuroinflammatory processes may play a central role in promoting mixed pathologies and cognitive impairment in the oldest‐old. We hypothesize that elevated neuroinflammation, indicated by reactive astrocytosis, acts on cerebrovascular disease and separately, on amyloid beta (Aβ) pathology, to promote downstream medial...

Batool M. Rizvi, P. Maillard, A. Posis et al. · 0 citations

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