Patterns of multi-domain cognitive aging in participants of the Long Life Family Study.

GeroScience
Paola SebastianiThomas T Perls

Abstract

Maintaining good cognitive function at older age is important, but our knowledge of patterns and predictors of cognitive aging is still limited. We used Bayesian model-based clustering to group 5064 participants of the Long Life Family Study (ages 49-110 years) into clusters characterized by distinct trajectories of cognitive change in the domains of episodic memory, attention, processing speed, and verbal fluency. For each domain, we identified 4 or 5 large clusters with representative patterns of change ranging from rapid decline to exceptionally slow change. We annotated the clusters by their correlation with genetic and molecular biomarkers, non-genetic risk factors, medical history, and other markers of aging to discover correlates of cognitive changes and neuroprotection. The annotation analysis discovered both predictors of multi-domain cognitive change such as gait speed and predictors of domain-specific cognitive change such as IL6 and NTproBNP that correlate only with change of processing speed or APOE genotypes that correlate only with change of processing speed and logical memory. These patterns also suggest that cognitive decline starts at young age and that maintaining good physical function correlates with slower...Continue Reading

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Citations

Nov 21, 2020·Journal of Alzheimer's Disease : JAD·Mengtian DuPaola Sebastiani
Jul 6, 2021·Journal of Alzheimer's Disease : JAD·Stacy L AndersenUNKNOWN Long Life Family Study

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Methods Mentioned

BETA
coronary artery bypass

Software Mentioned

RStudio
R package circlize

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