Related Experiment Video
Updated: May 10, 2025

Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
Published on: May 22, 2013
Telomere Length and Cognitive Function Among Middle-Aged and Older Participants From Communities Underrepresented in
Lauren W Y McLester-Davis1,2,3, Derek Norton4, Ligia A Papale5
1Native American Center for Health Professions, University of Wisconsin, Madison, WI, USA.
Abstract:
ObjectiveAccelerated biological aging is a plausible and modifiable determinant of dementia burden facing minoritized communities but is not well-studied in these historically underrepresented populations. Our objective was to preliminarily characterize relationships between telomere length and cognitive health among American Indian/Alaska Native (AI/AN) and Black/African American (B/AA) middle-aged and older adults.MethodsThis study included data on telomere length and neuropsychological test performance from 187 participants, enrolled in one of two community-based cognitive aging cohorts and who identified their primary race as AI/AN or B/AA.ResultsNested multivariable regression models revealed preliminary evidence for associations between telomere length and cognitive performance, and these associations were partially independent of chronological age.DiscussionSmall sample size limited estimate precision; however, findings suggest future work on telomere length and cognitive health in underrepresented populations at high risk for dementia is feasible and valuable as a foundation for social and behavioral intervention research.
Related Concept Videos
Cognitive Development During Adulthood
Telomeres and Telomerase
Longitudinal Research
Longitudinal Studies
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...

