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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
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Related Experiment Video

Updated: May 13, 2025

Application of Granger Causality Analysis of the Directed Functional Connection in Alzheimer's Disease and Mild Cognitive Impairment
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Bridging Social Capital Potential and Alzheimer's Disease Mortality Rates.

Adam R Roth1,2, Ashley F Railey1,2, Siyun Peng2,3

  • 1Oklahoma State University, Stillwater, OK, USA.

Socius : Sociological Research for a Dynamic World
|April 16, 2025
PubMed
Summary
This summary is machine-generated.

Geographic disparities in Alzheimer's disease mortality are linked to community structures. Opportunities for social mixing, like civic organizations, reduce Alzheimer's disease (AD) deaths by fostering bridging social capital.

Keywords:
Alzheimer’s diseasediversityopportunity structuresrace/ethnicitysocial capital

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Area of Science:

  • Gerontology
  • Sociology
  • Public Health

Background:

  • Geographic Alzheimer's disease (AD) disparities are linked to sociodemographics and unequal access to protective opportunities.
  • Limited research explores how social dynamics, enabled by these opportunities, influence AD mortality.

Purpose of the Study:

  • To evaluate how ethnoracial diversity and opportunity structures jointly facilitate bridging social capital.
  • To test the hypothesis that bridging social capital predicts lower Alzheimer's disease mortality rates.

Main Methods:

  • Population-level analysis of Alzheimer's disease mortality records from 2,469 U.S. counties.
  • Examined the interplay between sociodemographic composition, opportunity structures, and bridging social capital potential.

Main Results:

  • Counties with sociodemographic composition and opportunity structures fostering bridging capital potential showed lower AD mortality rates.
  • This association was consistent in workhoods and civic organizations but inconsistent in residential neighborhoods.
  • Structural factors enabling social mixing are crucial.

Conclusions:

  • Community structures and opportunities for social mixing significantly impact Alzheimer's disease (AD) mortality.
  • Bridging social capital, fostered by conducive environments, acts as a protective factor against AD.
  • Policy and urban planning should consider social capital development to mitigate geographic AD disparities.