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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Public Health.

Priya Chatterjee1, Jonas S Sundarakumar1, Thomas Gregor Issac1

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Summary
This summary is machine-generated.

High total cholesterol is linked to faster memory decline in rural Indian adults. Cholesterol-lowering drugs showed mixed cognitive effects in urban dwellers, warranting further study in diverse populations.

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Area of Science:

  • Neuroscience
  • Gerontology
  • Public Health

Background:

  • Abnormal lipid levels in midlife correlate with cognitive decline and dementia risk.
  • This association is under-researched in the Indian population.

Purpose of the Study:

  • To investigate the relationship between lipid profiles and cognitive performance in Indian adults.
  • To examine the impact of cholesterol-lowering medication on cognition in an Indian cohort.

Main Methods:

  • Longitudinal analysis of two Indian cohort studies (CBR-SANSCOG and CBR-TLSA) with participants aged ≥45.
  • Serum lipid profiles and cognitive function (using COGNITO battery) were assessed at baseline and follow-up.
  • Multiple linear regression models analyzed associations between lipids, cognitive change, and medication use.

Main Results:

  • Higher total cholesterol was associated with steeper memory decline in the rural cohort.
  • No direct lipid-cognitive association was found in the urban cohort.
  • Cholesterol-lowering medication use in the urban cohort correlated with slower decline in language and memory but faster decline in visual attention.

Conclusions:

  • Elevated total cholesterol is linked to accelerated memory decline in rural Indian adults.
  • Cholesterol-lowering medication demonstrated a complex, mixed effect on cognitive functions in urban Indians.
  • Further research is needed on lipid abnormalities and lipid-lowering treatments' effects on cognitive trajectories in diverse populations.