Genetic Risk and Cognitive Performance in Older Canadians
Author Information
Author(s): Hopper Shawna, Barha Cindy, DeMarco Mari, Cosco Theodore, Wister Andrew, Best John
Primary Institution: Simon Fraser University
Hypothesis
Does the APOE e4 allele interact with modifiable factors to predict cognitive performance?
Conclusion
APOE e4 carriers show greater reductions in cognitive performance, but e4 status does not significantly alter the relationship between modifiable risk factors and cognitive decline.
Supporting Evidence
- APOE e4 carriers show greater reductions in cognitive performance as age increases.
- Physical activity and composite risk factors were associated with cognitive performance.
Takeaway
Older people with a specific gene (APOE e4) tend to have worse memory, but things like exercise and health habits don't change that much.
Methodology
The study analyzed cognitive outcomes in participants genotyped for the APOE e4 allele, examining interactions with physical activity and a composite risk score.
Limitations
The study may have limitations related to the generalizability of findings and the potential for residual confounding.
Participant Demographics
Participants were aged 45 to 86 years, with 24% being APOE e4 carriers.
Statistical Information
P-Value
<.001 to .01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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