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Heart Health Tied to Brain Shrinkage in Alzheimer's Risk
10 Aug
Summary
- Reduced cardiac function linked to faster brain shrinkage.
- APOE-e4 gene carriers showed accelerated brain aging.
- Study suggests heart health impacts brain aging significantly.
A recent study has revealed a significant connection between heart health and the rate of brain shrinkage in individuals genetically predisposed to Alzheimer's disease. Researchers found that people carrying the APOE-ε4 gene variant, a known risk factor for Alzheimer's, experienced accelerated brain aging if their hearts were pumping blood less effectively.
This 11-year study, involving over 750 participants averaging 67 years old, assessed cardiac output at its outset. MRI scans later showed that APOE-ε4 carriers with lower cardiac output exhibited more rapid brain volume loss. This suggests that compromised cardiac function may deprive vulnerable brain cells of essential oxygen and nutrients.
Lead researcher Dr. Elizabeth Moore highlighted that these findings underscore the importance of a precision medicine approach. Tailoring prevention and screening efforts by considering individual genetic information, like the APOE-ε4 status, could be crucial for future Alzheimer's disease interventions.
