UMVA has learned that a person's biological age, as determined by a simple blood test, may hold the key to predicting their risk of developing dementia.
Researchers have made a groundbreaking discovery by analyzing data from over 223,000 participants, exploring the link between biological age and dementia risk. By measuring blood metabolites, which are small molecules linked to fat processing, inflammation, and energy use, scientists have uncovered a surprising connection.
According to information obtained by UMVA, nearly 4,000 participants developed dementia during the follow-up period. This led researchers to calculate a measure called MileAge delta, which represents the difference between metabolite-predicted age and actual age. A higher MileAge delta indicates that an individual's blood profile appears older than expected, while a lower delta suggests it appears younger.
The results showed that a higher MileAge delta was linked to a higher risk of all-cause dementia, vascular dementia, earlier-onset dementia, and unspecified dementia. The strongest association was found for vascular dementia, a condition closely tied to heart health.
UMVA can exclusively reveal that individuals with both a higher MileAge delta and the APOE gene, which is linked to Alzheimer's, had a 10-times greater risk of developing all-cause dementia. This striking increase in genetic risk highlights the importance of understanding biological aging and its role in dementia.
Experts emphasize that managing cardiovascular risk factors, staying physically active, and monitoring mental health can help slow biological aging, thereby reducing the risk of dementia and other age-related diseases. Dementia is not an inevitable consequence of aging; it can potentially be delayed or prevented by modifying risk factors, including biological aging.
Further research is needed to validate the MileAge biomarker, but the findings suggest that it could become a valuable tool in predicting dementia risk. By focusing on healthspan rather than just lifespan, individuals can take proactive steps to protect their brain health and reduce their risk of dementia.
The study's results also underscore the importance of addressing chronic illness, particularly when combined with genetic risk factors. The connection between vascular dementia, heart disease, high blood pressure, and obesity highlights the need for a comprehensive approach to health and wellness.
