A study published in Clinical Epigenetics examined nearly 1,000 participants over several decades to explore how DNA methylation influences blood pressure as people age. DNA methylation is an epigenetic process affected by aging, lifestyle, and environmental factors that regulates gene activity without changing the underlying DNA sequence.

Researchers compared methylation to a "dimmer switch" that can increase or decrease gene expression. Using a newly developed mathematical model, they discovered that the relationship between DNA methylation and blood pressure changes over time. Methylation associated with higher blood pressure in younger adults was linked to lower blood pressure later in life.

The findings suggest that biological processes involved in aging are dynamic rather than fixed, emphasizing the importance of long-term studies. The research also demonstrates the potential of precision medicine by showing how tracking changes in DNA methylation may improve the prediction and prevention of cardiovascular disease. The same approach could also be applied to age-related disorders such as Alzheimer's disease and dementia, providing new insights into the mechanisms of healthy aging.

Source: https://www.unlv.edu/news/release/research-brief-new-math-model-tracks-clinical-link-between-aging-and-blood-pressure