Certain blood molecules found in centenarians may be linked to exceptional longevity and health, according to a new study published in March in the journal GeroScience.
Researchers at Boston University Chobanian & Avedisian School of Medicine discovered that individuals who live past the age of 100 exhibit a unique metabolic profile in their blood, differing from the typical patterns observed during aging. This distinct profile is associated with a reduced risk of death, suggesting potential biomarkers for healthy aging.
The study, which analyzed blood samples from 213 participants – including 70 centenarians, their children, and a comparison group – utilized a method called untargeted metabolomics. This technique allowed researchers to measure the levels of approximately 1,495 different compounds in the blood serum.
The analysis revealed that centenarians have different levels of certain metabolites compared to younger individuals. These metabolic differences could offer insights into the biological mechanisms that support a long and healthy life. Understanding these mechanisms is crucial as the global population ages and the demand for strategies to promote healthy longevity increases.
Even as genetics play a role – potentially contributing up to 50% – lifestyle factors are also significant. Centenarians often benefit from a diet rich in plant-based foods, regular physical activity, and strong social connections. Even though these individuals frequently have specific characteristics of their immune systems, the metabolic signals of healthy aging are not yet fully understood.
The New England Centenarian Study, one of the largest studies dedicated to longevity in North America, provided the samples used in this research. Researchers compared metabolite levels between the groups to identify molecules that change with chronological age. Further research is needed to fully elucidate these findings and their potential applications for improving healthspan.
