117-Year-Old's DNA Reveals Clues to Extreme Longevity

Researchers who analyzed samples from Maria Branyas — who died in 2024 at age 117 — found a surprising blend of youthful genetic and physiological markers that may help explain her exceptional lifespan. The study, led by epigeneticists in Barcelona, highlights rare DNA variants, a resilient immune profile, and metabolic features that resemble much younger people.

What the genome and biomarkers revealed

Scientists collected blood, saliva, urine and stool from Branyas before her death and examined her genome, epigenetic patterns, lipid profile, immune cells and gut microbiome. Across multiple layers of analysis, her cells often "behaved" as if they were far younger than her calendar age. That signal came through in DNA-based measures of biological age, gene variants linked to cardiovascular and neural health, and unusually favorable cholesterol and inflammation markers.

Among the notable findings: low levels of systemic inflammation, very low LDL ('bad') cholesterol and triglycerides, and unusually high HDL ('good') cholesterol. Her immune system and gut microbiome carried signatures more typical of much younger cohorts, suggesting a coordinated network of factors that supported healthspan — the years lived in relatively good health.

Maria Branyas on her 117th birthday

Telomeres, cancer risk and a paradox

One surprising observation was a pronounced erosion of telomeres — the protective caps at chromosome ends. Short telomeres are usually associated with higher mortality and cellular aging, so this seems paradoxical. The authors point out a possible explanation: very short-lived cells may limit the opportunity for malignant clones to expand, reducing cancer risk even while contributing to other aging signs. In Branyas’s case, short telomeres did not translate to poor health; instead, they coexisted with biomarkers of resilience.

This underscores a key lesson in aging research: single biomarkers rarely tell the full story. Telomere length, epigenetic age, inflammatory markers, genetic variants and lifestyle factors interact in complex ways to shape individual trajectories. For Branyas, genetics clearly played a role — the team identified rare variants associated with longevity, immune competence and cardiovascular protection — but her active social and physical life and Mediterranean-style diet likely contributed as well.

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Broader scientific context and implications

While the study focuses on a single extraordinary individual, it aligns with larger cohort studies that have found distinct biomarkers among centenarians and supercentenarians. Identifying combinations of protective gene variants, metabolic profiles and microbiome configurations gives researchers candidate biomarkers for healthy aging. These markers could guide future interventions aimed at extending both lifespan and healthspan.

The authors are cautious: results from one person cannot be generalized. They call for larger, well-controlled studies comparing exceptionally long-lived individuals to their shorter-lived peers to validate candidate biomarkers and to tease apart which features are causal rather than coincidental.

Potential strategies informed by the findings

Although direct application to the general population is premature, the work suggests several research avenues: tracking epigenetic age changes, studying immunity and microbiome resilience, and searching for protective genetic variants that could inform drug targets. Translational research might test whether improving lipid profiles, reducing chronic inflammation, or modulating specific immune pathways can shift biological age metrics in middle-aged or older adults.

Younger features and aging features of Maria Branyas.

Expert Insight

"Single-case studies like this are rare windows into human aging," explains Dr. Elena Márquez, a hypothetical geroscience researcher. "They don't give us definitive answers, but they point to mechanisms worth testing in larger groups. Observing youthful epigenetic and immune signatures alongside favorable lipids suggests multi-system coordination — and that's the kind of target we need for therapies that extend healthy years."

Conclusion

Maria Branyas’ biological profile shows that extreme age can coexist with remarkable physiological resilience. Her genome and multi-omic signatures provide researchers with hypotheses about protective mechanisms against age-related disease. The next step is larger studies that can validate which genetic and molecular features truly predict healthy longevity and which are unique to singular life stories.

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