The Study
Intermittent Hypoxia Mimicking Sleep Apnea Induces Systemic and Tissue Specific Epigenetic Changes and p16-Mediated Cellular Senescence Underlying Vascular Dysfunction
This study didn't test people—it tested mice in a lab to see what happens when they breathe air that goes up and down like in sleep apnea. It found that this fake sleep apnea made the mice's blood pressure go up and changed their DNA in ways linked to aging. But we can't say this happens the same way in humans.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
When mice can't breathe well at night (like in sleep apnea), their heart and blood cells get older faster and start acting like damaged 'zombie cells' that cause high blood pressure. Removing these zombie cells fixes the problem.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 520 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — if this works in humans, targeting senescent cells could be a new treatment for heart damage caused by sleep apnea.
- 2IH caused 5,747 DNA methylation changes in the heart and 1,307 in blood.
- 3Epigenetic age spiked at 7 days.
- 4Blood pressure rose significantly.
- 5After removing p16-high cells, blood pressure dropped and blood flow to the heart returned to normal.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Research Square
Year
2026
Authors
Rene Cortese, K. Cataldo, M. Badran, M. Milčiūtė, Juozas Gordevičius, Z. Qiao, J. Eusey, A. Khalyfa, David Gozal
Related Content
Claims (6)
Removing cells that express the p16 protein in mice results in better tissue function and longer life.
Removing cells that express the p16 protein in male mice exposed to intermittent low oxygen conditions reduces high blood pressure and restores normal blood flow to the heart.
In male mice exposed to intermittent low oxygen, DNA methylation changes in the heart and blood cells are largely different, with only 163 positions affected in both tissues, indicating that organs respond to low oxygen with unique epigenetic patterns.
Exposing male mice to intermittent low oxygen causes a temporary increase in biological aging markers in the heart and blood after 7 days, followed by a slowdown in those markers, showing that the effect ends in some tissues but continues in others.
In male mice, repeated low-oxygen exposure increases p16 protein levels in aortic endothelial cells but not in smooth muscle cells, and this increase is associated with impaired blood vessel function.
In male mice, repeated episodes of low oxygen exposure cause measurable changes in DNA methylation patterns in the heart and blood cells, resulting in faster epigenetic aging after 7 days and sustained increases in blood pressure with reduced blood flow to the heart.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.