Gum Disease Bacteria May Drive Heart Valve Calcification, Raising CAVS Risk in Early 2026 Study
Updated
Updated · ScienceDaily · Jul 13
Gum Disease Bacteria May Drive Heart Valve Calcification, Raising CAVS Risk in Early 2026 Study
3 articles · Updated · ScienceDaily · Jul 13
Summary
Porphyromonas gingivalis showed one of the biggest increases in calcified aortic valves from CAVS patients, pointing researchers to a possible new driver of the disease.
Mouse experiments found repeated exposure to live P. gingivalis led to bacterial buildup in the aortic valve, more calcium deposits and aortic stenosis-like symptoms; preventive antibiotics reduced those effects.
IL-1β appeared central to the mechanism: the bacterium activated the inflammatory pathway, and genetically removing IL-1β sharply reduced valve calcification and symptoms even when P. gingivalis was present.
CAVS has no proven drug treatment and severe cases usually require valve replacement, so the findings suggest gum disease prevention could become part of future risk-reduction strategies.
The results were presented July 13 at an American Heart Association meeting in Boston and remain preliminary, with human clinical studies already underway.