Gum disease linked to hidden heart valve risk
New research finds a connection between gum disease and heart valve calcification.
1Link between gum disease and heart health
New research suggests that bacteria causing gum disease may lead to calcium buildup in the heart's aortic valve, potentially causing calcific aortic valve stenosis (CAVS), a serious health condition.
2Research details
The study was presented at the American Heart Association's Basic Cardiovascular Sciences Scientific Sessions 2026 in Boston. CAVS occurs when the aortic valve thickens and calcifies, obstructing blood flow.
3Bacterial mechanism
Researchers investigated the role of Porphyromonas gingivalis, a bacterium linked to periodontal disease, in CAVS development. This bacterium was significantly present in heart valve tissue and may contribute to calcification.
4Mouse experiments
Experiments on mice exposed to P. gingivalis showed calcium buildup and stenosis symptoms in the aortic valve. Antibiotic treatment reduced these effects.
5Inflammation mechanism
Researchers found that P. gingivalis activates the inflammation-promoting protein IL-1β. Genetically deleting this protein significantly reduced valve calcification and disease symptoms.
6Importance and future
These findings highlight the importance of gum health for heart health. Researchers have launched clinical studies to confirm the link between periodontal disease and CAVS in humans.