21/07/2026
A common bacteria responsible for gum disease can trigger a dangerous buildup of calcium in the heart, new research shows.
New preliminary research presented at the American Heart Association’s Basic Cardiovascular Sciences Scientific Sessions 2026 reveals a startling connection between gum disease and calcific aortic valve stenosis (CAVS), a serious condition that narrows the heart's aortic valve and restricts blood flow.
Scientists discovered that the bacterium Porphyromonas gingivalis, notorious for causing gum inflammation, was significantly more prevalent in diseased human heart valves. By examining human tissue samples and conducting mouse models, the researchers demonstrated that this common mouth microbe triggers a targeted inflammatory response, which actively accelerates calcium accumulation in the heart's vital pathways.
While there are currently no approved medications to halt or reverse the progression of CAVS—often leaving valve replacement surgery as the only viable treatment—this discovery offers a promising new avenue for prevention. In animal models, blocking the specific inflammatory pathway activated by the bacterium or administering preventive antibiotics significantly reduced calcification. Although clinical trials in humans are still ongoing, experts emphasize that maintaining excellent oral hygiene and treating periodontal disease early could be an overlooked but crucial shield against developing severe cardiovascular complications.
source: American Heart Association. (2026). Common Mouth Bacteria May Trigger Dangerous Calcium Buildup in the Heart. AHA Basic Cardiovascular Sciences Scientific Sessions 2026.
