Gum disease bacterium linked to increased risk of atrial fibrillation by rss feed | May 10, 2025 | News Feeds Tempted to skip the floss? Your heart might thank you if you don't. A new study from Hiroshima University (HU) finds that the gum disease bacterium Porphyromonas gingivalis (P. gingivalis) can slip into the bloodstream and infiltrate the heart. Read Original Copy