Gum disease pathogens may fuel airway inflammation in COPD A multi-method study links periodontal disease to COPD, from survey data to airway cells and rats, but the genetic evidence was only suggestive. Frontiers in cellular and infection microbiology, 2026 Childhood recurrent parotitis linked to a 28-fold higher hazard of Sjögren's disease In a 30-year Danish cohort, children with recurrent parotitis later had far higher rates of Sjögren's disease and other autoimmune conditions than matched controls. International journal of pediatric otorhinolaryngology, 2026 Paracetamol rewired brainstem pain circuits in rats with pulpitis In rats with tooth pulp inflammation, oral paracetamol changed serotonin fibers, cannabinoid receptors and projection neurons in the brainstem's trigeminal pain relay. Acta odontologica latinoamericana : AOL, 2026