By Vijay Kumar Malesu Reviewed by Susha Cheriyedath, M.Sc. Apr 12 2026 A new laboratory study found that cigarette smoke sharply disrupted lung cell defenses, while e-cigarette vapor showed no significant damage in the same model, highlighting important differences but not settling the question of long-term safety in humans. Study: Tobacco smoke but not e-cigarette vapor induces epithelial barrier disruption, inflammation, and DNA damage in human Calu-3 cells . Image Credit: Antonio Marca /

Tag-uri: DNA