Vaping makes lung bacteria more harmful and cause more inflammation E cigarettes alter inflammatory state of brain, heart, lungs and colon University of California Electronic Cigarettes Induce Mitochondrial DNA Damage and Trigger TLR9 (Toll Like Receptor 9) Mediated Atherosclerosis Arteriosclerosis, Thrombosis, and Vascular Biology Vaping causes restricted airways and scarred lung tissue, study finds. Vaping propylene glycol and vegetable glycerine may lead to lung inflammation Acute effects of cigarette smoke on inflammation and oxidative stress: a review Thorax