Smokers lung damage ‘lingers even after quitting fags’
Melbourne: Smokers, beware! Lung damage due to puffing can last long even after you kick the butt, a new study has claimed. Researchers at University of Sydney have found that smoking fundamentally alters airway tissue in people with chronic obstructive pulmonary disease (COPD), and even while other aspects of health improve, the lung damage lasts long after a smoker quits.
The primary cause is chronic exposure to air pollution, most often cigarette smoke.
In their study, the researchers found that smoking lays the groundwork for airway thickening and precipitates precancerous changes in cell proliferation that may be self-perpetuating long after cigarette smoke exposure ends.
“We have demonstrated for the first time that the extracellular matrix (ECM) produced by fibroblasts following stimulation with cigarette smoke extract is functionally different than non-exposed ECM, and that the cigarette smoke itself may prime the airways in such a way to create an environment whereby airway remodelling is encouraged,” lead researcher David Krimmer said.