does smoking cigarettes cause copd The pathogenesis of COPD. Cigarette smoke activates macrophages (1), Inflammatory mechanisms in COPD. Cigarette

Importantly, it aligns with our observation that smoking, a known source of systemic DNA damage [19], induces similar hypermethylation at both Polycomb targets and CpG islands (Additional file 3: Fig

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One participant opined that the impact of smoking is less severe on youth compared to older individuals, thus feeling less urgency to quit at present