A subcategory of chronic obstructive pulmonary disease (COPD). It occurs in people who smoke and suffer from chronic bronchitis. It is characterized by inflation of the alveoli, alveolar wall damage, and reduction in the number of alveoli, resulting in difficulty breathing. (Experimental Factor Ontology, EFO_0000464)
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Genes
16 genes associated with the disease emphysema in GWAS and other genetic association datasets from the GAD Gene-Disease Associations dataset.
