Pulmonary emphysema associated with alpha-1-proteinase inhibitor deficiency

Pulmonary emphysema associated with alpha-1-proteinase inhibitor deficiency is a hereditary form of chronic obstructive pulmonary disease affecting the respiratory system, typically presenting in early-to-mid adulthood

Pulmonary emphysema associated with alpha-1-proteinase inhibitor deficiency is a hereditary form of chronic obstructive pulmonary disease affecting the respiratory system, typically presenting in early-to-mid adulthood

Pulmonary emphysema associated with alpha-1-proteinase inhibitor deficiency is a hereditary form of chronic obstructive pulmonary disease affecting the respiratory system, typically presenting in early-to-mid adulthood

It is caused by an inherited lack or dysfunction of alpha-1-proteinase inhibitor (also known as alpha-1-antitrypsin), a protective serine protease inhibitor synthesized by the liver

It is caused by an inherited lack or dysfunction of alpha-1-proteinase inhibitor (also known as alpha-1-antitrypsin), a protective serine protease inhibitor synthesized by the liver

This deficiency creates a biochemical protease-antiprotease imbalance, leaving neutrophil elastase unchecked to degrade lung elastin and break down alveolar septa Clinically, this leads to progressive airflow obstruction, hyperinflation, and airspace enlargement, characteristically displaying a panacinar pattern with lower-lobe predilection that is significantly exacerbated by cigarette smoke exposure

This deficiency creates a biochemical protease-antiprotease imbalance, leaving neutrophil elastase unchecked to degrade lung elastin and break down alveolar septa

Clinically, this leads to progressive airflow obstruction, hyperinflation, and airspace enlargement, characteristically displaying a panacinar pattern with lower-lobe predilection that is significantly exacerbated by cigarette smoke exposure