A1 refers to the protein alpha-1-antitrypsin, which is a protease inhibitor that helps protect the lungs from damage caused by enzymes called proteases. It is particularly important in preventing the destruction of lung tissue in individuals with a genetic deficiency of this protein, known as alpha-1-antitrypsin deficiency (AATD). Individuals with AATD have an increased risk of developing emphysema and chronic obstructive pulmonary disease (COPD). A1 is also known to have anti-inflammatory properties and is being studied for its potential therapeutic use in various inflammatory disorders.

A1 refers to the protein alpha-1-antitrypsin, which is a protease inhibitor that helps protect the lungs from damage caused by enzymes called proteases. It is particularly important in preventing the destruction of lung tissue in individuals with a genetic deficiency of this protein, known as alpha-1-antitrypsin deficiency (AATD). Individuals with AATD have an increased risk of developing emphysema and chronic obstructive pulmonary disease (COPD). A1 is also known to have anti-inflammatory properties and is being studied for its potential therapeutic use in various inflammatory disorders.