Karsh J, Vergalla J, Jones E A
Arthritis Rheum. 1979 Feb;22(2):111-3. doi: 10.1002/art.1780220202.
Alpha-1-antitrypsin phenotypes were determined in 37 patients with rheumatoid arthritis and 40 patients with systemic lupus erythematosus. No significant increase in non-MM phenotypes was found. It appears that alpha-1-antitrypsin phenotypes neither predispose to the development nor enhance the severity of the two rheumatic diseases.