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1-Antitrypsin Deficiency
* From the Department of Medicine (Drs. Stockley, Hill, and Hill), Queen Elizabeth Hospital, Birmingham B15 2TH, UK; and the University of Utah (Dr. Campbell), Salt Lake City, UT.
Correspondence to: Robert A. Stockley, DSc, MD, Department of Medicine, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
Neutrophil elastase is capable of generating many of the features
of chronic bronchial disease. In patients with COPD, airways
inflammation with neutrophil recruitment and elastase release is
positively correlated with colonizing bacterial load in the stable
clinical state (p < 0.0005). In addition,
1-antitrypsin deficiency is associated with a greater
neutrophil load, higher elastase activity, leukotriene-B4
concentration, and serum protein leak than matched patients without
deficiency (p < 0.005). These data confirm an effect of bronchial
colonization on airways inflammation in COPD and indicate the role of
1-antitrypsin in its modulation.
Key Words:
1-antitrypsin deficiency bacteria COPD inflammation
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