5Dahlen B, Shute J, Howarth P. Immunohistochemical localization of the matrix metalloproteinases MMP-3 and MMP-9 within the airways in asthma. Thorax 1999, 54(7): 590-596.
6Ramesh G, Jindal SK, Ganguly NK, et al. Increased nitric oxide production by neutrophils in bronchial asthma. Eur Respir J, 2001, 17(5):868-871.
7Vignola AM, Bonanno A, Mirabella A, et al. Increased levels of elastase and α 1-antitrypsin in sputum of asthmatic patients. Am J Respir Crit Care Med, 1998, 157: 505-511.
8Voynow JA, Young LR, Wang Y, et al. Neutrophil elastase increases MUC5AC mRNA and protein expression in respiratory epithelial cells.Am J Physiol, 1999, 276: L835-L843.
9Fischer B, Voynow J. Neutrophil elastase induces MUC5AC messenger RNA expression by an oxidant -dependent mechanism. Chest, 2000,117: 317-320.
10Hamilton LM, Torres-Lozano C, Puddicombe SM, et al. The role of the epidermal growth factor receptor in sustaining neutrophil inflammation in severe asthma. Clin Exp Allergy, 2003, 33: 233-240.
