Газовый состав выдыхаемого воздуха и биохимические показатели мокроты при хронической обструктивной болезни легких

An integral parameter of total gas composition of exhaled air during chronic obstructive pulmonary disease is interconnected with an obstruction progression, development of oxidizing stress, and an increase in elastase/trypsin-like proteinase activity on a background of deficiency of catalase and alpha 1-proteinase inhibitor of induced sputum of patients.