Comparative morphological characteristics of bronchial mucosa in patients with chronic obstructive bronchitis and bronchial asthma

: The material for histoultrastructural study was biopsies obtained by fibrobronchoscopy from 12 patients with endogenic bronchial asthma (BA) and 4 patients with chronic obstructive bronchitis (COB). The principal periods of affection in these diseases, the role of bronchial epithelium, effector cells of inflammation, nervous elements, smooth muscle cells, microcirculatory disturbances in patho- and morphogenesis of chronic obstructive pulmonary lesions are determined. The results indicate that BA develops due to disturbances of adaptive mechanisms being in some cases the issue of COB progression.