Figure 2
Statistical data for morphometric analysis of lungs after hyperoxia. Control (normoxia) – blue line, hyperoxia – red line. A. Average number of airspaces falling on a 3.63 mm line drawn across the lung image, representing the average number of alveoli. B. Mean linear intercept, representing the average size of alveoli and alveolar ducts in 1D. C. Tissue area per lung area, representing the average amount of tissue on the area of lung section image. D. Average number of secondary septa per 1 mm2 of lung tissue area on the lung section image. E. Average ratio of the area stained positively for elastin to lung tissue area. The differences between normoxia and hyperoxia values were calculated using a general linear model (SPSS). P < 0.05 is marked as one asterisk, and P < 0.01 is marked as two asterisks. Error bars indicate SEM, n = 4-6. Plot interactions are described in the text.