Figure 10From: Effects of long-term low-dose oxygen supplementation on the epithelial function, collagen metabolism and interstitial fibrogenesis in the guinea pig lungSections of peripheral parts of the lungs stained with hematoxylin-eosin. Panels A, B, C and D represent pre- and, 72, 96 and 120 hour-exposure to 90% oxygen. Inflammatory cell infiltration was recognized at 72 hours of exposure, and alveolar septal destruction was apparent by 96 hours of exposure. Diffuse alveolar damage was apparent by 120 hours of exposure. Bar = 100 μm.Back to article page