Figure 3
From: Chronic exposure of diesel exhaust particles induces alveolar enlargement in mice
Elastic fibers (resorcin-fuchsin) and collagen fibers (sirius red) in the parenchyma region. Photomicrography of mice lung parenchyma showing elastic fibers (A, B) and collagen fibers (C, D) in saline (A, C) and DEP group (B, D). There were no statistically significant differences among groups in the proportion of elastic (p = 0.08) or collagen fibers (p = 0.208) occupied in the lung parenchyma. Scale bar = 20 μm.