Figure 2From: Comparison of acute proton, photon, and low-dose priming effects on genes associated with extracellular matrix and adhesion molecules in the lungsMasson trichrome staining of lung sections exhibits collagen deposition (blue). More abundant collagen is accumulated in alveolar space and at the sites surrounding vascular vessels or bronchioles in samples from Photon, Proton, LDR + Photon, and LDR + Proton groups as compared to the 0 Gy control and LDR samples. B, bronchioles; V, vascular vessels. Magnification × 400, Bar = 20 μm.Back to article page