Fig. 6From: Research article expression of surfactant protein-A and D, and CD9 in lungs of 1 and 30 day old foalsImmunohistology for SP-D protein: The SP-D staining is observed in the alveolar septa (red arrows), vascular endothelium (arrows) of blood vessels (BV; black arrows), and bronchiolar epithelium (BR; black arrows) of one day old (A, C, E) and 30 days old (B, D, F) foals. The inset in B shows staining (black arrow) in a pulmonary intravascular macrophage and the inset in D shows staining ( black arrow) in type II alveolar epithelial cell. Bar = 100 μm (A, C, D) Bar = 20 μm (B, E, F)Back to article page