Fig. 1
From: Acute airway inflammation following controlled biodiesel exhaust exposure in healthy subjects
Immunohistochemistry of GMA embedded bronchial mucosal biopsies. BD100 exhaust exposure caused increased cell influx and adhesion molecule expression, compared to filtered air. Upper panel shows neutrophil elastase staining, upper left photo post air exposure and upper right post BD100 exhaust exposure. Middle panel shows mast cell tryptase staining after air (middle left) and BD100 exhaust exposure (middle right). Lower panel shows p-selectin adhesion molecule endothelial staining after air (lower left) and BD100 exhaust exposure (lower right). Photos in the upper and middle panels (cell stainings) have been taken at × 40 magnification and the scale bar represents 50 μm. Photos in the lower panel (adhesion molecule expression) have been taken at × 20 magnification and the scale bar represents 100 μm