Figure 4. Cromolyn sodium reduces cardiac mast cell density and size, 28 days after EAM induction.
Representative sections of the heart treated with cromolyn sodium (a) or saline (b) using a monoclonal antibody to mast-cell tryptase (brown). Arrows indicate mast cells containing tryptase. Analysis based on average density and size shows that cromolyn sodium treatment significantly reduced cardiac mast cell density (c) and size (d).