Figure 6

Effects of individual herb treatment on the release of IL-4 and histamine in P815 mast cells. Compound 48/80 (C48/80) was used to activate the P815 mast cells as a positive control, and cromolyn sodium was used to stabilize the mast cells as a negative control. The effect of “Individual herb + C48/80” or “cromolyn sodium + C48/80” on the release of (A) IL-4 and (B) histamine in P815 mast cells was examined. **P <0.01 (compared to Compound 48/80 treatment).