Figure 3. Quercetin inhibits intracellular calcium levels in SP-stimulated LAD mast cells.

Cells were loaded with Fura-2 AM (30 nM, 20 min) and then pre-incubated with flavonoids (100 µM, 30 min). Immediately after SP addition (2 µM), Fura-2 AM fluorescence was detected for 20 min.