Research Article

Biochanin A, a Phytoestrogenic Isoflavone with Selective Inhibition of Phosphodiesterase 4, Suppresses Ovalbumin-Induced Airway Hyperresponsiveness

Figure 2

Effects of biochanin A (30~100 μmol/kg, p.o.) on (a) and (b) in sensitized mice receiving aerosolized methacholine (MCh, 0.78~25 mg/mL) 2 days after primary allergen challenge. ## , and ### , compared to the nonchallenged group. *** , compared to the control (vehicle) group. The number of mice in each group was 10. PBS: phosphate-buffered saline.
635058.fig.002a
(a)
635058.fig.002b
(b)