Furthermore, lung tissues were stained with PAS to
examine the mucus hypersecretion and mucus cells hyperplasia
(goblet cells). Mucus hypersecretion and goblet cells
hyperplasia were found in the lungs of the positive control
group mice as compared with the negative control group.
We found that both ginger extracts significantly suppressed
the mucus hypersecretion and goblet cells hyperplasia in the
mice exposed to ovalbumin (Figure 3).