Figure 5From: Titanium dioxide particle – induced goblet cell hyperplasia : association with mast cells and IL-13The correlation of the IL-13(+) mast cells with Muc5ac(+) epithelial cells and the IL-13 concentration. The percentage of IL-13 (+) mast cells was correlated with concentration of IL-13 in BAL fluid (r = 0.782, p < 0.01) and the percentage of Muc5ac (+) cells (r = 0.604, p < 0.05) (open circle; sham, open square; TiO2 – instilled rats).Back to article page