Fig. 1. Effect of sodium butyrate treatment on mucin protein production in LS174T cells.

(A) Cells were treated with sodium butyrate at final concentrations of 0, 3, 6 and 9 mM. Mucin protein contents were measured by enzyme-linked immunosorbent assay. Values are expressed as mean ± SEM. Means without a common letter differ, P < 0.05. Con, control. (B) Periodic acid-Schiff staining of cells treated with sodium butyrate at final concentrations of 0 (I), 3 (II), 6 (III), and 9 mM (IV).