Figure 7.

Effect of baicalin on 2,4,6-trinitrobenzene sulfonic acid-induced related protein expression in colon tissues by immunohistochemistry assay. Red arrows show the protein expression. (A) transforming growth factor beta-1 protein expression, (B) Bax protein expression, and (c) Bcl-2 protein expression. a: Control blank group; b: Model group (2,4,6-trinitrobenzene sulfonic acid); c: mesalazine group (100 mg/kg); d: High-dose baicalin (120 mg/kg); e: Medium-dose baicalin (60 mg/kg) and f: Low-dose baicalin (30 mg/kg) (for interpretation of the references to color in this figure legend, the reader is referred to the web version of this article)