Fig. 4.

Microscopic presentation of acetic acid–induced colitis in rats stained by hematoxylin and eosin (light microscopy, 40 X): (A) normal colon without any treatments, mucus layer, and crypts are normal and leucocyte infiltration is absent; (B) colitis in control group without any treatments, mucosal and submucosal inflammation, as well as crypt damage and leucocyte infiltration are evident; (C) colitis in control group treated with saline, mucosal and submucosal inflammation, as well as crypt damage and leucocyte infiltration are evident dexamethasone-treated colitis; (D) Sulfasalazine treated colitis. (E) Combination of basil seeds and gum Arabic treated colitis. White arrow: sub mucosa, Red arrow: normal mucusa layer, Black arrow: edema, Blue arrow: inflammatory cell infiltration.