Objective To observe the curative effects of Changankang Capsules (CC) on the acetic acid-induced ulcerative colonitis in the rat,and to investigate the mechanisms of the effects. Methods The rat model of ulcerative colonitis was created by clysis with 6% glacial acetic acid solution. The model rats were treated with CC for 6 days successively,and on the 7 th day during the treatment course,the rat gross colonic tissue and the state of histopathological lesion of the rat colonic tissue were observed,and ...