Role of moxibustion in inflammatory responses during treatment of rat ulcerative colitis

Figure 3 Histological features and morphology of colonic tissue. A: Histological analysis of colonic tissue sections stained with HE. The finer details of the epithelial cells can be seen clearly; B: Morphology of colonic mucosal epithelia observed by electron microscopy. From left to right in both A and B: Blank control (BC), waiting list control (WLC), 3-min moxibustion (3M), 6-min moxibustion (6M) and 9-min moxibustion (9M) groups. Treatment in the 9M group gave the best results, which were close to that of the normal rats without ulcerative colitis. Black arrow: Representative features of colonic tissue (magnification: A: 400 ×; B: 2000 ×).