Therapeutic efficacy of the Qing Dai in patients with intractable ulcerative colitis

Figure 1 The clinical activity index score and endoscopic Matts grade before and after Qing Dai initiation. A: The score markedly improved from 8.3 ± 2.4 to 2.4 ± 3.4 (mean ± SD; t-test, P < 0.001) after the initiation of Qing Dai. The line plotted in gray shows the average; B: The Matts grade significantly improved from 3.4 ± 0.5 to 2.2 ± 0.8 (mean ± SD; t-test, P = 0.02) after the initiation of Qing Dai treatment. The line plotted in gray shows the average.

Figure 2 Endoscopic finding before and after treatment. A: Before the initiation of Qing Dai, endoscopic examination showed severe ulcers and erosions in the rectum; B: After 3 mo of Qing Dai treatment, the mucosal damage completely disappeared.

Figure 3 Electron spin resonance of Qing Dai. Representative electron spin resonance spectra of CYPMPO-OH (for hydroxyl radical determination) obtained by the addition of solvent control or an ethanol extract of Qing Dai at a concentration of 25 μg/mL. The test was repeated in five independent trials, and a representative result is presented.