Effects of probiotic on intestinal mucosa of patients with ulcerative colitis

Hai-Hong Cui, Cun-Long Chen, Ji-De Wang, Yu-Jie Yang, Yong Cun, Jin-Bao Wu, Yu-Hu Liu, Han-Lei Dan, Yan-Ting Jian, Xue-Qing Chen
World Journal of Gastroenterology: WJG 2004 May 15, 10 (10): 1521-5

AIM: To investigate the effects of probiotic on intestinal mucosae of patients with ulcerative colitis (UC), and to evaluate the role of probiotic in preventing the relapse of UC.

METHODS: Thirty patients received treatment with sulphasalazine (SASP) and glucocorticoid and then were randomly administered bifid triple viable capsule (BIFICO) (1.26 g/d), or an identical placebo (starch) for 8 wk. Fecal samples were collected for stool culture 2 wk before and after the randomized treatments. The patients were evaluated clinically, endoscopically and histologically after 2 mo of treatment or in case of relapse of UC. p65 and IkappaB expressions were determined by Western blot analysis. DNA-binding activity of NF-kappaB in colonic nuclear extracts was detected by electrophoretic mobility shift assay (EMSA). mRNA expressions of cytokines were identified by semi-quantitative assay, reverse transcriptase- polymerase chain reaction (RT-PCR).

RESULTS: Three patients (20%) in the BIFICO group had relapses during 2-mo follow-up period, compared with 14 (93.3%) in placebo group (P<0.01). The concentration of fecal lactobacilli, bifidobacteria was significantly increased in BIFICO-treated group only (P<0.01). The expressions of NF-kappaB p65 and DNA binding activity of NF-kappaB were significantly attenuated in the treatment group than that in control (P<0.05). The mRNA expression of anti-inflammatory cytokines was elevated in comparison with the control group.

CONCLUSION: The probiotic could impede the activation of NF-kappaB, decrease the expressions of TNF-alpha and IL-1beta and elevate the expression of IL-10. These results suggest that oral administration of this new probiotic preparation is effective in preventing flare-ups of chronic UC. It may become a prophylactic drug to decrease the relapse of UC.

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