摘要
Objective: To investigate whether Shenling Baizhu powder can inhibit the inflammatory response of dextran sulfate sodium-induced colitis in rats by protecting the intestinal mucosal barrier. Methods: A total of 40 SD rats were randomly divided into normal control group (group A), dextran sulfate sodium model group (group B), middle-dose Shenling Baizhu powder group (group C), high-dose Shenling Baizhu powder group (group D) and sulfasalazine group (group E), with 8 rats in each group. In addition to group A, dextran sulfate sodium solution (40 g/L) was added to the drinking water of rats for free drinking. The treatment groups were also given the corresponding dose of Shenling Baizhu powder/sulfasalazine. Body weight, disease activity index(DAI), colon length and intestinal mucosal permeability were measured to evaluate the effect of Shenling Baizhu powder on colitis induced by dextran sulfate sodium. The content of interleukin-10(IL-10), interleukin-6(IL-6) and tumor necrosis factor(TNF-ɑ) in rat colonic homogenate were analyzed by using enzyme-linked immunosorbent assay. The protective effect of Shenling Baizhu powder on intestinal mucosa was discussed. Results: The levels of IL-6 and TNF-ɑ in group B were higher than those in group A (P<0.05), while IL-10 level of group B was lower than that of group A (P<0.05). The levels of TNF-ɑ in groups C, D and E were significantly lower than those in group B (P<0.01), and showed concentration dependence in groups C and D. The levels of IL-6 in groups D and E were significantly lower than those in group B (P<0.05). The levels of IL-10 in groups C, D and E were significantly higher than those in group B (P<0.01), and concentration dependence was observed in groups B and C. Conclusion: Shenling Baizhu powder can protect the intestinal mucosal barrier by regulating the function of cytokines such as IL-10, IL-6 and TNF-ɑ, which alleviate the inflammatory response in rats with dextran sulfate sodium-induced colitis.
基金
This study was supported by the General Science of Natural Science Research in Anhui Province (Grant 12925KJ2018B02)
