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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (9): 995-998.

• 研究原著 • 上一篇    下一篇

唐古特大黄多糖对小鼠溃疡性结肠炎细胞因子的影响

张蓉, 王志鹏, 刘莉, 梅其炳   

  1. 第四军医大学药学系药理学教研室, 西安 710032, 陕西
  • 收稿日期:2006-05-10 修回日期:2006-06-13 出版日期:2006-09-26 发布日期:2020-11-05
  • 通讯作者: 梅其炳,男, 教授, 博士生导师, 研究方向:心血管药理。Tel:029-83374552 E-mail:qbmei@fmmu.edu.cn
  • 作者简介:张蓉, 女, 博士生, 研究方向:心血管药理。Tel:029-83376291  E-mail:hsjdadan@fmmu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(No30300450)

Effects of rheum tanguticum polysaccharides on ulcerative colitis induced by TNBS in mice

ZHANG Rong, WANG Zhi-peng, LIU Li, MEI Qi-bing   

  1. Department of Pharmacology of the Fourth Military Medical University, Xi'an 710032, Shanxi , China
  • Received:2006-05-10 Revised:2006-06-13 Online:2006-09-26 Published:2020-11-05

摘要: 目的 观察唐古特大黄多糖(rheum tanguticum polysaccharides, RTP) 对小鼠溃疡性结肠炎(ulcerative colitis, UC) 的疗效并探讨其可能存在的机制。方法 应用三硝基苯磺酸(TNBS) 灌肠制备小鼠溃疡性结肠炎模型。实验设正常对照组、模型对照组、RTp治疗组(100 、200 、400 mg·kg-1) 。观察各组实验小鼠体质量变化及组织病理学改变, 采用酶联免疫吸附法检测细胞因子(IL-8 、IL-10 、TNF-α、IL-4) 的含量。结果 中、高剂量的RTp能够缓解小鼠体质量的减轻,减少腹泻及便血的发生;并且能够显著改善小鼠结肠组织损伤及病理学改变。溃疡性结肠炎模型组TNF-α、IL-8 的表达较正常对照组显著增高, 而IL-10 、IL-4 的表达明显降低(p<0.05);高剂量RTp治疗组的TNF-α、IL-8 表达明显低于溃疡性结肠炎模型组, IL-10 、IL-4 的表达显著高于模型组(p<0.01) 。结论 RTp对TNBS 诱导的小鼠溃疡性结肠炎具有良好治疗作用, 其机制可能与上调抗炎细胞因子(IL-10 、IL-4) 及下调促炎细胞因子有关。

关键词: 唐古特大黄多糖, 溃疡性结肠炎, 2, 4, 6-三硝基苯磺酸

Abstract: AIM: To explore the effects of rheum tanguticum polysaccharides (RTP) on TNBS -induced colitis in mice and its probable mechanisms.METHODS: Mice colitis model was induced by 2, 4, 6-trinitrobenzene sulfonic acid (TNBS).The mice were randomly divided into 5 groups, normal group, model group,RTP-100, 200 and 400 group.The macroscopical and histological changes of the colon were evaluated and the cytokines IL-8, IL-10, TNF-αand IL-4 produced by splenocyts were analyzed with ELISA.RESULTS: Compared with the model group, both symptoms and the lesions of colonic mucosa of RTP-200 and 400 groupwere slighter on ulcerative colitis induced by TNBS in mice.Furthermore, the expressions of TNF-αand IL-8 in colon tissue of mice with TNBS-induced colitis were higher and the IL-10 and IL-4 were lower than that of normal control(p<0.05).In RTP-400 group, the positive expressions of TNF-αand IL-8 were lower and IL-10 and IL-4 were higher than that of model group(p<0.01).CONCLUSION: RTphas significant effects on TNBS-induced colitis in mice, the mechanism of which may relate to its regulation on cytokines.

Key words: rheum tanguticum polysaccharides, ulcerative colitis, TNBS

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