天然产物研究与开发 ›› 2021, Vol. 33 ›› Issue (8): 1274-1281.doi: 10.16333/j.1001-6880.2021.8.002

• 研究论文 • 上一篇    下一篇

地榆对急性溃疡性结肠炎大鼠肠道菌群的影响

李丽1*,冯壮壮1,王慧1,高晶淼2,赵汗林2,王艳炜3,张睦清2,3*   

  1. 1河北医科大学药学院,石家庄 050017;2河北中医学院,石家庄 050200;3河北省中医院,石家庄 050011
  • 出版日期:2021-08-28 发布日期:2021-08-30
  • 基金资助:
    国家自然科学基金(82003913);河北省自然科学基金(H2020206010);河北省中医药管理局项目(2021120,2019054)

Effect of Sanguisorbae Radix on gut microbiota in acute ulcerative colitis rats

LI Li1*,FENG Zhuang-zhuang1,WANG Hui1,GAO Jing-miao2,ZHAO Han-lin2,WANG Yan-wei3,ZHANG Mu-qing2,3*   

  1. 1College of Pharmacy,Hebei Medical University,Shijiazhuang 050017,China;2 School of Pharmacy,Hebei University of  Chinese Medicine,Shijiazhuang 050200,China;3 Hebei Hospital of Traditional Chinese Medicine,Shijiazhuang 050011,China

  • Online:2021-08-28 Published:2021-08-30

摘要:

本实验旨在从肠道菌群角度探讨地榆对急性溃疡性结肠炎(UC)的保护作用及其初步机制。大鼠随机分为正常组、模型组及地榆低、高剂量组。采用3.5%葡聚糖硫酸钠(DSS)诱导急性UC模型,并予以灌胃给药。记录大鼠DAI疾病评分,HE染色观察组织形态变化,ELISA法检测炎症因子含量,高通量测序技术检测肠道菌群。结果显示,地榆可显著降低UC大鼠DAI疾病评分(P<0.05),修复其结肠粘膜损伤,降低血清及结肠组织IL-6、IL-1β、TNF-α含量(P<0.05);改善UC大鼠肠道菌群多样性,恢复菌群平衡。研究结果提示地榆可通过调节UC大鼠肠道菌群,修复结肠粘膜屏障,进而发挥治疗急性UC的作用。

关键词: 地榆, 溃疡性结肠炎, 肠道菌群, 肠粘膜

Abstract:

This study is aimed to explore the protective effects and mechanism of Sanguisorbae Radix (SR) in treating acute ulcerative colitis (UC) from the perspective of gut microbiota.Rats were divided into control group,UC model group,SR low dosage and high dosage group.Acute UC model was induced by 3.5% DSS for 7 days,and then the extract of SR was given to rats by intragastric administration.After 7 days of intervention,the body weight and DAI score of rats were recorded,pathological changes of colon tissue were observed by HE staining,contents of inflammatory factors were detected by ELISA,and the changes of gut microbiota in rats feces were detected by high-throughput sequencing technology.The results showed that SR could alleviate the weight loss and reduce the DAI score of UC rats (P<0.05);protect the morphological integrity of colon tissue and improve the colonic mucosal injury in UC rats;reduce the level of IL-6,IL-1β and TNF-α in the serum and colon of rats (P<0.05).SR could regulate the gut microbiota diversity significantly and restore the balance of intestinal bacteria.The results indicated that SR might repair the colonic mucosal injury by regulating the gut microbiota of UC rats,which could play a positive role in UC treating.

Key words: Sanguisorbae Radix, ulcerative colitis, gut microbiota, colonic mucosa

中图分类号:  R285.5