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Journal of Traditional Chinese Medicine >

2023 , Vol. 43 >Issue 2: 303 - 311

DOI: https://doi.org/10.19852/j.cnki.jtcm.20220922.002

Original articles

Efficacy of Qifu Lizhong enema prescription (芪附理中灌肠方) on intestinal mucosal tight junction function modulation of ulcerative colitis rat model

  • Jing CHENG ,
  • Shangbin Lü ,
  • Yi ZHANG ,
  • Shuangyuan HU ,
  • Pengfei WEI ,
  • Wenhua ZHOU ,
  • Junfeng SHI
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  • 1 Clinical Medical college, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
    2 Basic Medical college, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China

Received date: 2022-01-11

  Accepted date: 2022-04-23

  Online published: 2023-03-14

Supported by

National Natural Science Foundation of China: Research on the Biological Mechanism of Nourishing Fire and Nourishing Soil Building Muscle Regeneration in Repairing Intestinal Mucosal Barrier Damage in UC Based on MLCK/Rho/PKC-Crosstalk(81973821)

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Abstract

OBJECTIVE: To investigate the efficacy and mechanism of Qifu Lizhong enema prescription(芪附理中灌肠方, QFLZ) on intervening ulcerative colitis (UC) rat model with TCM spleen and kidney Yang insufficiency syndrome.

METHODS: Seventy-two male Sprague-Dawley rats were randomly assigned to six groups: normal model, mesalazine, and QFLZ high, medium, and low dose groups, each with 12 rats. After 3 d of adaptation feeding, all groups except the normal group were induced using rhubarb decoction in combination with trinitrobenzene sulfonic acid (TNBS)/55 % ethanol to establish a UC rat model. Following successful modeling, the normal and model groups received daily saline enema, while the Chinese medicine and Western medicine groups received daily QFLZ and Mesalazine enema for 2 weeks respectively. The disease activity index score, hematoxylin and eosin staining, immunohistochemistry, and Western blotting were used to determine the expression of claudin 1, claudin 2, zonula occludens-1 protein (ZO-1), and F-actin proteins in each rat colon tissue following treatment.

RESULTS: QFLZ significantly alleviated the structural disorganization in the form of epithelial glands in the intestinal mucosa of rats with UC and retarded the progression of the disease. The intestinal mucosal epithelial cells of UC rats showed decreased expression of claudin 1, ZO-1, F-actin (P < 0.05), claudin 2 appeared elevated (P < 0.05), which resulted in impaired TJ. Treatment with QFLZ resulted in elevated expression of claudin 1 (P < 0.05), ZO-1 (P < 0.05) and F-actin (P < 0.05) and decreased expression of claudin 2 (P < 0.05), which allowed for repair of the intestinal mucosal TJ, which in turn served as a treatment for UC.

CONCLUSIONS: The mechanism of repairing TJ function and repairing the intestinal mucosal barrier by QFLZ may be associated with up-regulation of claudin 1, ZO-1, and F-actin levels, and down-regulation of claudin 2 expression level.

Key words： colitis, ulcerative; claudin-1; claudin-2; zonula occludens-1 protein; actins; Qifulizhong enema prescription

Cite this article

Jing CHENG , Shangbin Lü , Yi ZHANG , Shuangyuan HU , Pengfei WEI , Wenhua ZHOU , Junfeng SHI . Efficacy of Qifu Lizhong enema prescription (芪附理中灌肠方) on intestinal mucosal tight junction function modulation of ulcerative colitis rat model[J]. Journal of Traditional Chinese Medicine, 2023 , 43(2) : 303 -311 . DOI: 10.19852/j.cnki.jtcm.20220922.002

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