实验动物与比较医学 ›› 2022, Vol. 42 ›› Issue (6): 551-559.DOI: 10.12300/j.issn.1674-5817.2022.135

• 人类疾病动物模型 • 上一篇    下一篇

疏肝解郁方对便秘型肠易激综合征大鼠模型的疗效及脑-肠轴功能的影响

吴斌1()(), 王旭2, 付东旭3, 朱宇均4, 黄金路5, 朱顺星2()()   

  1. 1.南通市海门区人民医院康复医学科, 海门 226100
    2.南通大学实验动物中心, 南通 226001
    3.南通大学神经再生重点实验室, 南通 226001
    4.南通市海门区人民医院消化内科, 海门 226100
    5.上海交通大学医学院附属第六人民医院药剂科, 上海 200233
  • 收稿日期:2022-08-29 修回日期:2022-12-09 出版日期:2022-12-25 发布日期:2023-01-04
  • 通讯作者: 朱顺星(1968—),男,博士,副教授,研究方向:人类疾病动物模型。E-mail: zsx@ntu.edu.cn。ORCID:0000-0001-8011-4099
  • 作者简介:吴 斌(1976—),男,硕士,主治医师,研究方向:脾胃病、脑病的中西医结合药物及康复治疗。E-mail: wubinhm@126.com。ORCID: 0000-0001-7072-9495
  • 基金资助:
    2019年度南通市市级科技计划(指导性)项目“徐景藩经验方加减治疗便秘型肠易激综合征临床观察及对细胞因子的影响”(MSZ19081)

Effect of the Traditional Chinese Medicine Shuganjieyu Formula on Constipation Type Irritable Bowel Syndrome and Brain-gut Axis in Rats

Bin WU1()(), Xu WANG2, Dongxu FU3, Yujun ZHU4, Jinlu HUANG5, Shunxing ZHU2()()   

  1. 1.Department of Rehabilitation Medicine, Nantong Haimen People's Hospital, Haimen 226100, China
    2.Laboratory Animal Center, Nantong University, Nantong 226001, China
    3.Key Laboratory of Neural Regeneration, Nantong University, Nantong 226001, China
    4.Department of Gastroenterology, Nantong Haimen People's Hospital, Haimen 226100, China
    5.Department of Pharmacy, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
  • Received:2022-08-29 Revised:2022-12-09 Published:2022-12-25 Online:2023-01-04
  • Contact: ZHU Shunxing (ORCID: 0000-0001-8011-4099), E-mail: zsx@ntu.edu.cn

摘要:

目的 观察疏肝解郁方对便秘型肠易激综合征(constipation irritable bowel syndrome,IBS-C)大鼠模型的干预效果及对5-羟色胺(5-hydroxytryptamine,5-HT)、促肾上腺皮质激素释放激素(corticotropin releasing hormone,CRH)和促肾上腺皮质激素(adrenocorticotropic hormone,ACTH)的影响,探讨其调控脑-肠轴功能的作用机制。 方法 将40只SD大鼠随机分为正常对照组、模型组及中药疏肝解郁方低、高剂量组,每组10只。除正常对照组外,其余各组采用冰水灌胃法制备IBS-C大鼠模型,待模型成功后低、高剂量中药组分别灌胃给予5 g/kg、20 g/kg的疏肝解郁方干预2周。观察各组大鼠体质量、粪便粒数及粪便含水量的变化情况,共28 d;末次给药后,取下腔静脉血收集血清,3%戊巴比妥钠溶液麻醉后截取结肠,光学显微镜下观察结肠组织形态学改变及肥大细胞(mast cells,MC)计数;免疫组织化学法检测各组大鼠结肠组织中5-HT阳性表达量;ELISA法检测各组大鼠血清中5-HT、CRH和ACTH的含量。 结果 与正常对照组相比,IBS-C模型组大鼠体质量增加减缓,粪便粒数减少,粪便含水量降低(P<0.05),结肠组织形态学未见有异常病理改变,结肠组织中MC细胞数量和5-HT阳性表达量显著增加(P<0.05),血清中5-HT的含量显著增加,而ACTH的含量显著降低(P<0.05)。与模型组相比,中药各剂量组大鼠体质量有所增加、粪便粒数及粪便含水量趋于正常,但差异不具有统计学意义,中药各剂量组大鼠结肠组织结构正常,MC细胞数量和5-HT阳性表达量均显著降低(P<0.05),血清中5-HT含量显著降低,而ACTH含量显著增加(P<0.05)。中药各剂量组间量效关系不具有统计学意义。 结论 疏肝解郁方能有效改善IBS-C模型大鼠的脑-肠轴功能紊乱,对IBS-C有良好的治疗作用。

关键词: 便秘型肠易激综合征, 疏肝解郁方, 脑-肠轴功能, 大鼠

Abstract:

Objective To observe the intervention effect of Shuganjieyu Formula on the rat model of constipation irritable bowel syndrome (IBS-C) and its effects on 5- hydroxytryptamine (5-HT), corticotropin releasing hormone (CRH) and adrenocorticotropic hormone (ACTH), and to explore their mechanism of regulating brain-gut axis function. Methods Totally fourty rats were randomly divided into four groups with 10 rats in each group, including normal control group, model group, low (5 mg/kg) and high (20 mg/kg) doses of Shuganjieyu Formula groups. Except for the normal control group, the other three groups of rats were gavaged with ice water for preparing the IBS-C model. Subsequently, the low and high doses groups of rats were treated with Shuganjieyu Formula for 2 weeks via oral gavage. The body weight of rats, total particle number and water content of fecal in the four groups were observed for 28 days. At last, serum of inferior vena cava and colon were collected from rats after anesthesia of 3% pentobarbital sodium. The morphological changes of colon tissue and the count of mast cells (MC) were observed with light microscope. Immunohistochemistry was used to detect the positive expression of 5-HT in the colon of rats in each group. The serum levels of 5-HT, CRH and ACTH were detected by ELISA. Results Compared with the normal control group, the body weight of rats in IBS-C model group increased slowly, the number of fecal grains and the fecal water content decreased (P<0.05); the number of MC cells, the positive expression of 5-HT in colon tissue increased significantly in IBS-C group (P<0.05); the content of 5-HT in serum increased significantly, while the content of ACTH decreased significantly in IBS-C group (P<0.05). Colonic morphology showed no abnormal pathological changes in IBS-C model group. Compared with the model group, the body weight, fecal granule number and fecal water content of rats in each dose group of traditional Chinese medicine increased, but the differences were not statistically significant. The colon tissue structure of rats in each dose group of traditional Chinese medicine was normal. Compared with the model group, the number of MC cells and the positive expression of 5-HT in each dose group of traditional Chinese medicine decreased significantly (P<0.05), the content of 5-HT in serum decreased significantly, while the content of ACTH increased significantly (P<0.05). The dose-effect relationship between the low and high doses groups of Shuganjieyu Formula was not statistically significant. Conclusion The traditional Chinese medicine Shuganjieyu Formula can effectively improve the dysfunction of brain-gut axis in IBS-C model rats, and has a good therapeutic effect on IBS-C.

Key words: Constipation irritable bowel syndrome, Shuganjieyu Formula, Brain-gut axis function, Rats

中图分类号: