中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (49): 7404-7410.doi: 10.3969/j.issn.2095-4344.2016.49.016

• 消化系统损伤动物模型 Animal models of digestive damage • 上一篇    下一篇

复方地芬诺酯建立大鼠便秘模型及对肠道菌群的影响

李根林,张颜语,李寒冰   

  1. 河南中医药大学,河南省郑州市  450046
  • 收稿日期:2016-10-13 出版日期:2016-11-30 发布日期:2016-11-30
  • 通讯作者: 李寒冰,博士,副教授,硕士生导师,执业药师,河南省新药审评专家,河南中医药大学,河南省郑州市 450046
  • 作者简介:李根林,男,1963年生,河南省郑州市人,汉族,硕士,教授,硕士生导师,执业药师,执业医师,主要研究方向有中药抗衰老研究、中医药用于骨伤病的临床与实验研究等。
  • 基金资助:

    国家自然基金面上项目(81473435);河南省高等学校青年骨干教师资助计划(2013GGJS-092);河南中医药大学研究生苗圃计划(MP2015-89)

Effect of constipation induced by diphenoxylate on intestinal flora in a rat

Li Gen-lin, Zhang Yan-yu, Li Han-bing   

  1. Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • Received:2016-10-13 Online:2016-11-30 Published:2016-11-30
  • Contact: Li Han-bing, M.D., Associate professor, Master’s supervisor, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • About author:Li Gen-lin, Master, Professor, Master’s supervisor, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81473435; the Fund for the Young Talent Teacher in High Educations of Henan Province, No. 2013GGJS-092; the Nursery Plan for the Postgraduate of Henan University of Chinese Medicine, No. MP2015-89

摘要:

文章快速阅读:

文题释义:
便秘:是指排便困难或费力、排便不畅、便次太少、粪便干结且量少。主要原因有习惯性忽略排便感觉、排便肌软弱无力、肛门扩约肌痉挛、肠蠕动迟缓、肠痉挛、肠梗阻、缺少体力活动等。急性便秘常由于肠梗阻、肠麻痹、急性腹膜炎、脑卒中、急性心肌梗死、肛周疼痛性疾病等引起;慢性便秘常由于慢性机械性肠梗阻或肠蠕动功能失调所致,如肠肿瘤、肠粘连、肠易激综合征等。便秘患者可表现为每周排便少于3次,或虽然每日排便多次,但排便相当费力,每次排便所费时间相当长,排出粪便干结如羊粪且数量少,排便后仍有粪便未排尽的感觉。
地芬诺酯:是哌替啶的衍生物,代替阿片制剂。对肠道作用类似吗啡,直接作用于肠平滑肌,通过抑制肠黏膜感受器,消除局部黏膜的蠕动反射而减弱蠕动,同时可增加肠的节段性收缩,从而延长肠内容物与肠黏膜的接触,促进肠内水分的回吸收。

摘要
背景
:既往研究中检测便秘模型的指标多为粪便粒数、肠道张力变化等整体指标,很少涉及肠道菌群的变化。
目的:以复方地芬诺酯建立便秘大鼠模型探索便秘对大鼠肠道张力、病理及微生态等方面的影响。
方法:20只SPF级Wistar大鼠随机分为空白组和模型组,分别连续20 d灌胃10 mg/kg的复方地芬诺酯和蒸馏水。
结果与结论:与空白组相比,给药20 d,模型组大鼠回肠收缩频率降低,24 h排便量减少,盲肠内容物中细菌种群结构存在变化,结肠结构严重破坏。结果表明,便秘大鼠肠道菌群严重紊乱。

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

ORCID: 0000-0001-6943-2539(李寒冰)

关键词: 实验动物, 消化系统损伤与修复动物模型, 肠道菌群紊乱, 便秘大鼠, 复方地芬诺酯, 肠道张力, 大肠杆菌, 双歧杆菌, 乳酸杆菌, 国家自然科学基金

Abstract:

BACKGROUND: In the previous studies, the overall index in constipation models, such as fecal output in 24 hours and intestinal tension are usually measured. However, the changes of intestinal flora are rarely involved.
OBJECTIVE: To explore the effect of constipation on intestinal tension, pathology and microecology in the rat models of diphenoxylate-induced constipation.
METHODS: Twenty SPF Wistar rats were randomly divided into blank control and model groups, followed by given 10 mg/kg diphenoxylate and distilled water by gavage once daily for 20 days, respectively.
RESULTS AND CONCLUSION: Twenty days later, compared with the blank control group, the frequency of ileum contraction was decreased, 24-hour stool decreased, the ratio of bacteria group in the cecum changed, and structure of the colon was seriously damaged in the model group. These results suggest that constipation results in the intestinal flora disturbance remarkablely.

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

Key words: Constipation, Diphenoxylate, Enterobacteriaceae, Tissue Engineering

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