Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (32): 5158-5161.doi: 10.3969/j.issn.2095-4344.2805

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Preparing an adult mouse model of functional dyspepsia

Yu Jing, Pang Jiayu, Jia Ziye, Wu Xiaoguang   

  1. Institute of Basic Medicine, Chengde Medical College, Chengde 067000, Hebei Province, China
  • Received:2019-10-16 Revised:2019-10-21 Accepted:2019-11-29 Online:2020-11-18 Published:2020-09-25
  • Contact: Wu Xiaoguang, Master, Professor, Institute of Basic Medicine, Chengde Medical College, Chengde 067000, Hebei Province, China
  • About author:Yu Jing, Master candidate, Institute of Basic Medicine, Chengde Medical College, Chengde 067000, Hebei Province, China

Abstract:

BACKGROUND: A suitable rat model of functional dyspepsia is a reliable animal model for subsequent clinical treatment and drug research.

OBJECTIVE: To prepare a model of functional dyspepsia in adult mice using a combined multi-factor method.

METHODS: Sixty Kunming mice were randomly divided into a blank control group and a model group, with 30 mice in each group. The mice in the blank control group were orally administered 0.2 mL of a 2% sucrose solution for 8 continuous days. Based on the classic iodoacetamide modeling method combined with daily feeding, the model group was subjected to force swimming in a water tank for 20 minutes, and 1 hour later, the mice were orally administered 5.7 g/kg L-arginine solution for 5 days, followed by oral administration of cold rhubarb decoction 2.9g/gk for another 3 days. The behavioral and pathological changes under light microscope were observed to determine the modeling effect. The study protocol was approved by the Animal Ethic Committee of Chengde Medical College, No. CDMULAC-20191113-011.

RESULTS AND CONCLUSION: Compared with the control group, the model group showed a reduction in hair color, arch back and body mass, and the intestinal propulsion rate and gastric emptying rate both had a downtrend. Intestinal tissue sections showed mild damage under the light microscope. Therefore, the combined multi-factor modeling method used in in the adult mice can successfully prepare the functional dyspepsia model. Moreover, the animal model prepared by this method has no obvious organic lesions, such as necrosis and erosion, indicating that this is a feasible method to prepare the adult mouse model of functional dyspepsia.  

Key words: dyspepsia, gastrointestinal, mouse, experiment, animal, model

CLC Number: