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Zhujie Hewei Granules Ameliorated Reflux Esophagitis in Rats
Yue Qiu1, Jia-Liang Hu1, Chun-Cao Zhao1
1Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
Background:
Gastroesophageal reflux disease (GERDs) is a common chronic digestive system disease, in which the symptoms of reflux esophagitis (RE) seriously affect the quality of life.
Aims:
We aimed to study the therapeutic effect of Zhujie Hewei granules (ZHG) on reflux esophagitis in model rats.
Materials And Methods:
A rat model of RE was established with the steps of half pylorus ligation, cardiotomy, and hydrochloric acid perfusion. The rats in treatment groups were orally administered with 1.30, 2.60, or 5.20 g/kg ZHG once daily for 28 days. Histopathological changes of the esophagus were observed with hematoxylin-eosin staining. The content of total bilirubin and pH in gastric juice was determined. Esophageal mucosal injury was assessed by macroscopic observation scores, mucosal injury index scores, and esophageal inflammation scores. The levels of gastrin (GAS), motilin (MTL), and vasoactive intestinal peptide (VIP) in serum were evaluated by using ELISA kits.
Results:
After treatment with ZHG, the body weight of RE rats tended to increase drastically, the macroscopic observation scores of the esophagus mucous membrane decreased (P < 0.05), the mucosal injury index scores decreased (P < 0.05), the gastric pH values increased (P < 0.05), and the levels of serum MTL and VIP decreased (P < 0.05). In addition, the high dose of the ZHG-treated group showed lower serum GAS (P < 0.05), while the high and middle doses of the ZHG-treated groups showed lower esophageal inflammation scores (P < 0.05).
Conclusions:
ZHG was effective in treating RE in rats due using mechanisms including improving the pH value of gastric contents, decreasing the gastrointestinal hormones (including GAS, MTL, and VIP), and improving the inflammatory damage.
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