1. Omeprazole taken once every other day can effectively prevent aspirin-induced gastrointestinal mucosal damage in rats.
- Author
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Weng J, Song Y, Kuai D, Dai W, Yao Y, Xu W, Li Y, Fan L, and Xu B
- Subjects
- Animals, Male, Rats, Drug Administration Schedule, Humans, Peptic Ulcer prevention & control, Peptic Ulcer chemically induced, Intestinal Mucosa drug effects, Intestinal Mucosa pathology, Intestinal Mucosa metabolism, Stomach Ulcer prevention & control, Stomach Ulcer chemically induced, Stomach Ulcer pathology, Aspirin adverse effects, Aspirin administration & dosage, Omeprazole pharmacology, Omeprazole administration & dosage, Rats, Sprague-Dawley, Proton Pump Inhibitors pharmacology, Proton Pump Inhibitors administration & dosage, Gastric Mucosa drug effects, Gastric Mucosa pathology, Gastrins blood
- Abstract
Background: Proton-pump inhibitors (PPIs) prevent aspirin-associated gastric and duodenal mucosal damage. However, long-term use of PPIs can lead to various adverse reactions, such as gastric polyps and enterochromaffin-like cell hyperplasia. Current research indicates that the abovementioned adverse reactions are mainly related to hypergastrinemia. We investigated whether low-frequency administration of omeprazole could effectively repair aspirin-induced mucosal damage and reduce the increase in gastrin levels associated with long-term use of PPIs., Methods: Sprague‒Dawley rats were divided into four treatment groups: daily aspirin, daily aspirin and omeprazole once every day (qd), daily aspirin and omeprazole once every other day (qod), and daily aspirin and omeprazole once every three days (1/d3). After 15 days of feeding, blood samples were collected, and the stomachs of sacrificed rats were subjected to macroscopic, histological, and immunohistochemical studies. Moreover, in clinical practice, patients with peptic ulcers caused by aspirin took a standard dose of omeprazole (20 mg) every other day. Two months later, gastroscopy was performed to examine the healing of the ulcers., Results: Both the omeprazole qd and omeprazole qod administrations effectively prevented aspirin-induced gastric peptic ulcers, with no significant difference between the two groups in the inhibition of parietal cell secretion of gastric acid and cell apoptosis. However, omeprazole 1/d3 failed to completely prevent aspirin-induced gastric mucosal injury. Notably, the gastrin levels, cell proliferation ability and cholecystokinin B receptor expression of the omeprazole qd group were significantly higher than those of the omeprazole qod group. In clinical work, patients with peptic ulcers caused by aspirin were given a standard dose of omeprazole every other day, and their ulcers healed after 2 months, as observed by gastroscopy., Conclusions: Omeprazole administration once every other day can effectively prevent aspirin-induced peptic ulcers and reduce hypergastrinemia, which may reduce the long-term adverse effects of PPI treatment., (© 2024. The Author(s).)
- Published
- 2024
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