Effect of Low-Dose Aspirin on Chronic Acid Reflux Esophagitis in Rats
Abstract
BackgroundClinical role of low-dose aspirin (LDA) in pathogenesis of gastroesophageal reflux disease is by far controversial. This can be attributed to the paucity of basic research detailing the mechanism of LDA-induced esophageal mucosal injury (EI) on underlying chronic acid reflux esophagitis (RE).AimThe aim of this study was to clarify the effect of LDA on chronic RE in rats.MethodsEsophagitis was induced in 8-week-old male Wistar rats by ligating the border between forestomach and glandular portion with a 2–0 silk tie and covering the duodenum with a small piece of 18-Fr Nélaton catheter. Seventy-eight chronic RE rat models were divided into five treatment groups, consisting of orally administered vehicle (controls), and aspirin doses of 2, 5, 50 or 100 mg/kg once daily for 28 days. EI was assessed by gross area of macroscopic mucosal injury, severity grade of esophagitis and microscopic depth of infiltration by inflammatory cells.ResultsArea of esophagitis in animals with aspirin dose of 100 mg/kg/day showed a 36.5% increase compared with controls, although it failed to achieve statistical significance (p = 0.812). Additionally, the rate of severe EI was increased in animals with aspirin dose of 100 mg/kg/day as compared with controls (p < 0.05). The grade of severity correlated with the depth of inflammation (rs = 0.492, p < 0.001).ConclusionsMaximal dose aspirin (100 mg/kg/day) contributed in exacerbating preexisting EI. LDA (2 and 5 mg/kg/day), on the other hand,…
Read the paper
Related studies
- Advantages and Disadvantages of Long-term Proton Pump Inhibitor Use
- Ivth brazilian consensus conference on helicobacter pylori infection
- A pSMAD/CDX2 complex is essential for the intestinalization of epithelial metaplasia
- S2k-Leitlinie Gastroösophageale Refluxkrankheit und eosinophile Ösophagitis der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) – März 2023 – AWMF-Registernummer: 021–013
- Step-by-step management of refractory gastresophageal reflux disease
- Insights into Effects/Risks of Chronic Hypergastrinemia and Lifelong PPI Treatment in Man Based on Studies of Patients with Zollinger–Ellison Syndrome
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.