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Updated: Jul 1, 2026
07:43
Mouse Models Of Helicobacter Infection And Gastric Pathologies
Published on: October 18, 2018
Atrophy and intestinal metaplasia one year after cure of H. pylori infection: a prospective, randomized study
1Endoscopy Center, Chinese University of Hong Kong, Hong Kong. joesung@cuhk.edu.hk
Gastroenterology
|July 13, 2000
Summary
Eradicating Helicobacter pylori infection is beneficial for preventing gastric precancerous lesions. Treatment significantly reduced chronic gastritis and intestinal metaplasia in infected individuals within one year.
Area of Science:
- Gastroenterology
- Oncology
- Microbiology
Background:
- Gastric mucosa progression involves chronic gastritis, intestinal metaplasia (IM), glandular atrophy (GA), and dysplasia, potentially leading to gastric carcinoma.
- Helicobacter pylori infection is a known risk factor for these premalignant changes.
- Investigating the impact of H. pylori eradication on these histologic alterations is crucial for cancer prevention strategies.
Purpose of the Study:
- To determine if eradicating Helicobacter pylori infection alters the progression of premalignant histologic changes in the gastric mucosa.
- To assess the effect of H. pylori eradication on chronic gastritis, intestinal metaplasia, and glandular atrophy.
Main Methods:
- A randomized controlled trial involving 587 H. pylori-infected subjects in Yantai County, China.
- Participants received either a 1-week course of omeprazole, amoxicillin, and clarithromycin (OAC) or a placebo.
- Upper endoscopy with biopsies from the antrum and corpus were performed at baseline and 1 year post-treatment.
Main Results:
- H. pylori eradication was achieved in 226 subjects treated with OAC, while 245 in the placebo group remained infected.
- H. pylori eradication led to significant decreases in acute and chronic gastritis in both antrum and corpus (P<0.001).
- A decrease in the activity of intestinal metaplasia was observed in the antrum (P = 0.014) post-eradication, though overall IM changes were similar between groups.
Conclusions:
- H. pylori eradication at one year is beneficial in preventing the progression of pathological changes in the gastric mucosa.
- The findings support H. pylori eradication as a strategy to mitigate gastric precancerous lesion development.
- Further research may explore long-term effects and specific impacts on different stages of premalignant changes.
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