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Mouse Models Of Helicobacter Infection And Gastric Pathologies
Published on: October 18, 2018
Helicobacter pylori and Meckel's diverticula.
1Department of Pathology, University of Washington, Children's Hospital and Regional Medical Center, Seattle, USA.
Journal of Pediatric Gastroenterology and Nutrition
|April 26, 2001
Summary
Helicobacter pylori (H. pylori) rarely colonizes Meckel's diverticula in children with bleeding ulcers. This study suggests alternative causes for ulceration in these cases, not H. pylori infection.
Area of Science:
- Pediatric Gastroenterology
- Gastrointestinal Pathology
- Microbiology
Background:
- Helicobacter pylori (H. pylori) is a known cause of gastroduodenal ulcers.
- Its presence in Meckel's diverticula, particularly in children, has not been extensively studied.
- This research investigates H. pylori colonization in Meckel's diverticula associated with gastritis and bleeding.
Purpose of the Study:
- To determine the prevalence of H. pylori in the gastric mucosa of pediatric Meckel's diverticula.
- To explore the relationship between H. pylori, gastritis, and bleeding in these diverticula.
- To identify potential alternative mechanisms for ulceration in Meckel's diverticula.
Main Methods:
- Retrospective review of 45 pediatric Meckel's diverticulum cases over 10 years.
- Histological examination (Hematoxylin-eosin, Diff-Quik) for gastritis and organisms.
- Immunoperoxidase staining for H. pylori in positive cases.
- Comparison with a control group of children with Meckel's diverticulum and intussusception.
Main Results:
- H. pylori was identified in only 1 of 45 patients with Meckel's diverticulum.
- Children with bleeding Meckel's diverticula and acid-secreting mucosa showed ulceration and chronic gastritis.
- Lymphoid follicles were observed in Meckel's diverticula but were not associated with H. pylori.
Conclusions:
- H. pylori is not a common cause of ulceration in pediatric Meckel's diverticula, even with acid-secreting mucosa.
- Ulceration in Meckel's diverticula can occur independently of H. pylori infection.
- The presence of lymphoid follicles in Meckel's diverticula does not indicate H. pylori colonization.
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