Correlation between Helicobacter pylori infection and severity of gastritis in children

Wei Zheng1, Xiaoyu Chen1, Yaofeng Yang1

  • 1Department of Gastroenterology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China.

Microbiology Spectrum
|July 29, 2025
PubMed

Insights

Helicobacter pylori (H. pylori) infection in children is linked to increased gastric inflammation and active gastritis. Higher H. pylori levels correlate with more severe histopathological changes in the gastric mucosa.

Area of Science:

  • Gastroenterology
  • Pediatric Medicine
  • Microbiology

Background:

  • Helicobacter pylori (H. pylori) is a prevalent global infection linked to chronic gastritis.
  • Pediatric H. pylori infections present varied endoscopic findings, especially nodular changes in endemic regions.

Purpose of the Study:

  • To investigate endoscopic and histopathological alterations in the gastric mucosa of pediatric H. pylori patients.
  • To explore the relationship between H. pylori colonization density and the severity of gastritis-related histological parameters.

Main Methods:

  • A monocentric study involving 120 children undergoing gastroscopy for gastrointestinal distress symptoms.
  • Acquisition of mucosal biopsies for histopathological analysis to identify H. pylori infection and assess inflammation, activity, and lymphoid follicles.

Main Results:

  • Out of 120 children, 64 tested positive for H. pylori infection.
  • H. pylori-infected children showed significantly higher inflammation, activity, and lymphoid follicles compared to uninfected children.
  • A strong association was found between H. pylori infection and nodular lesions, active gastritis, and the degree of inflammation.

Conclusions:

  • H. pylori infection is significantly associated with histopathological changes, including active gastritis, in pediatric patients.
  • The study confirms a link between H. pylori colonization density and the severity of histological gastritis parameters.

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