Korean J Helicobacter Up Gastrointest Res.  2015 Dec;15(4):243-248. 10.7704/kjhugr.2015.15.4.243.

Helicobacter pylori Infection and Intestinal Metaplasia among Healthy Adolescents

Affiliations
  • 1Department of Pediatrics, Gyeongsang National University School of Medicine, Jinju, Korea. hsyoun@gnu.ac.kr
  • 2Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.
  • 3Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Korea.
  • 4Department of Pathology, Gyeongsang National University School of Medicine, Jinju, Korea.
  • 5Gyeongsang Institute of Health Science, Gyeongsang National University Hospital, Jinju, Korea.

Abstract

BACKGROUND/AIMS
The purpose of our study was to investigate the change in incidence of intestinal metaplasia (IM) in healthy, young adults over 10 years.
MATERIALS AND METHODS
Urease test and histopathology by endoscopic biopsies were performed from volunteers between 1995 and 2005. Histopathological grade was assessed using the updated Sydney System.
RESULTS
In total, 714 subjects with a median age of 22.4 years were enrolled. Helicobacter pylori was observed at the antrum and body in 44.5% and 35.1%, respectively. IM limited to the antrum was present in 1.1% of the subjects. The degree of IM correlated negatively with age (P=0.04) but there was no correlation with H. pylori levels or the degree of chronic or active gastritis. Compared to the beginning of the study period, the positivity rate at the end of the study period droped to 45%. IM incidence did not change over the 11-year study period, whereas H. pylori-positivity and the frequency of chronic and active gastritis in the antrum and body dropped significantly over this period (P<0.05).
CONCLUSIONS
This result suggests that other factors, besides chronic H. pylori infection or degree of gastritis, may contribute to the progression of atrophy to IM in healthy, young adults.

Keyword

Helicobacter pylori; Intestinal metaplasia

MeSH Terms

Adolescent*
Atrophy
Biopsy
Gastritis
Helicobacter pylori*
Helicobacter*
Humans
Incidence
Metaplasia*
Urease
Volunteers
Young Adult
Urease
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