Development of carcinoid tumors of the glandular stomach and effects of eradication in Helicobacter pylori-infected Mongolian gerbils

Liyu Cao, Tsutomu Mizoshita, Tetsuma Tsukamoto, Yoshiharu Takenaka, Takeshi Toyoda, Xueyuan Cao, Hisayo Ban, Koji Nozaki, Masae Tatematsu

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The relation between Helicobacter pylori (Hp) eradication and prevention of stomach carcinoid development has hitherto remained unclear. We therefore examined this problem using an Hp-infected and Hp-eradicated Mongolian gerbil (MG) model. Enterochromaffin-like (ECL) lesions (hyperplasia/dysplasia and carcinoid) were histopathologically evaluated in the glandular stomachs of Hp-infected and Hp-eradicated MGs. In addition, serum gastrin levels were analyzed. Hp infection induced significant increase in the development of ECL lesions in the glandular stomach, as well as serum gastrin levels as compared with non-infected MGs, while Hp eradication was associated with significant alleviation. The development of ECL lesions in the glandular stomach strongly correlated with titers of anti-Hp antibodies and serum gastrin levels in MGs. In conclusion, Hp infection induces carcinoid development, and Hp eradication prevents its occurrence in the glandular MG stomach, this being strongly linked with reduction in serum gastrin levels.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalAsian Pacific Journal of Cancer Prevention
Volume9
Issue number1
Publication statusPublished - 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Oncology
  • Public Health, Environmental and Occupational Health
  • Cancer Research

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