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Dietary factors influence the recovery rates of Helicobacter pylori in a BALB/cA mouse model

In English

Författare

  • Xin Wang
  • Håkan Sjunnesson
  • Erik Sturegård
  • Torkel Wadström
  • R Willen
  • P Aleljung

Summary, in English

The aim of this study was to assess the ability of different mouse diets to sustain an H. pylori infection in BALB/cA mice. Four commercially available mouse diets were compared. Experiment 1: Mice were fed the four diets for seven days before infection, infected three times at two-day intervals with 0.1 ml of 10(9) colony-forming units/ml H. pylori cells. H. pylori strains (n = 4) were cultured on GAB-Camp agar for 2 days, harvested and suspended in PBS. All animals were sacrificed at 2 and 4 weeks post inoculation. Experiment 2: Mice infected for 8 weeks were fed RM2, changed to the different diets for 10 days and sacrificed. Stomachs were collected, cultured on GAB-Camp agar to estimate H. pylori growth and stomach biopsies were analyzed by PCR. There were significant differences between diets in their ability to sustain growth of H. pylori. The range was from a few hundred colonies to no growth at all on the GAB-Camp agar. PCR signals showed good correlation with the culture results. All H. pylori-infected mice gave a significantly higher inflammation score compared to non-infected mice. The diet RM2, having the highest number of culturable H. pylori in the mouse stomach, also showed the highest inflammation. These results suggest that the dietary factors affect the amounts of H. pylori in an infection of BALB/cA mice.

Publiceringsår

1998

Språk

Engelska

Sidor

195-205

Publikation/Tidskrift/Serie

Zentralblatt für Bakteriologie: Ternational Journal of Medical Microbiology: Medical Microbiology, Virology, Parasitology, Infectious Diseases

Volym

288

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Fischer

Ämne

  • Health Care Service and Management, Health Policy and Services and Health Economy
  • Microbiology in the medical area

Status

Published

Forskningsgrupp

  • Clinical Microbiology, Malmö

ISBN/ISSN/Övrigt

  • ISSN: 0934-8840