Selection for urease activity during Helicobacter pylori infection of rhesus macaques (Macaca mulatta)

L. M. Hansen, Jay V Solnick

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Helicobacter pylori strain J166 recovered from experimentally inoculated rhesus monkeys had up to a 250-fold-increased urease activity over that before inoculation. This was found to result from the selection of urease positive J166 clones from a heterogenous inoculum, which was predominantly urease negative due to a 1-bp insertion in the urea gene. These results confirm the importance of urease for H. pylori colonization. Strain J166 is particularly well adapted to the rhesus monkey, since it colonized preferentially despite the fact that less than 0.1% of the inoculum was urease positive.

Original languageEnglish (US)
Pages (from-to)3519-3522
Number of pages4
JournalInfection and Immunity
Volume69
Issue number5
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Immunology

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