babA2- and cagA-positive Helicobacter pylori strains are associated with duodenal ulcer and gastric carcinoma in Brazil

J Clin Microbiol. 2003 Aug;41(8):3964-6. doi: 10.1128/JCM.41.8.3964-3966.2003.

Abstract

The babA2 and cagA genes were investigated in 208 Brazilian Helicobacter pylori strains. A strong association between babA2 and duodenal ulcer or gastric carcinoma was observed, even after adjusting for confounding factors, such as age, gender, and cagA status. cagA-positive strains were also independently associated with H. pylori-related diseases.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesins, Bacterial / genetics
  • Adult
  • Aged
  • Aged, 80 and over
  • Analysis of Variance
  • Antigens, Bacterial / genetics*
  • Bacterial Proteins / genetics*
  • Brazil / epidemiology
  • Carrier Proteins / genetics
  • Duodenal Ulcer / epidemiology
  • Duodenal Ulcer / microbiology*
  • Female
  • Gastritis / microbiology
  • Helicobacter Infections / complications
  • Helicobacter pylori / genetics*
  • Helicobacter pylori / pathogenicity
  • Humans
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Stomach Neoplasms / epidemiology
  • Stomach Neoplasms / microbiology*

Substances

  • Adhesins, Bacterial
  • Antigens, Bacterial
  • BabA protein, Helicobacter pylori
  • Bacterial Proteins
  • Carrier Proteins
  • cagA protein, Helicobacter pylori