Organisms

Helicobacter pylori

A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

4 entry terms
  • Campylobacter pylori
  • Campylobacter pylori subsp. pylori
  • Campylobacter pyloridis
  • Helicobacter nemestrinae

MeSH Record

Aspects Covered

15 allowable subheadings

Indexed with the subheadings chemistry, classification, cytology, drug effects, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

infection: coordinate with HELICOBACTER INFECTIONS

MeSH Record

History Note

91

MeSH Record

Previous Indexing

  • Campylobacter (1984-1990)

MeSH Hierarchy

Tree Numbers

  1. B03w.440w.500w.550w
  2. B03w.660w.150w.235w.500w.250w.550w

MeSH Record

NLM Classification

QW 154

AMA Style

References

  1. National Library of Medicine. Helicobacter pylori. Medical Subject Headings (MeSH). 2026. Unique ID D016480. http://id.nlm.nih.gov/mesh/2026/D016480
  2. Helicobacter pylori. In: Wikipedia. https://en.wikipedia.org/wiki/Helicobacter_pylori
  3. Helicobacter pylori. In: Wikidata. https://www.wikidata.org/wiki/Q180556