Evidence map›Paper›PMID 23230291›Full record

ArticleInfection and immunity2013

Helicobacter pylori stores nickel to aid its host colonization.

Stéphane L Benoit, Erica F Miller, Robert J Maier

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Multiple TonB-dependent transport systems inInfection and immunity · 2026
    Article
  2. Article
  3. Distinct Modulation ofBiomolecules · 2026
    Article
  4. Article
  5. Article
  6. DNA vaccine containingIranian journal of basic medical sciences · 2021
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Nickel Sequestration by the Host-Defense Protein Human Calprotectin.Journal of the American Chemical Society · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Observational
  18. Article
  19. Exploratory study of oral mucosal colonization of human gastric Helicobacter pylori in mice.International journal of clinical and experimental medicine · 2014
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Stéphane L BenoitDepartment of Microbiology, The University of Georgia, Athens, GA, USA.
Erica F Miller
Robert J Maier
University of Georgia · US

Funding

Nickel Metabolism in Helicobacter pyloriR01DK062852 · NIDDK · UNIVERSITY OF GEORGIA (UGA) · PI MAIER, ROBERT J. · 2004 to 2006
$763k
NIDDK NIH HHS R01 DK062852
6 · The paper itself

Abstract

The transition metal nickel (Ni) is critical for the pathogenicity of Helicobacter pylori. Indeed the element is a required component of two enzymes, hydrogenase and urease, that have been shown to be important for in vivo colonization of the host gastric mucosa. Urease accounts for up to 10% of the total cellular H. pylori protein content, and therefore the bacterial Ni demand is very high. H. pylori possess two small and abundant histidine-rich, Ni-binding proteins, Hpn and Hpn-like, whose physiological role in the host have not been investigated. In this study, special husbandry conditions were used to control Ni levels in the host (mouse), including the use of Ni-free versus Ni-supplemented food. The efficacy of each diet was confirmed by measuring the Ni concentrations in sera of mice fed with either diet. Colonization levels (based on rank tests) of the Δhpn Δhpn-like double mutants isolated from the mice provided Ni-deficient chow were statistically lower than those for mice given Ni in their diet. In contrast, H. pylori wild-type colonization levels were similar in both host groups (e.g., regardless of Ni levels). Our results indicate that the gastric pathogen H. pylori can utilize stored Ni via defined histidine-rich proteins to aid colonization of the host.

Indexed as

Animal FeedAnimalsBacterial ProteinsGastric MucosaHelicobacter InfectionsHelicobacter pyloriHistidine-Rich GlycoproteinMiceMutationNickelProteinsBacterial ProteinsHistidine-Rich GlycoproteinNickelProteins

Identifiers

PMID23230291
PMCPMC3553817
OpenAlexW2135981199

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.