Evidence map›Paper›PMID 20098711›Full record

ArticlePloS one2010

Infection with Helicobacter pylori is associated with protection against tuberculosis.

Sharon Perry, Bouke C de Jong, Jay V Solnick, Maria de la Luz Sanchez, Shufang Yang, Philana Ling Lin, Lori M Hansen, Najeeha Talat, Philip C Hill, Rabia Hussain and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
9.5field-weighted citation impact, top 2% 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

95 citing papers in PubMed, 157 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Association ofJournal of tropical medicine · 2026
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. The Interplay betweenClinics and practice · 2024
    Review
  12. CagA-positiveFrontiers in microbiology · 2024
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

35 more citing papers are in PubMed but not listed here.

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

14 authors at 6 institutions in 3 countries.

Sharon PerryDivision of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California, United States of America. shnperry@stanford.edu
Bouke C de Jong
Jay V Solnick
Maria de la Luz Sanchez
Shufang Yang
Philana Ling Lin
Lori M Hansen
Najeeha Talat
Philip C Hill
Rabia Hussain
Richard A Adegbola
Joanne Flynn
Don Canfield
Julie Parsonnet
MRC Unit the Gambia · GMStanford University · USUniversity of California, Davis · USAga Khan University · PKUniversity of Pittsburgh · USStanford Medicine · US

Funding

EPIDEMIOLOGY OF HELICOBACTER PYLORI TRANSMISSIONR01AI042801 · NIAID · STANFORD UNIVERSITY · PI PARSONNET, JULIE · 1999 to 2010
$6.2M
Latent and Reactivation TuberculosisR01HL075845 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FLYNN, JOANNE L. · 2003 to 2007
$3.3M
Gene expression during H. pylori-host interactionsR01AI042081 · NIAID · UNIVERSITY OF CALIFORNIA DAVIS · PI SOLNICK, JAY V. · 1998 to 2007
$2.5M
Immunoepidemiology of Concomittant InfectionK23AI054443 · NIAID · STANFORD UNIVERSITY · PI PERRY, SHARON · 2004 to 2008
$657k
Medical Research Council MC_U190071468NHLBI NIH HHS HL075845NHLBI NIH HHS R01 HL075845NIAID NIH HHS K23 AI054443NIAID NIH HHS K23-AI054443NIAID NIH HHS R01 AI042081NIAID NIH HHS R01 AI042801NIAID NIH HHS R01-AI42081NIAID NIH HHS R01-AI42801
6 · The paper itself

Abstract

backgroundHelicobacter pylori, a lifelong and typically asymptomatic infection of the stomach, profoundly alters gastric immune responses, and may benefit the host in protection against other pathogens. We explored the hypothesis that H. pylori contributes to the control of infection with Mycobacterium tuberculosis. METHODOLOGY/PRINCIPAL

findingsWe first examined M. tuberculosis-specific IFN-gamma and H. pylori antibody responses in 339 healthy Northern Californians undergoing routine tuberculin skin testing. Of 97 subjects (29%) meeting criteria for latent tuberculosis (TB) infection (LTBI), 45 (46%) were H. pylori seropositive. Subjects with LTBI who were H. pylori-seropositive had 1.5-fold higher TB antigen-induced IFN-gamma responses (p = 0.04, ANOVA), and a more Th-1 like cytokine profile in peripheral blood mononuclear cells, compared to those who were H. pylori seronegative. To explore an association between H. pylori infection and clinical outcome of TB exposure, we evaluated H. pylori seroprevalence in baseline samples from two high risk TB case-contact cohorts, and from cynomolgus macaques experimentally challenged with M. tuberculosis. Compared to 513 household contacts who did not progress to active disease during a median 24 months follow-up, 120 prevalent TB cases were significantly less likely to be H. pylori infected (AOR: 0.55, 95% CI 0.0.36-0.83, p = 0.005), though seroprevalence was not significantly different from non-progressors in 37 incident TB cases (AOR: 1.35 [95% CI 0.63-2.9] p = 0.44). Cynomolgus macaques with natural H. pylori infection were significantly less likely to progress to TB 6 to 8 months after M. tuberculosis challenge (RR: 0.31 [95% CI 0.12-0.80], p = 0.04). CONCLUSIONS/SIGNIFICANCE: H. pylori infection may induce bystander effects that modify the risk of active TB in humans and non-human primates. That immunity to TB may be enhanced by exposure to other microbial agents may have important implications for vaccine development and disease control.

Indexed as

AdolescentAdultAgedAged, 80 and overAnalysis of VarianceAnimalsAntibodies, BacterialCase-Control StudiesChildChild, PreschoolCohort StudiesFemaleHelicobacter InfectionsHelicobacter pyloriHumansInterferon-gammaAntibodies, BacterialInterferon-gamma

Identifiers

PMID20098711
PMCPMC2808360
OpenAlexW2085874531

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.