Evidence map›Paper›PMID 19438595›Full record

ArticleClinical and experimental immunology2009

Serum bactericidal activity against Helicobacter pylori in patients with hypogammaglobulinaemia.

I M E Desar, M van Deuren, T Sprong, J B M J Jansen, F Namavar, C M Vandenbroucke-Grauls, J W M van der Meer

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

  1. Revisiting X-linked agammaglobulinemia.Journal of human immunity · 2025
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  10. Age-related variations in theCentral-European journal of immunology · 2018
    Article
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  17. Campylobacter jejuni bacteremia and Helicobacter pylori in a patient with X-linked agammaglobulinemia.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2010
    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

7 authors at 3 institutions in 1 country.

I M E DesarDepartment of General Internal Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
M van Deuren
T Sprong
J B M J Jansen
F Namavar
C M Vandenbroucke-Grauls
J W M van der Meer
Amsterdam UMC Location VUmc · NLRadboud University Nijmegen · NLRadboud University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The two major primary antibody deficiency disorders are X-linked hypogammaglobulinaemia (XLA) and common variable immunodeficiency (CVID). CVID patients have an elevated risk for gastric cancer and extra-nodal marginal zone lymphoma. Both diseases are associated with Helicobacter pylori infection. We investigated whether antibody deficiency leads to defective serum bactericidal activity against H. pylori. We also investigated the correlation with immunoglobulin (Ig)M levels and observed the terminal complement complex (TCC) activity. Sera of 13 CVID patients (four H. pylori positive), one patient with hyper-IgM syndrome, one patient with Good syndrome (both H. pylori positive), five XLA patients, four H. pylori seropositive controls, four H. pylori seronegative controls and a sample of pooled human serum (PHS) were incubated in vitro with bacterial suspensions of H. pylori for 30 min. After 72 h of culture, colony-forming units were counted. TCC formation was measured by enzyme-linked immunosorbent assay. We found that normal human serum is bactericidal for H. pylori, whereas heat-inactivated serum shows hardly any killing of H. pylori. Serum (1%) of hypogammaglobulinaemia patients has a decreased bactericidal activity against H. pylori. Helicobacter pylori-positive (HP(+)) normal individuals show more than 90% killing of H. pylori, whereas CVID patients show 35% killing (P = 0.007) and XLA patients only 19% (P = 0.003). Serum (1%) of HP(+) volunteers showed significantly better killing compared with serum of H. pylori-negative (HP(-)) volunteers (P = 0.034). No correlation between (substituted) IgG levels and serum bactericidal activity was found, but a weak correlation between total serum IgM and serum bactericidal activity was found. In conclusion, serum bactericidal activity against H. pylori is decreased in patients with hypogammaglobulinaemia. Heat treatment of the serum abolished the bactericidal capacity, indicating that complement activity is essential for the bactericidal effect.

Indexed as

Blood Bactericidal ActivityHelicobacter pyloriAdultAgammaglobulinemiaAgedColony Count, MicrobialCommon Variable ImmunodeficiencyComplement Membrane Attack ComplexHelicobacter InfectionsHumansMiddle AgedOpportunistic InfectionsX-Linked Combined Immunodeficiency DiseasesYoung AdultComplement Membrane Attack Complex

Identifiers

PMID19438595
PMCPMC2691971
OpenAlexW1976586403

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.