Evidence map›Paper›PMID 21737555›Full record

ArticleThe European respiratory journal2012

Genetic variants associated with severe pneumonia in A/H1N1 influenza infection.

J Zúñiga, I Buendía-Roldán, Y Zhao, L Jiménez, D Torres, J Romo, G Ramírez, A Cruz, G Vargas-Alarcon, C-C Sheu and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in The European respiratory journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 2 pooled it
6.0field-weighted citation impact, top 3% 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

65 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Matrix Metalloproteinase-8 Deficiency Alters the Balance Between Viral Clearance and Immunopathology in H1N1 Infection.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Review
  5. A Transcriptomic Signature of Depressive Symptoms in Late Life.Biological psychiatry global open science · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Host genetic effects in pneumonia.American journal of human genetics · 2021
    Article
  17. Review
  18. Article
  19. Review
  20. Article

5 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

16 authors at 3 institutions in 4 countries.

J ZúñigaInstituto Nacional deEnfermedades Respiratorias IsmaelCosio Villegas, Universidad Nacional Autónoma de México, México City, Mexico.
I Buendía-Roldán
Y Zhao
L Jiménez
D Torres
J Romo
G Ramírez
A Cruz
G Vargas-Alarcon
C-C Sheu
F Chen
L Su
A M Tager
A Pardo
M Selman
D C Christiani
Harvard University · USUniversidad Xicotepetl · MXInstituto Nacional de Enfermedades Respiratorias · MX

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
MOLECULAR EPIDEMIOLOGY OF ARDSR01HL060710 · NHLBI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 2000 to 2015
$8.4M
The LPA Pathway in Lung Fibrosis: Novel Mediators and New Therapeutic TargetsR01HL095732 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI TAGER, ANDREW M · 2009 to 2010
$922k
NHLBI NIH HHS HL060710NHLBI NIH HHS HL095732NHLBI NIH HHS R01 HL060710NHLBI NIH HHS R01 HL095732NIEHS NIH HHS ES00002NIEHS NIH HHS P30 ES000002
6 · The paper itself

Abstract

The A/H1N1 influenza strain isolated in Mexico in 2009 caused severe pulmonary illness in a small number of exposed individuals. Our objective was to determine the influence of genetic factors on their susceptibility. We carried out a case-control association study genotyping 91 patients with confirmed severe pneumonia from A/H1N1 infection and 98 exposed but asymptomatic household contacts, using the HumanCVD BeadChip (Illumina, San Diego, CA, USA). Four risk single-nucleotide polymorphisms were significantly (p<0.0001) associated with severe pneumonia: rs1801274 (Fc fragment of immunoglobulin G, low-affinity IIA, receptor (FCGR2A) gene, chromosome 1; OR 2.68, 95% CI 1.69-4.25); rs9856661 (gene unknown, chromosome 3; OR 2.62, 95% CI 1.64-4.18); rs8070740 (RPA interacting protein (RPAIN) gene, chromosome 17; OR 2.67, 95% CI 1.63-4.39); and rs3786054 (complement component 1, q subcomponent binding protein (C1QBP) gene, chromosome 17; OR 3.13, 95% CI 1.89-5.17). All SNP associations remained significant after adjustment for sex and comorbidities. The SNPs on chromosome 17 were in linkage disequilibrium. These findings revealed that gene polymorphisms located in chromosomes 1 and 17 might influence susceptibility to development of severe pneumonia in A/H1N1 infection. Two of these SNPs are mapped within genes (FCGR2A, C1QBP) involved in the handling of immune complexes and complement activation, respectively, suggesting that these genes may confer risk due to increased activation of host immunity.

Indexed as

Genetic VariationInfluenza A Virus, H1N1 SubtypeAdultCarrier ProteinsCase-Control StudiesChromosomes, Human, Pair 1Chromosomes, Human, Pair 17FemaleGenetic Predisposition to DiseaseHumansInfluenza, HumanLinkage DisequilibriumMaleMexicoMiddle AgedMitochondrial ProteinsC1QBP protein, humanCarrier ProteinsFCGR2A protein, humanMitochondrial ProteinsReceptors, IgG

Identifiers

PMID21737555
PMCPMC3816497
OpenAlexW2106460540

What OpenQuestion holds

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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.