Evidence map›Paper›PMID 26657940›Full record

ArticlePloS one2015

TNF, IL6, and IL1B Polymorphisms Are Associated with Severe Influenza A (H1N1) Virus Infection in the Mexican Population.

Román Alejandro García-Ramírez, Alejandra Ramírez-Venegas, Roger Quintana-Carrillo, Ángel Eduardo Camarena, Ramcés Falfán-Valencia, Juan Manuel Mejía-Aranguré

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. C-reactive protein as a biomarker of severe H1N1 influenza.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2019
    Pooled it
  3. Review
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  16. Targeting ectromelia virus and TNF/NF-κB or STAT3 signaling for effective treatment of viral pneumonia.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Observational
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  19. Genes · 2021
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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

6 authors at 2 institutions in 1 country.

Román Alejandro García-RamírezCoordination of Health Research, Mexican Institute of Social Security (IMSS), Av. Cuauhtémoc 330, 06720, Mexico, D. F., México.
Alejandra Ramírez-VenegasResearch Department on Smoking and COPD, National Institute of Respiratory Diseases, Ismael Cosío Villegas. Mexico, D. F., 14080, México.
Roger Quintana-CarrilloResearch Department on Smoking and COPD, National Institute of Respiratory Diseases, Ismael Cosío Villegas. Mexico, D. F., 14080, México.
Ángel Eduardo CamarenaHLA Laboratory, National Institute of Respiratory Diseases, Ismael Cosio Villegas, México, D. F., 14080, México.
Ramcés Falfán-ValenciaHLA Laboratory, National Institute of Respiratory Diseases, Ismael Cosio Villegas, México, D. F., 14080, México.
Juan Manuel Mejía-AranguréCoordination of Health Research, Mexican Institute of Social Security (IMSS), Av. Cuauhtémoc 330, 06720, Mexico, D. F., México.
Mexican Social Security Institute · MXUniversidad Nacional Autónoma de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypercytokinemia is the main immunopathological mechanism contributing to a more severe clinical course in influenza A (H1N1) virus infections. Most patients infected with the influenza A (H1N1) pdm09 virus had increased systemic levels of pro-inflammatory cytokines; including interleukin IL-6, IL-8, and tumor necrosis factor-alpha (TNF-α). We propose that single-nucleotide polymorphisms (SNPs) in the promoter regions of pro-inflammatory genes are associated with the severity of influenza A (H1N1) pdm09 virus infection.

methods145 patients with influenza A (H1N1) (pA/H1N1), 133 patients with influenza-like illness (ILI), and 360 asymptomatic healthy contacts (AHCs) were included. Eleven SNPs were genotyped in six genes (TNF, LT, IL1B, IL6, CCL1, and IL8) using real-time PCR; the ancestral genotype was used for comparison. Genotypes were correlated with 27 clinical severity variables. Ten cytokines (GM-CSF, TNF-α, IL-2, IL-1β, IL-6, IL-8, IFN-γ, IL-10, IL-5, and IL-4) were measured on a Luminex 100.

resultsThe IL6 rs1818879 (GA) heterozygous genotype was associated with severe influenza A (H1N1) virus infection (odds ratio [OR] = 5.94, 95% confidence interval [CI] 3.05-11.56), and two IL1B SNPs, rs16944 AG and rs3136558 TC, were associated with a decreased risk of infection (OR = 0.52 and OR = 0.51, respectively). Genetic susceptibility was determined (pA/H1N1 vs. AHC): the LTA rs909253 TC heterozygous genotype conferred greater risk (OR = 1.9), and a similar association was observed with the IL1B rs3136558 CC genotype (OR = 1.89). Additionally, severely ill patients were compared with moderately ill patients. The TNF-238 GA genotype was associated with an increased risk of disease severity (OR = 16.06, p = 0.007). Compared with ILIs, patients with severe pA/H1N1 infections exhibited increased serum IL-5 (p <0.001) and IL-6 (p  =  0.007) levels.

conclusionsThe TNF gene was associated with disease severity, whereas IL1B and IL6 SNPs were associated with influenza A (H1N1) virus infection.

Indexed as

AdultCase-Control StudiesFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanInterleukin-1betaInterleukin-6MaleMexicoMiddle AgedPolymorphism, Single NucleotideRisk FactorsIL1B protein, humanInterleukin-1betaInterleukin-6Tumor Necrosis Factor-alpha

Identifiers

PMID26657940
PMCPMC4682834
OpenAlexW2419181931

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.