Evidence map›Paper›PMID 23148654›Full record

ArticleBMC infectious diseases2012

Pandemic influenza A/H1N1 virus infection and TNF, LTA, IL1B, IL6, IL8, and CCL polymorphisms in Mexican population: a case-control study.

Guadalupe Morales-García, Ramcés Falfán-Valencia, Román Alejandro García-Ramírez, Ángel Camarena, Alejandra Ramirez-Venegas, Manuel Castillejos-López, Martha Pérez-Rodríguez, César González-Bonilla, Concepción Grajales-Muñíz, Víctor Borja-Aburto and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
3.5field-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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. 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
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  7. Review
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  10. Hypercytokinemia and Pathogen-Host Interaction in COVID-19.Journal of inflammation research · 2020
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  14. International journal of chronic obstructive pulmonary disease · 2018
    Article
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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

11 authors at 2 institutions in 1 country.

Guadalupe Morales-GarcíaCoordinación de Investigación en Salud, Instituto Mexicano del Seguro Social (IMSS), Torre Academia Nacional de Medicina 4to piso, Av, Cuauhtémoc 330, 06720 México, DF, México.
Ramcés Falfán-Valencia
Román Alejandro García-Ramírez
Ángel Camarena
Alejandra Ramirez-Venegas
Manuel Castillejos-López
Martha Pérez-Rodríguez
César González-Bonilla
Concepción Grajales-Muñíz
Víctor Borja-Aburto
Juan Manuel Mejía-Aranguré
Mexican Social Security Institute · MXInstituto Nacional de Enfermedades Respiratorias · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSome patients have a greater response to viral infection than do others having a similar level of viral replication. Hypercytokinemia is the principal immunopathological mechanism that contributes to a severer clinical course in cases of influenza A/H1N1. The benefit produced, or damage caused, by these cytokines in severe disease is not known. The genes that code for these molecules are polymorphic and certain alleles have been associated with susceptibility to various diseases. The objective of the present study was to determine whether there was an association between polymorphisms of TNF, LTA, IL1B, IL6, IL8, and CCL1 and the infection and severity of the illness caused by the pandemic A/H1N1 in Mexico in 2009.

methodsCase-control study. The cases were patients confirmed with real time PCR with infection by the A/H1N1 pandemic virus. The controls were patients with infection like to influenza and non-familial healthy contacts of the patients with influenza. Medical history and outcome of the disease was registered. The DNA samples were genotyped for polymorphisms TNF rs361525, rs1800629, and rs1800750; LTA rs909253; IL1B rs16944; IL6 rs1818879; IL8 rs4073; and CCL1 rs2282691. Odds ratio (OR) and the 95% confidence interval (95% CI) were calculated. The logistic regression model was adjusted by age and severity of the illness in cases.

resultsInfection with the pandemic A/H1N1 virus was associated with the following genotypes: TNF rs361525 AA, OR = 27.00; 95% CI = 3.07-1248.77); LTA rs909253 AG (OR = 4.33, 95% CI = 1.82-10.32); TNF rs1800750 AA (OR = 4.33, 95% CI = 1.48-12.64); additionally, LTA rs909253 AG showed a limited statistically significant association with mortality (p = 0.06, OR = 3.13). Carriers of the TNF rs1800629 GA genotype were associated with high levels of blood urea nitrogen (p = 0.05); those of the TNF rs1800750 AA genotype, with high levels of creatine phosphokinase (p=0.05). The IL1B rs16944 AA genotype was associated with an elevated number of leukocytes (p <0.001) and the IL8 rs4073 AA genotype, with a higher value for PaO2 mm Hg.

conclusionThe polymorphisms of genes involved in the inflammatory process contributed to the severity of the clinical behavior of infection by the pandemic influenza A/H1N1 virus.

Indexed as

Genetic Predisposition to DiseaseGenetic VariationAdolescentAdultAgedAged, 80 and overCase-Control StudiesCytokinesFemaleHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleMexicoMiddle AgedSeverity of Illness IndexCytokines

Identifiers

PMID23148654
PMCPMC3534505
OpenAlexW2050032631

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.