Evidence map›Paper›PMID 22071378›Full record

SynthesisNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2011

Association of the CHRNA5-A3-B4 gene cluster with heaviness of smoking: a meta-analysis.

Jennifer J Ware, Marianne B M van den Bree, Marcus R Munafò

Open access · bronzeAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 5 pooled it
6.1field-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

81 citing papers in PubMed, 5 syntheses or guidelines pooled it, 124 citations in OpenAlex.

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  12. Nicotinic Receptor Alpha-5 Subunit Gene Polymorphism is Associated With Heavy Smoking Under a Range of Nicotine Dosing Conditions.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Article
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  14. Selective αInternational journal of molecular sciences · 2023
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  20. Roma Socioeconomic Status Has a Higher Impact on Smoking Behaviour than Genetic Susceptibility.International journal of environmental research and public health · 2021
    Article

21 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

3 authors at 1 institution in 1 country.

Jennifer J WareDepartment of Psychological Medicine, Cardiff University, 1 Floor Neuadd Merionydd, Heath Park Campus, Cardiff CF14 4YS, UK. warejj@cardiff.ac.uk.
Marianne B M van den Bree
Marcus R Munafò
Cardiff University · GB

Funding

British Heart FoundationCancer Research UKMedical Research CouncilWellcome Trust 086684
6 · The paper itself

Abstract

introductionVariation in the CHRNA5-A3-B4 gene cluster is a promising candidate region for smoking behavior and has been linked to multiple smoking-related phenotypes (e.g., nicotine dependence) and diseases (e.g., lung cancer). Two single nucleotide polymorphisms (SNPs), rs16969968 in CHRNA5 and rs1051730 in CHRNA3, have generated particular interest.

methodsWe evaluated the published evidence for association between rs16969968 (k = 27 samples) and rs1051730 (k = 44 samples) SNPs with heaviness of smoking using meta-analytic techniques. We explored which SNP provided a stronger genetic signal and investigated study-level characteristics (i.e., ancestry, disease state) to establish whether the strength of association differed across populations. We additionally tested for small study bias and explored the impact of year of publication. RESULTS AND

conclusionsMeta-analysis indicated compelling evidence of an association between the rs1051730/rs16966968 variants and daily cigarette consumption (fixed effects: B = 0.91, 95% CI = 0.77, 1.06, p < .001; random effects: B = 1.01, 95% CI = 0.81, 1.22, p < .001), equivalent to a per-allele effect of approximately 1 cigarette/day. SNP rs1051730 was found to provide a stronger signal than rs16966968 in stratified analyses (p(diff) = .028), although this difference was only qualitatively observed in the subset of samples that provided data on both SNPs. While the functional relevance of rs1051730 is unknown, it may be a strong tagging SNP for functional haplotypes in this region.

Indexed as

Multigene FamilyFemaleGenetic Predisposition to DiseaseHumansLinkage DisequilibriumLung NeoplasmsMaleNerve Tissue ProteinsPolymorphism, Single NucleotideReceptors, NicotinicSmokingTobacco Use DisorderCHRNA5 protein, humanCHRNB4 protein, humanNerve Tissue ProteinsReceptors, Nicotinic

Identifiers

PMID22071378
PMCPMC3223575
OpenAlexW1990372573

What OpenQuestion holds

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LicenceCC BY-NC
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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.