Evidence map›Paper›PMID 18698679›Full record

ArticleWorld journal of gastroenterology2008

Single nucleotide polymorphism in the tumor necrosis factor-alpha gene affects inflammatory bowel diseases risk.

Lynnette R Ferguson, Claudia Huebner, Ivonne Petermann, Richard B Gearry, Murray L Barclay, Pieter Demmers, Alan McCulloch, Dug Yeo Han

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
3.4field-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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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  6. In severe acne vulgaris, TNF-α gene variants are connected to increased TNF-α gene expression and insulin resistance.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024
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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

8 authors at 4 institutions in 1 country.

Lynnette R FergusonDiscipline of Nutrition, the University of Auckland, Auckland, New Zealand. l.ferguson@auckland.ac.nz
Claudia Huebner
Ivonne Petermann
Richard B Gearry
Murray L Barclay
Pieter Demmers
Alan McCulloch
Dug Yeo Han
University of Auckland · NZChristchurch Hospital · NZAgResearch · NZPlant & Food Research · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate the role that single nucleotide polymorphisms (SNPs) in the promoter of the tumour necrosis factor-alpha (TNF-alpha) gene play in the risk of inflammatory bowel diseases (IBDs) in a New Zealand population, in the context of international studies.

methodsDNA samples from 388 patients with Crohn's disease (CD), 405 ulcerative colitis (UC), 27 indeterminate colitis (IC) and 201 randomly selected controls, from Canterbury, New Zealand were screened for 3 common polymorphisms in the TNF-alpha receptor: -238 G-->A, -308 G-->A and -857C-->T, using a Taqman assay. A meta-analysis was performed on the data obtained on these polymorphisms combined with that from other published studies.

resultsIndividuals carrying the -308 G/A allele had a significantly (OR = 1.91, c2 = 17.36, P < 0.0001) increased risk of pancolitis, and a 1.57-fold increased risk (OR = 1.57, c2 = 4.34, P = 0.037) of requiring a bowel resection in UC. Carrying the -857 C/T variant decreased the risk of ileocolonic CD (OR = 0.56, c2 = 4.32, P = 0.037), and the need for a bowel resection (OR = 0.59, c2 = 4.85, P = 0.028). The risk of UC was reduced in individuals who were smokers at diagnosis, (OR = 0.48, c2 = 4.86, P = 0.028).

conclusionTNF-alpha is a key cytokine known to play a role in inflammatory response, and the locus for the gene is found in the IBD3 region on chromosome 6p21, known to be associated with an increased risk for IBD. The -308 G/A SNP in the TNF-alpha promoter is functional, and may account in part for the increased UC risk associated with the IBD3 genomic region. The -857 C/T SNP may decrease IBD risk in certain groups. Pharmaco- or nutrigenomic approaches may be desirable for individuals with such affected genotypes.

Indexed as

AdolescentAdultCase-Control StudiesChildChild, PreschoolChromosomes, Human, Pair 6Colitis, UlcerativeCrohn DiseaseFemaleGenetic Predisposition to DiseaseHaplotypesHumansInfantInflammatory Bowel DiseasesMaleNew ZealandTumor Necrosis Factor-alpha

Identifiers

PMID18698679
PMCPMC2738789
OpenAlexW2018123417

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.