Evidence map›Paper›PMID 18716131›Full record

ArticleBlood2008

Tumor necrosis factor SNP haplotypes are associated with iron deficiency anemia in West African children.

Sarah H Atkinson, Kirk A Rockett, Gareth Morgan, Philip A Bejon, Giorgio Sirugo, Maria A O'Connell, Neil Hanchard, Dominic P Kwiatkowski, Andrew M Prentice

Open access · greenAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Inflammatory markers in geriatric anemia: A study from North India.Journal of family medicine and primary care · 2023
    Article
  5. Review
  6. Article
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  15. Article
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  18. Implications of malaria on iron deficiency control strategies.Advances in nutrition (Bethesda, Md.) · 2012
    Article
  19. Review
  20. Iron homeostasis and the inflammatory response.Annual review of nutrition · 2010
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Sarah H AtkinsonMedical Research Council (MRC) Keneba and MRC Laboratories, Banjul, The Gambia. sarah.atkinson@paediatrics.ox.ac.uk
Kirk A Rockett
Gareth Morgan
Philip A Bejon
Giorgio Sirugo
Maria A O'Connell
Neil Hanchard
Dominic P Kwiatkowski
Andrew M Prentice
MRC Unit the Gambia · GMUniversity of Oxford · GBCentre for Human Genetics · GBMRC Human Nutrition Research · GB

Funding

Medical Research Council G19/9Medical Research Council MC_U105960399Medical Research Council MC_U123292699Medical Research Council MC_U123292700
6 · The paper itself

Abstract

Plasma levels of tumor necrosis factor-alpha (TNF-alpha) are significantly raised in malaria infection and TNF-alpha is thought to inhibit intestinal iron absorption and macrophage iron release. This study investigated putative functional single nucleotide polymorphisms (SNPs) and haplotypes across the major histocompatibility complex (MHC) class III region, including TNF and its immediate neighbors nuclear factor of kappa light polypeptide gene enhancer in B cells (lkappaBL), inhibitor-like 1 and lymphotoxin alpha (LTA), in relation to nutritional iron status and anemia, in a cohort of 780 children across a malaria season. The prevalence of iron deficiency anemia (IDA) increased over the malaria season (P < .001). The TNF(-308) AA genotype was associated with an increased risk of iron deficiency (adjusted OR 8.1; P = .001) and IDA (adjusted OR 5.1; P = .01) at the end of the malaria season. No genotypes were associated with IDA before the malaria season. Thus, TNF appears to be a risk factor for iron deficiency and IDA in children in a malaria-endemic environment and this is likely to be due to a TNF-alpha-induced block in iron absorption.

Indexed as

Polymorphism, Single NucleotideAbsorptionAdaptor Proteins, Signal TransducingAnemia, Iron-DeficiencyChildChild, PreschoolCohort StudiesEndemic DiseasesGambiaHaplotypesHistocompatibility Antigens Class IIHumansIronMalariaMaleRisk FactorsAdaptor Proteins, Signal TransducingHistocompatibility Antigens Class IIIronNFKBIL1 protein, humanTumor Necrosis Factor-alpha

Identifiers

PMID18716131
PMCPMC2581977
OpenAlexW2047948366

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.