Evidence map›Paper›PMID 11358905›Full record

ArticleGut2001

Variable phenotypic presentation of iron overload in H63D homozygotes: are genetic modifiers the cause?

P Aguilar-Martinez, M Bismuth, M C Picot, C Thelcide, G P Pageaux, F Blanc, P Blanc, J F Schved, D Larrey

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

  1. Guideline
  2. Genetic history of Scythia.Science advances · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Haemochromatosis.Nature reviews. Disease primers · 2018
    Review
  7. HFE Variants and the Expression of Iron-Related Proteins in Breast Cancer-Associated Lymphocytes and Macrophages.Cancer microenvironment : official journal of the International Cancer Microenvironment Society · 2016
    Article
  8. Article
  9. Review
  10. Iron overload is rare in patients homozygous for the H63D mutation.Canadian journal of gastroenterology & hepatology · 2014
    Article
  11. Brain structure in healthy adults is related to serum transferrin and the H63D polymorphism in the HFE gene.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. HFE gene in primary and secondary hepatic iron overload.World journal of gastroenterology · 2007
    Review
  19. A diagnostic approach to hemochromatosis.Canadian journal of gastroenterology = Journal canadien de gastroenterologie · 2006
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

P Aguilar-MartinezLaboratory of Haematology, CHU of Montpellier, 34295 Montpellier, France. p-martinez@chu-montpellier.fr
M Bismuth
M C Picot
C Thelcide
G P Pageaux
F Blanc
P Blanc
J F Schved
D Larrey
Centre Hospitalier Universitaire de Montpellier · FRHôpital Saint Eloi · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFirst considered as a polymorphism of the HFE gene, the H63D mutation is now widely recognised as a haemochromatosis associated allele. But few H63D homozygotes with clinical manifestations of hereditary haemochromatosis (HH) have been reported. Concurrently, an increasing number of genes have been shown to interact with HFE in iron metabolism.

aimsTo describe the clinical expression of iron overload (IO) associated with H63D homozygosity, and search for potential genetic modifiers (within the HFE or other genes) that could explain the variability of the phenotypes. PATIENTS AND

methodsWe retrospectively analysed the clinical phenotype of 56 H63D homozygotes referred for a personal or family history of IO. For each subject we examined intragenic HFE haplotypes and transferrin receptor (TfR) gene polymorphisms and searched for the Y250X mutation on the TFR2 gene. Additionally, we sequenced the HFE gene of H63D homozygotes with HH.

resultsFifty of 56 subjects had biological and/or clinical abnormalities of iron metabolism. Up to two thirds of patients (n=34) had no acquired cause of IO. Among these, 12 had a phenotypic diagnosis of HH. In the iron loaded group there was a strong prevalence of male patients. No correlation was found between the potential genetic modifiers and phenotypes. No additional mutation of HFE was identified.

conclusionThe variable phenotypes associated with H63D homozygosity do not appear to be linked to other HFE mutations, to the TFR2 Y250X mutation, or to HFE or TfR gene intragenic polymorphisms. The exact role of H63D homozygosity in IO and HH needs to be further investigated in unselected populations.

Indexed as

HomozygoteAdultAgedFemaleHaplotypesHemochromatosisHumansIron OverloadMaleMiddle AgedMutationPhenotypePolymorphism, GeneticReceptors, TransferrinRetrospective StudiesSequence Analysis, DNAReceptors, Transferrin

Identifiers

PMID11358905
PMCPMC1728323
OpenAlexW2162618689

What OpenQuestion holds

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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.