Cited by 41Iron Metabolism and DisordersGenetic Associations and EpidemiologyNeurological diseases and metabolism

Novel loci affecting iron homeostasis and their effects in individuals at risk for hemochromatosis

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Benyamin, Beben, Esko, Tonu, Ried, Janina S., Radhakrishnan, Aparna, Vermeulen, Sita H., Traglia, Michela, Gögele, Martin, Anderson, Denise +62 more·2014·Nature Communications

Abstract

Variation in body iron is associated with or causes diseases, including anaemia and iron overload. Here, we analyse genetic association data on biochemical markers of iron status from 11 European-population studies, with replication in eight additional cohorts (total up to 48,972 subjects). We find 11 genome-wide-significant (P<5 × 10(-8)) loci, some including known iron-related genes (HFE, SLC40A1, TF, TFR2, TFRC, TMPRSS6) and others novel (ABO, ARNTL, FADS2, NAT2, TEX14). SNPs at ARNTL, TF, and TFR2 affect iron markers in HFE C282Y homozygotes at risk for hemochromatosis. There is substantial overlap between our iron loci and loci affecting erythrocyte and lipid phenotypes. These results will facilitate investigation of the roles of iron in disease.

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Crossref · 10.1038/ncomms5926

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  • The three SNPs collectively explain approximately 3.8% of the variation in serum iron.

    “collectively explain approximately 3.8% of the variation in serum iron [2,8].”

    From Associations of genetically determined iron status across the phenome: A mendelian randomization study (2019) · cites this paper as [2]

    The Results section ('SNP and gene associations'; page not available) reports that lead SNPs at eleven significant loci explained 3.4% of serum-iron variance in the replication cohorts. It supports the general point that SNPs explain some variation in serum iron, but not the attributed figure of approximately 3.8% for three SNPs. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Three genetic variants (rs1800562 and rs1799945 in HFE and rs855791 in TMPRSS6) associate with increased serum iron, ferritin, and transferrin saturation and decreased transferrin levels, serving as instruments for systemic iron status.

    “3 genetic variants (rs1800562 and rs1799945 in the hemochromatosis gene [HFE] and rs855791 in the transmembrane protease serine 6 gene [TMPRSS6]) that associate with increased serum iron, ferritin, and transferrin saturation and decreased transferrin levels, thus serving as instruments for systemic iron status.”

    From Associations of genetically determined iron status across the phenome: A mendelian randomization study (2019) · cites this paper as [2]

    The Results section (page unavailable) identifies rs1800562, rs1799945 and rs855791 as lead SNPs in HFE and TMPRSS6. The Discussion (page unavailable) reports that these loci mainly affect serum iron and transferrin saturation, have smaller effects on ferritin, and also affect transferrin. Our copy does not establish the claimed increase in all three measures and decrease in transferrin for each of the three variants. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • The Genetics of Iron Status Consortium GWAS on 48,972 European subjects identified the 3 SNPs rs1800562, rs1799945, and rs855791.

    “A genome-wide association study (GWAS) performed by the Genetics of Iron Status Consortium on 48,972 European subjects (combined Discovery [N = 23,986] and Replication [N = 24,986] cohorts, 55% female) identified 3 such single-nucleotide polymorphisms (SNPs): rs1800562 and rs1799945 in the hemochromatosis (HFE) gene and rs855791 in the transmembrane protease serine 6 (TMPRSS6) gene [2,8,10].”
  • The two HFE SNPs are in low linkage disequilibrium (LD r2 < 0.01) in combined European populations.

    “The two SNPs in the HFE gene were in low linkage disequilibrium (LD r2 < 0.01) when considering combined European populations with the LDlink resource [2,17].”

    From Associations of genetically determined iron status across the phenome: A mendelian randomization study (2019) · cites this paper as [2]

    The Methods section on HFE C282Y homozygotes identifies rs1800562, but does not report linkage disequilibrium between two HFE SNPs. Searches for the SNP pair, LDlink, and the claimed r² threshold found no measurement for combined European populations in our copy. (LLM, conf=0.74)

    Experimental — accuracy not yet measured
  • TMPRSS6 genetic variants modulate iron and hematologic traits in several genome-wide association studies, alter hepcidin levels in normal subjects and might confer susceptibility/resistance to iron deficiency, as observed in blood donors.

    “TMPRSS6 genetic variants modulate iron and hematologic traits in several genome-wide association studies,58 alter hepcidin levels in normal subjects86 and might confer susceptibility/resistance to iron deficiency, as observed in blood donors.87”

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Authors
Benyamin, B., Esko, T., Ried, J. S., Radhakrishnan, A., Vermeulen, S. H., Traglia, M., Gögele, M., Anderson, D., Broer, L., Podmore, C., Luan, J., Kutalik, Z., Sanna, S., van der Meer, P., Tanaka, T., Wang, F., Westra, H.-J., Franke, L., Mihailov, E., Milani, L., Hälldin, J., Winkelmann, J., Meitinger, T., Thiery, J., Peters, A., Waldenberger, M., Rendon, A., Jolley, J., Sambrook, J., Kiemeney, L. A., Sweep, F. C., Sala, C. F., Schwienbacher, C., Pichler, I., Hui, J., Demirkan, A., Isaacs, A., Amin, N., Steri, M., Waeber, G., Verweij, N., Powell, J. E., Nyholt, D. R., Heath, A. C., Madden, P. A. F., Visscher, P. M., Wright, M. J., Montgomery, G. W., Martin, N. G., Hernandez, D., Bandinelli, S., van der Harst, P., Uda, M., Vollenweider, P., Scott, R. A., Langenberg, C., Wareham, N. J., InterAct Consortium, van Duijn, C., Beilby, J., Pramstaller, P. P., Hicks, A. A., Ouwehand, W. H., Oexle, K., Gieger, C., Metspalu, A., Camaschella, C., Toniolo, D., Swinkels, D. W., & Whitfield, J. B.
Affiliations
  • The University of Queensland (AU)
  • Helmholtz Munich (DE)
  • University of Cambridge (GB)
  • Radboud University Medical Center (NL)
  • IRCCS Materno Infantile Burlo Garofolo (IT)
  • Eurac Research (IT)
  • The Kids Research Institute Australia (AU)
  • Erasmus MC (NL)
  • Institute of Genetic and Biomedical Research (IT)
  • National Institute on Aging (US)
  • Zhejiang University (CN)
  • University Medical Center Groningen (NL)
  • University of Tartu (EE)
  • TUM Klinikum (DE)
  • University Hospital Leipzig (DE)
  • NHS Blood and Transplant (GB)
  • IRCCS Ospedale San Raffaele (IT)
  • The University of Western Australia (AU)
  • Centre Hospitalier Universitaire Vaudois (CH)
  • QIMR Berghofer Medical Research Institute (AU)
  • Washington University in St. Louis (US)
  • National Institutes of Health (US)
  • Azienda Sanitaria di Firenze (IT)
  • Vita-Salute San Raffaele University (IT)
Corresponding author
  • Benyamin, Beben
  • Whitfield, John B.
Venue
Nature Communications
Published
2014-10-29
Volume
5
Issue
1
Pages
4926-4926
ISSN
2041-1723 (ISSN-L)
OpenAlex
W1498265623
Cited by
30
References
70
Citations by year
2025: 1 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 4 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 1
FWCI
0.95
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, other-oa)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion, cc-by)
  • PubMed Central (acceptedVersion)
  • QUT ePrints (Queensland University of Technology) (submittedVersion)
  • IRIS (submittedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
  • RePub (Erasmus University Rotterdam) (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • Site cant be reached (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion, other-oa)
  • Radboud Repository (Radboud University) (submittedVersion, other-oa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
  • Faculty of Health; Institute of Health and Biomedical Innovation
  • Apollo
Funders
  • Wellcome Trust (097451/Z/11/Z)
  • National Institute for Health and Care Research (NF-SI-0510-10214, RP-PG-0310-1002, NF-SI-0513-10151, NF-SI-0512-10135)
  • British Heart Foundation (RG/09/012/28096)
  • National Institutes of Health
  • Medical Research Council (MC_UU_12015/1)
  • National Health and Medical Research Council (552498)
  • National Institute on Alcohol Abuse and Alcoholism (R01AA014041)
  • National Institute of Biomedical Imaging and Bioengineering (U54EB020403)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
iron homeostasis, hemochromatosis, C282Y mutation, genetic association, iron status biomarkers, iron deficiency, anemia, iron overload, Bmal1, transferrin, transferrin receptor 2, SLC40A1, FADS2, NAT2, lipid phenotypes, European populations
MeSH terms
Adult, Chromosomes, Human, Pair 7, Ferritins, Gene Expression Regulation, Hemochromatosis, Homeostasis, Humans, Iron, Lipids, Phenotype, Risk Factors, Transferrin, Reproducibility of Results, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Genetic Loci, Genetic Association Studies

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