Evidence map›Paper›PMID 19880490›Full record

SynthesisBlood2010

A genome-wide association analysis of serum iron concentrations.

Toshiko Tanaka, Cindy N Roy, Wenliang Yao, Amy Matteini, Richard D Semba, Dan Arking, Jeremy D Walston, Linda P Fried, Andrew Singleton, Jack Guralnik and 4 more

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Blood, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 5 pooled it
7.2field-weighted citation impact, top 2% 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

70 citing papers in PubMed, 5 syntheses or guidelines pooled it, 159 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. The Association ofNutrients · 2019
    Trial
  7. Genetic factors associated with iron storage in Australian blood donors.Blood transfusion = Trasfusione del sangue · 2018
    Trial
  8. Polymorphism rs259983 of theThe Egyptian journal of medical human genetics · 2025
    Article
  9. Article
  10. Proteomic analyses reveal plasma EFEMP1 and CXCL12 as biomarkers and determinants of neurodegeneration.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Iron homeostasis and organismal aging.Ageing research reviews · 2021
    Review
  19. Article
  20. Review

10 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

14 authors at 6 institutions in 2 countries.

Toshiko TanakaMedStar Research Institute, Baltimore, MD, USA. tanakato@mail.nih.gov
Cindy N Roy
Wenliang Yao
Amy Matteini
Richard D Semba
Dan Arking
Jeremy D Walston
Linda P Fried
Andrew Singleton
Jack Guralnik
Gonçalo R Abecasis
Stefania Bandinelli
Dan L Longo
Luigi Ferrucci
Johns Hopkins Medicine · USNational Institute on Aging · USAzienda Sanitaria di Firenze · ITColumbia University · USJohns Hopkins University · USUniversity of Michigan–Ann Arbor · US

Funding

The Baltimore Longitudinal Study Of AgingZIAAG000015 · NIA · NATIONAL INSTITUTE ON AGING · PI SIMONSICK, ELEANOR MARIE · 2009 to 2025
$116.9M
Pathogenesis of physical disability in Aging womenR37AG019905 · NIA · JOHNS HOPKINS UNIVERSITY · PI FRIED, LINDA P · 2001 to 2010
$9.0M
The Aging Genome Association Study "AGE-GAIN"ZIAAG000965 · NIA · NATIONAL INSTITUTE ON AGING · PI FERRUCCI, LUIGI · 2009 to 2025
$4.0M
The InChianti StudyZIAAG001050 · NIA · NATIONAL INSTITUTE ON AGING · PI FERRUCCI, LUIGI · 2009 to 2025
$2.1M
HISPANIC SECONDARY STROKE PREVENTION INITIATIVER01MD009164 · NIMHD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI CARRASQUILLO, OLVEEN · 2014 to 2018
$1.9M
WOMEN'S HEALTH AND AGING-12112N01AG012112 · NIA · JOHNS HOPKINS UNIVERSITY · 1991 to 2003
$500k
ZIDOVUDINE WITH PROBENECID--EFFECTS OF PROBENECID ON ZIDOVUDINEM01RR000722 · NCRR · JOHNS HOPKINS UNIVERSITY · 1985 to 1996
–
Intramural NIH HHSNCRR NIH HHS M01 RR000722NIA NIH HHS N01 AG012112NIA NIH HHS N01-AG12112NIA NIH HHS R37 AG019905NIA NIH HHS R37 AG19905NIMHD NIH HHS R01 MD009164
6 · The paper itself

Abstract

To investigate genetic variants that affect iron concentrations in persons not affected by overt genetic disorders of iron metabolism, a genome-wide association study was conducted in the InCHIANTI Study (N = 1206) and the Baltimore Longitudinal Study of Aging (N = 713). The top 2 single-nucleotide polymorphisms were examined for replication in the Women's Health and Aging Study (WHAS) I and II (N = 569). The single-nucleotide polymorphism most strongly associated with lower serum iron concentration was rs4820268 (P = 5.12 x 10(-9)), located in exon 13 of the transmembrane protease serine 6 (TMPRSS6) gene, an enzyme that promotes iron absorption and recycling by inhibiting hepcidin antimicrobial peptide transcription. The allele associated with lower iron concentrations was also associated with lower hemoglobin levels, smaller red cells, and more variability in red cell size (high red blood cell distribution width). Our results confirm the association of TMPRSS6 variants with iron level and provide further evidence of association with other anemia-related phenotypes.

Indexed as

Genome-Wide Association StudyAgedFemaleGenetic Predisposition to DiseaseHumansIronMaleMembrane ProteinsPolymorphism, Single NucleotideQuantitative Trait, HeritableSerine EndopeptidasesIronMembrane ProteinsSerine EndopeptidasesTMPRSS6 protein, human

Identifiers

PMID19880490
PMCPMC2803694
OpenAlexW2113642938

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.