Evidence map›Paper›PMID 25378535›Full record

Trial reportCirculation research2015

Iron, inflammation, and early death in adults with sickle cell disease.

Eduard J van Beers, Yanqin Yang, Nalini Raghavachari, Xin Tian, Darlene T Allen, James S Nichols, Laurel Mendelsohn, Sergei Nekhai, Victor R Gordeuk, James G Taylor and 1 more

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Circulation research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 3 syntheses or guidelines pooled it, 97 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Crosstalk Between Sickle Cell Disease and Ferroptosis.International journal of molecular sciences · 2025
    Review
  14. Article
  15. Whole Blood Transcriptome Analysis in Congenital Anemia Patients.International journal of molecular sciences · 2024
    Article
  16. Article
  17. Ferroptosis as an emerging target in sickle cell disease.Current research in toxicology · 2024
    Article
  18. Article
  19. Article
  20. The NLRP3 inflammasome fires up heme-induced inflammation in hemolytic conditions.Translational research : the journal of laboratory and clinical medicine · 2023
    Review
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

11 authors at 2 institutions in 1 country.

Eduard J van BeersFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Yanqin YangFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Nalini RaghavachariFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Xin TianFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Darlene T AllenFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
James S NicholsFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Laurel MendelsohnFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Sergei NekhaiFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Victor R GordeukFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
James G TaylorFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.).
Gregory J KatoFrom the Hematology Branch (E.J.v.B., D.T.A., J.S.N., L.M., J.G.T., G.J.K.), Genomics Core Facility (Y.Y., N.R.), and Office of Biostatistics Research (X.T.), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD; Center for Sickle Cell Disease, Department of Medicine, Howard University, Washington, DC (S.N.); Comprehensive Sickle Cell Center, Section of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago (V.R.G.); and Division of Hematology-Oncology, Department of Medicine and the Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA (G.J.K.). Current address: Van Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands (E.J.v.B.). katogj@upmc.edu.
University of Illinois Chicago · USHoward University · US

Funding

DNA Sequencing Core (DSC)ZICHL006058 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI ZHU, JUN · 2010 to 2016
$16.6M
PROTEOMICS CORE FACILITYG12MD007597 · NIMHD · HOWARD UNIVERSITY · PI SOUTHERLAND, WILLIAM M. · 2012 to 2018
$14.8M
Center for Hemoglobin Research in Minorities (CHaRM)P50HL118006 · NHLBI · HOWARD UNIVERSITY · PI NEKHAI, SERGEI · 2013 to 2017
$7.0M
Sickle Cell Disease and Sickle Cell Trait Protection Against HIV-1-infection in Africans and African AmericansR01HL125005 · NHLBI · HOWARD UNIVERSITY · PI MARINA A JEREBTSOVA, SERGEI NEKHAI · 2014 to 2026
$6.7M
Genomic Determinants of Phenotypes of Sickle Cell DiseaseZIAHL006160 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI TAYLOR, JAMES · 2012 to 2016
$5.1M
Prevalence and Prognosis of Pulmonary Hypertension in Adults with Sickle CellZIAHL006012 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI TAYLOR, JAMES · 2009 to 2016
$3.5M
Blood Studies of Endothelial Function and Systemic InflammationZIAHL006013 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KATO, GREGORY · 2009 to 2013
$680k
Plasma Biomarkers of Sickle Cell Pulmonary HypertensionZIAHL006162 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KATO, GREGORY · 2012 to 2013
$506k
Atorvastatin Therapy to Improve Endothelial Function in Sickle Cell DiseaseZIAHL006023 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KATO, GREGORY · 2009 to 2013
$258k
Intramural NIH HHS ZIA HL006012Intramural NIH HHS ZIA HL006013Intramural NIH HHS ZIA HL006023Intramural NIH HHS ZIA HL006162NHLBI NIH HHS 1ZIA HL006013-03NHLBI NIH HHS 1 ZIA HL006023-03NHLBI NIH HHS P50 HL118006NHLBI NIH HHS R01 HL125005NIMHD NIH HHS G12 MD007597PHS HHS 1ZIAHL006012-02
6 · The paper itself

Abstract

rationalePatients with sickle cell disease (SCD) have markers of chronic inflammation, but the mechanism of inflammation and its relevance to patient survival are unknown.

objectiveTo assess the relationship between iron, inflammation, and early death in SCD. METHODS AND

resultsUsing peripheral blood mononuclear cell transcriptome profile hierarchical clustering, we classified 24 patients and 10 controls in clusters with significantly different expression of genes known to be regulated by iron. Subsequent gene set enrichment analysis showed that many genes associated with the high iron cluster were involved in the toll-like receptor system (TLR4, TLR7, and TLR8) and inflammasome complex pathway (NLRP3, NLRC4, and CASP1). Quantitative PCR confirmed this classification and showed that ferritin light chain, TLR4, and interleukin-6 expression were >100-fold higher in patients than in controls (P<0.001). Further linking intracellular iron and inflammation, 14 SCD patients with a ferroportin Q248H variant that causes intracellular iron accumulation had significantly higher levels of interleukin-6 and C-reactive protein compared with 14 matched SCD patients with the wild-type allele (P<0.05). Finally, in a cohort of 412 patients followed for a median period of 47 months (interquartile range, 24-82), C-reactive protein was strongly and independently associated with early death (hazard ratio, 3.0; 95% confidence interval, 1.7-5.2; P<0.001).

conclusionsGene expression markers of high intracellular iron in patients with SCD are associated with markers of inflammation and mortality. The results support a model in which intracellular iron promotes inflammatory pathways, such as the TLR system and the inflammasome, identifying important new pathways for additional investigation.

Indexed as

AdultAnemia, Sickle CellCohort StudiesFemaleGenetic MarkersHumansInflammationIronLeukocytes, MononuclearMaleMortalityProspective StudiesRegistriesGenetic MarkersIrongene expressioninflammationironmortalitysickle cell disease

Identifiers

PMID25378535
PMCPMC4297524
OpenAlexW2125425147

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Read underepoch 390

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.