Evidence map›Paper›PMID 25973894›Full record

ArticlePloS one2015

Comparative evaluation of nephrotoxicity and management by macrophages of intravenous pharmaceutical iron formulations.

James R Connor, Xuesheng Zhang, Anne M Nixon, Becky Webb, Joseph R Perno

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.7field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Treatment of restless legs syndrome and periodic limb movement disorder: an American Academy of Sleep Medicine clinical practice guideline.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
    Guideline
  2. Trial
  3. Article
  4. Observational
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Emerging and Dynamic Biomedical Uses of Ferritin.Pharmaceuticals (Basel, Switzerland) · 2018
    Review
  13. Review
  14. Article
  15. Article
  16. Article
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

5 authors at 1 institution in 1 country.

James R ConnorDepartment of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania, United States of America.
Xuesheng ZhangDepartment of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania, United States of America.
Anne M NixonDepartment of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania, United States of America.
Becky WebbDepartment of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania, United States of America.
Joseph R PernoLuitpold Pharmaceuticals, Inc., Norristown, Pennsylvania, United States of America.
Penn State Milton S. Hershey Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a significant clinical need for effective treatment of iron deficiency. A number of compounds that can be administered intravenously have been developed. This study examines how the compounds are handled by macrophages and their relative potential to provoke oxidative stress.

methodsHuman kidney (HK-2) cells, rat peritoneal macrophages and renal cortical homogenates were exposed to pharmaceutical iron preparations. Analyses were performed for indices of oxidative stress and cell integrity. In addition, in macrophages, iron uptake and release and cytokine secretion was monitored.

resultsHK-2 cell viability was decreased by iron isomaltoside and ferumoxytol and all compounds induced lipid peroxidation. In the renal cortical homogenates, lipid peroxidation occurred at lowest concentrations with ferric carboxymaltose, iron dextran, iron sucrose and sodium ferric gluconate. In the macrophages, iron sucrose caused loss of cell viability. Iron uptake was highest for ferumoxytol and iron isomaltoside and lowest for iron sucrose and sodium ferric gluconate. Iron was released as secretion of ferritin or as ferrous iron via ferroportin. The latter was blocked by hepcidin. Exposure to ferric carboxymaltose and iron dextran resulted in release of tumor necrosis factor α.

conclusionsExposure to iron compounds increased cell stress but was tissue and dose dependent. There was a clear difference in the handling of iron from the different compounds by macrophages that suggests in vivo responses may differ.

Indexed as

AnimalsCation Transport ProteinsCell LineCell SurvivalDisaccharidesEpithelial CellsFerric CompoundsFerric Oxide, SaccharatedFerritinsFerroportinFerrosoferric OxideGlucaric AcidHepcidinsHumansIronIron-Dextran ComplexCation Transport ProteinsDisaccharidesferric carboxymaltoseFerric Compoundsferric gluconateFerric Oxide, SaccharatedFerritinsFerroportinFerrosoferric OxideGlucaric AcidHepcidinsIronIron-Dextran Complexiron isomaltoside 1000MaltoseTumor Necrosis Factor-alpha

Identifiers

PMID25973894
PMCPMC4431721
OpenAlexW256673819

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.