Evidence map›Paper›PMID 20399759›Full record

ArticleBrain research2010

Iron regulatory protein-2 knockout increases perihematomal ferritin expression and cell viability after intracerebral hemorrhage.

Mai Chen, Olatilewa O Awe, Jing Chen-Roetling, Raymond F Regan

Abstract read
In one paragraph

Article in Brain research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 21% 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, 20 citations in OpenAlex.

  1. Review
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  4. Amelioration of nephrotoxicity by targeting ferroptosis: role of NCOA4, IREB2, and SLC7a11 signaling.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2024
    Article
  5. Review
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  8. Potential therapeutic effects of Nrf2 activators on intracranial hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Review
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  13. Article
  14. New avenues for treatment of intracranial hemorrhage.Current treatment options in cardiovascular medicine · 2014
    Article
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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

4 authors at 1 institution in 1 country.

Mai ChenDepartment of Emergency Medicine, Thomas Jefferson University, 1020 Sansom Street, Philadelphia, PA 19107, USA.
Olatilewa O Awe
Jing Chen-Roetling
Raymond F Regan
Thomas Jefferson University · US

Funding

Effect of Inducible Antioxidants on Hemoglobin ToxicityR01NS042273 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI REGAN, RAYMOND F · 2003 to 2010
$2.7M
NINDS NIH HHS NS42273NINDS NIH HHS R01 NS042273
6 · The paper itself

Abstract

Iron is deposited in perihematomal tissue after an intracerebral hemorrhage (ICH), and may contribute to oxidative injury. Cell culture studies have demonstrated that enhancing ferritin expression by targeting iron regulatory protein (IRP) binding activity reduces cellular vulnerability to iron and hemoglobin. In order to assess the therapeutic potential of this approach after striatal ICH, the effect of IRP1 or IRP2 gene knockout on ferritin expression and injury was quantified. Striatal ferritin in IRP1 knockout mice was similar to that in wild-type controls 3 days after stereotactic injection of artificial CSF or autologous blood. Corresponding levels in IRP2 knockouts were increased by 11-fold and 8.4-fold, respectively, compared with wild-type. Protein carbonylation, a sensitive marker of hemoglobin neurotoxicity, was increased by 2.4-fold in blood-injected wild-type striata, was not altered by IRP1 knockout, but was reduced by approximately 60% by IRP2 knockout. Perihematomal cell viability in wild-type mice, assessed by MTT assay, was approximately half of that in contralateral striata at 3 days, and was significantly increased in IRP2 knockouts but not in IRP1 knockouts. Protection was also observed when hemorrhage was induced by collagenase injection. These results suggest that IRP2 binding activity reduces ferritin expression in the striatum after ICH, preventing an optimal response to elevated local iron concentrations. IRP2 binding activity may be a novel therapeutic target after hemorrhagic CNS injuries.

Indexed as

Cerebral HemorrhageAnimalsCell SurvivalCollagenasesDisease Models, AnimalFemaleFerritinsHemoglobinsIronIron Regulatory Protein 1Iron Regulatory Protein 2MaleMiceMice, Inbred StrainsMice, KnockoutOxidative StressCollagenasesFerritinsHemoglobinsIronIron Regulatory Protein 1Iron Regulatory Protein 2

Identifiers

PMID20399759
PMCPMC2903222
OpenAlexW2121239524

What OpenQuestion holds

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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.