Evidence map›Paper›PMID 21245873›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2011

Prophylactic neuroprotection against stroke: low-dose, prolonged treatment with deferoxamine or deferasirox establishes prolonged neuroprotection independent of HIF-1 function.

Yanxin Zhao, David A Rempe

Abstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Iron chelators for acute stroke.The Cochrane database of systematic reviews · 2020
    Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Therapeutic potential of iron chelators in retinal vascular diseases.International journal of ophthalmology · 2023
    Review
  9. Review
  10. Article
  11. Review
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  13. Article
  14. Article
  15. Article
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  18. Poster Viewing Sessions PB01-B01 to PB03-V09.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Article
  19. Review
  20. Hypoxia Mimetic Agents for Ischemic Stroke.Frontiers in cell and developmental biology · 2018
    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

2 authors.

Yanxin ZhaoDepartment of Neurology, Center for Neural Development and Disease, The Interdepartmental Graduate Program in Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642, USA.
David A Rempe

Funding

The Role of Astrocytes in Ischemic StrokeP01NS050315 · NINDS · UNIVERSITY OF ROCHESTER · PI FEDEROFF, HOWARD J. · 2007 to 2011
$6.1M
Astrocytes, HIF-1a and neuronal survival during strokeR01NS054192 · NINDS · UNIVERSITY OF ROCHESTER · PI REMPE, DAVID · 2007 to 2011
$742k
NINDS NIH HHS 1P01NS050315NINDS NIH HHS 1R01NS054192NINDS NIH HHS P01 NS050315NINDS NIH HHS R01 NS054192
6 · The paper itself

Abstract

Prophylactic neuroprotection against stroke could reduce stroke burden in thousands of patients at high risk of stroke, including those with recent transient ischemic attacks (TIAs). Prolyl hydroxylase inhibitors (PHIs), such as deferoxamine (DFO), reduce stroke volume when administered at high doses in the peristroke period, which is largely mediated by the hypoxia-inducible transcription factor (HIF-1). Yet, in vitro experiments suggest that PHIs may also induce neuroprotection independent of HIF-1. In this study, we examine chronic, prophylactic, low-dose treatment with DFO, or another iron chelator deferasirox (DFR), to determine whether they are neuroprotective with this paradigm and mediate their effects through a HIF-1-dependent mechanism. In fact, prophylactic administration of low-dose DFO or DFR significantly reduces stroke volume. Surprisingly, DFO remained neuroprotective in mice haploinsufficient for HIF-1 (HIF-1+/-) and transgenic mice with conditional loss of HIF-1 function in neurons and astrocytes. Similarly, DFR was neuroprotective in HIF-1+/- mice. Neither DFO nor DFR induced expression of HIF-1 targets. Thus, low-dose chronic administration of DFO or DFR induced a prolonged neuroprotective state independent of HIF-1 function. As DFR is an orally administered and well-tolerated medication in clinical use, it has promise for prophylaxis against stroke in patients at high risk of stroke.

Indexed as

AnimalsAstrocytesBenzoatesBrainCyclic AMP Response Element-Binding ProteinDeferasiroxDeferoxamineErythropoietinExtracellular Signal-Regulated MAP KinasesGene DeletionHypoxia-Inducible Factor 1Iron Chelating AgentsMiceMice, KnockoutNeuronsNeuroprotective AgentsBenzoatesCreb1 protein, mouseCyclic AMP Response Element-Binding ProteinDeferasiroxDeferoxamineErythropoietinExtracellular Signal-Regulated MAP KinasesHypoxia-Inducible Factor 1Iron Chelating AgentsNeuroprotective AgentsProto-Oncogene Proteins c-aktTriazoles

Identifiers

PMID21245873
PMCPMC3130314

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.