Evidence map›Paper›PMID 26400084›Full record

ArticleThe Journal of biological chemistry2015

Ablation of the Ferroptosis Inhibitor Glutathione Peroxidase 4 in Neurons Results in Rapid Motor Neuron Degeneration and Paralysis.

Liuji Chen, William Sealy Hambright, Ren Na, Qitao Ran

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 279 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
279citing 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

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

  1. Pooled it
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  16. miR-24-3p promotes spinal cord injury repair in rats by inhibiting ferroptosisNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026
    Article
  17. Article
  18. Acidosis, Iron Dyshomeostasis and Inflammatory Injury.International journal of molecular sciences · 2026
    Review
  19. Ferroptotic neurodegeneration and diet: a narrative review.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  20. Review

219 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

4 authors.

Liuji ChenDepartment of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229.
William Sealy HambrightDepartment of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229.
Ren NaDepartment of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229.
Qitao RanDepartment of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229; Research Service, South Texas Veterans Health Care System, San Antonio, Texas 78229. Electronic address: ran@uthscsa.edu.

Funding

San Antonio OAIC - Research Education Component (REC)P30AG044271 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Adam Salmon, Elena Volpi · 2015 to 2026
$14.1M
TRAINING GRANT ON THE BIOLOGY OF AGINGT32AG021890 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Erzsebet Kokovay, JAMES FLOYD NELSON · 2003 to 2026
$11.4M
NIA NIH HHS P30 AG044271NIA NIH HHS T32 AG021890
6 · The paper itself

Abstract

Glutathione peroxidase 4 (GPX4), an antioxidant defense enzyme active in repairing oxidative damage to lipids, is a key inhibitor of ferroptosis, a non-apoptotic form of cell death involving lipid reactive oxygen species. Here we show that GPX4 is essential for motor neuron health and survival in vivo. Conditional ablation of Gpx4 in neurons of adult mice resulted in rapid onset and progression of paralysis and death. Pathological inspection revealed that the paralyzed mice had a dramatic degeneration of motor neurons in the spinal cord but had no overt neuron degeneration in the cerebral cortex. Consistent with the role of GPX4 as a ferroptosis inhibitor, spinal motor neuron degeneration induced by Gpx4 ablation exhibited features of ferroptosis, including no caspase-3 activation, no TUNEL staining, activation of ERKs, and elevated spinal inflammation. Supplementation with vitamin E, another inhibitor of ferroptosis, delayed the onset of paralysis and death induced by Gpx4 ablation. Also, lipid peroxidation and mitochondrial dysfunction appeared to be involved in ferroptosis of motor neurons induced by Gpx4 ablation. Taken together, the dramatic motor neuron degeneration and paralysis induced by Gpx4 ablation suggest that ferroptosis inhibition by GPX4 is essential for motor neuron health and survival in vivo.

Indexed as

Cell DeathAnimalsGlutathione PeroxidaseMiceMice, KnockoutMotor NeuronsParalysisPhospholipid Hydroperoxide Glutathione PeroxidaseReactive Oxygen SpeciesSpinal CordGlutathione PeroxidasePhospholipid Hydroperoxide Glutathione PeroxidaseReactive Oxygen Speciescell deathferroptosisgene knockoutGPX4lipid peroxidationmotor neuronsmuscle atrophyneurodegenerationparalysis

Identifiers

PMID26400084
PMCPMC4653669

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.