Evidence map›Paper›PMID 14614095›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Paradoxical actions of hydrogen peroxide on long-term potentiation in transgenic superoxide dismutase-1 mice.

Ariel Kamsler, Menahem Segal

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 100 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Involvement of ROS signal in aging and regulation of brain functions.The journal of physiological sciences : JPS · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Selective Ablation ofThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. 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

2 authors at 1 institution in 1 country.

Ariel KamslerDepartment of Neurobiology, The Weizmann Institute, Rehovot 76100, Israel. menahem.segal@weizmann.ac.il
Menahem Segal
Weizmann Institute of Science · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydrogen peroxide (H2O2), a reactive oxygen species, is assumed to have a detrimental effect on neuronal plasticity. Indeed, H2O2 suppresses long-term potentiation (LTP) in hippocampal slices of normal rats and wild-type (wt) mice. Transgenic mice overexpressing superoxide dismutase (SOD) 1 (tg-SOD), which maintain high ambient H2O2, have also been shown to be impaired in their ability to express hippocampal LTP. Paradoxically, H2O2, at a concentration (50 microm) that blocks LTP in wt mice, actually enhanced LTP in slices of 2-month-old tg-SOD mice. H2O2-dependent LTP in tg-SOD was blocked by the protein phosphatase calcineurin inhibitor FK506, but not by rapamycin, an FK-binding protein 12 (FKBP12) inhibitor or by 1-(5-isoquinolinesulfonyl)-2-methylpiperazine (H7), a serine-kinase inhibitor. Interestingly, wt and tg-SOD mice expressed similar levels of the antioxidant enzyme catalase and similar activity of glutathione peroxidase. An opposite situation was found in 2-year-old mice. Aged wt mice were impaired in LTP in a manner that could be reversed by the addition of H2O2. Surprisingly, aged tg-SOD mice exhibited larger LTP than that found in wt mice, but this was now reduced by 50 microm H2O2. Both young tg-SOD and aged control mice displayed altered protein phosphatase activity, compared with that of young controls; moreover, FK506 inhibited LTP in old tg-SOD as well as in old wt mice treated with H2O2. These data promoted a dual role for H2O2 in the regulation of LTP, and proposed that it is mediated by the protein phosphatase calcineurin.

Indexed as

Age FactorsAnimalsAntioxidantsCalcineurinElectric StimulationHippocampusHydrogen PeroxideIn Vitro TechniquesLong-Term PotentiationMaleMiceMice, TransgenicNeuronal PlasticityOxidantsReactive Oxygen SpeciesSuperoxide DismutaseAntioxidantsCalcineurinHydrogen PeroxideOxidantsReactive Oxygen SpeciesSod1 protein, mouseSod1 protein, ratSuperoxide DismutaseSuperoxide Dismutase-1TacrolimusXanthineXanthine Oxidase

Identifiers

PMID14614095
PMCPMC6741007
OpenAlexW1614475405

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.