Evidence map›Paper›PMID 21182525›Full record

ArticleJournal of neurochemistry2011

Inhibition of cPLA2 activation by Ginkgo biloba extract protects spinal cord neurons from glutamate excitotoxicity and oxidative stress-induced cell death.

Zhen Zhao, Naikui Liu, Jingya Huang, Pei-Hua Lu, Xiao-Ming Xu

Abstract read
In one paragraph

Article in Journal of neurochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Arachidonic acid metabolism in spinal cord injury.Journal of advanced research · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. TiOAdvances in neurobiology · 2023
    Review
  7. Article
  8. Phospholipase AScience advances · 2021
    Article
  9. The Synergistic Effect ofDrug design, development and therapy · 2021
    Article
  10. Article
  11. Phospholipase AACS nano · 2020
    Article
  12. Review
  13. Effects ofEvidence-based complementary and alternative medicine : eCAM · 2020
    Article
  14. Drug design, development and therapy · 2019
    Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. 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

5 authors at 2 institutions in 2 countries.

Zhen ZhaoDepartment of Neurobiology, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Naikui Liu
Jingya Huang
Pei-Hua Lu
Xiao-Ming Xu
Shanghai Jiao Tong University · CNNeurological Surgery · US

Funding

Reprogramming reactive glial cells into functional new neurons after SCIR01NS111776 · NINDS · INDIANA UNIVERSITY INDIANAPOLIS · PI WU, WEI, ZHANG, CHUN-LI · 2020 to 2024
$2.4M
PKC inhibition-mediated spinal cord regenerationR01NS052290 · NINDS · UNIVERSITY OF LOUISVILLE · PI XU, XIAO-MING · 2005 to 2009
$1.8M
Tissue engineering in spinal cord regenerationR01NS050243 · NINDS · VIRGINIA COMMONWEALTH UNIVERSITY · PI WEN, XUEJUN · 2007 to 2011
$1.7M
Role of phospholipase A2 in spinal cord secondary injuryR01NS059622 · NINDS · INDIANA UNIVERSITY INDIANAPOLIS · PI XU, XIAO-MING · 2009 to 2013
$1.6M
NINDS NIH HHS NS050243NINDS NIH HHS NS052290NINDS NIH HHS NS059622NINDS NIH HHS R01 NS050243NINDS NIH HHS R01 NS052290NINDS NIH HHS R01 NS059622NINDS NIH HHS R01 NS111776
6 · The paper itself

Abstract

Ginkgo biloba extract (EGb761) has been shown to be neuroprotective; however, the mechanism by which EGb761 mediates neuroprotection remains unclear. We hypothesized that the neuroprotective effect of EGb761 is mediated by inhibition of cytosolic phospholipase A(2) (cPLA(2)), an enzyme that is known to play a key role in mediating secondary pathogenesis after acute spinal cord injury (SCI). To determine whether EGb761 neuroprotection involves the cPLA(2) pathway, we first investigated the effect of glutamate and hydrogen peroxide on cPLA(2) activation. Results showed that both insults induced an increase in the expression of phosphorylated cPLA(2) (p-cPLA(2)), a marker of cPLA(2) activation, and neuronal death in vitro. Such effects were significantly reversed by EGb761 administration. Additionally, EGb761 significantly decreased prostaglandin E(2) (PGE(2)) release, a downstream metabolite of cPLA(2). Moreover, inhibition of cPLA(2) activity with arachidonyl trifluromethyl ketone improved neuroprotection against glutamate and hydrogen peroxide-induced neuronal death, and reversed Bcl-2/Bax ratio; notably, EGb761 produced greater effects than arachidonyl trifluromethyl ketone. Finally, we showed that the extracellular signal-regulated kinase 1/2 signaling pathway is involved in EGb761's modulation of cPLA(2) phosphorylation. These results collectively suggest that the protective effect of EGb761 is mediated, at least in part, through inhibition of cPLA(2) activation, and that the extracellular signal-regulated kinase 1/2 signaling pathway may play an important role in mediating the EGb761's effect.

Indexed as

AnimalsAnimals, NewbornCell DeathCells, CulturedCell SurvivalDose-Response Relationship, DrugDrug InteractionsGinkgo bilobaGinkgo ExtractGlutamic AcidHydrogen PeroxideMitogen-Activated Protein Kinase 3NeuronsNeurotoxinsOxidative StressPhospholipases A2, CytosolicGinkgo biloba extractGinkgo ExtractGlutamic AcidHydrogen PeroxideMitogen-Activated Protein Kinase 3NeurotoxinsPhospholipases A2, CytosolicPlant Extracts

Identifiers

PMID21182525
PMCPMC3059200
OpenAlexW1515861163

What OpenQuestion holds

Textmetadata
LicenceTDM
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.