Evidence map›Paper›PMID 22863680›Full record

ArticleNeuroscience2012

The protective effect of astrocyte-derived 14,15-epoxyeicosatrienoic acid on hydrogen peroxide-induced cell injury in astrocyte-dopaminergic neuronal cell line co-culture.

M Terashvili, P Sarkar, M V Nostrand, J R Falck, D R Harder

Open access · greenAbstract read
In one paragraph

Article in Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
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

23 citing papers in PubMed, 41 citations in OpenAlex.

  1. The Roles of EETs in Neurological Disorders.CNS neuroscience & therapeutics · 2026
    Review
  2. Aflatoxin BInternational journal of molecular sciences · 2023
    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

5 authors at 2 institutions in 1 country.

M TerashviliDepartment of Physiology, Cardiovascular Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, United States.
P Sarkar
M V Nostrand
J R Falck
D R Harder
Medical College of Wisconsin · USThe University of Texas Southwestern Medical Center · US

Funding

TRANSPORT EFFECTS OF ARACHIDONATE METABOLITES IN PERFUSED TUBULEP01DK038226 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BROWN, NANCY J. · 1986 to 2015
$22.1M
Role of Novel CYP Isoforms in Regulation of Cerebral Blood FlowP01HL059996 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI ROMAN, RICHARD J. · 1999 to 2009
$14.5M
REGULATING CEREBRAL MICROCIRCULATION BY ASTROCYTESR01HL033833 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI HARDER, DAVID RAE · 1985 to 2017
$5.8M
Modification of Vascular Signaling in the Brain by ROSR01HL092105 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI HARDER, DAVID RAE · 2009 to 2013
$2.0M
NHLBI NIH HHS P01 HL059996NHLBI NIH HHS R01 HL033833NHLBI NIH HHS R01 HL092105NIDDK NIH HHS P01 DK038226
6 · The paper itself

Abstract

Astrocytes perform several functions that are essential for normal neuronal activity. They play a critical role in neuronal survival during ischemia and other degenerative injuries and also modulate neuronal recovery by influencing neurite outgrowth. In this study, we investigated the neuroprotective effects of astrocyte-derived 14,15-epoxyeicosatrienoic acid (14,15-EET), metabolite of arachidonic acid by cytochrome P450 epoxygenases (CYP), against oxidative stress induced by hydrogen peroxide (H(2)O(2)). We found that dopaminergic neuronal cells (N27 cell line) stimulated with two different doses of H(2)O(2) (0.1 and 1mM) for 1h showed decreased cell viability compared to the control group, while astrocytes showed less cell death after stimulation with the same doses of H(2)O(2) for 1h. Dopaminergic neuronal cells (N27 cell line) pretreated with different doses of 14,15-EET (0.1-30 μM, 30 min) before H(2)O(2) stimulation also showed increased cell viability. Furthermore, pre-treatment of the co-cultured cells with 12-(3-adamantan-1-yl-ureido)-dodecanoic acid, an inhibitor of the EET metabolizing enzyme, soluble epoxide hydrolase (sEH), before H(2)O(2) stimulation (1mM, for 1h) increased cell viability. It also increased the endogenous level of 14,15-EET in the media compared to control group. However, pretreatment with the CYP epoxygenase inhibitor miconazole (1-20 μM, 1h) before H(2)O(2) (1mM, 1h) stimulation showed decreased cell viability. Our data suggest that 14,15-EET which is released from astrocytes, enhances cell viability against oxidant-induced injury. Further understanding of the mechanism of 14,15-EET-mediated protection in dopaminergic neurons is imperative, as it could lead to novel therapeutic approaches for treating CNS neuropathologies, such as Parkinson's disease.

Indexed as

8,11,14-Eicosatrienoic AcidAnalysis of VarianceAnimalsAnimals, NewbornAstrocytesCells, CulturedCell SurvivalChromatography, LiquidCoculture TechniquesDopaminergic NeuronsDose-Response Relationship, DrugDrug Administration ScheduleEicosanoidsHippocampusHydrogen PeroxideMass Spectrometry14,15-epoxy-5,8,11-eicosatrienoic acid8,11,14-Eicosatrienoic AcidEicosanoidsHydrogen PeroxideNeuroprostanesOxidants

Identifiers

PMID22863680
PMCPMC4003556
OpenAlexW2053742406

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.