Evidence map›Paper›PMID 22586114›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Omega-3 fatty acids cause dramatic changes in TLR4 and purinergic eicosanoid signaling.

Paul C Norris, Edward A Dennis

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
13.4field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 188 citations in OpenAlex.

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  4. Effect of zileuton and celecoxib on urinary LTE4 and PGE-M levels in smokers.Cancer prevention research (Philadelphia, Pa.) · 2013
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35 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

2 authors at 1 institution in 1 country.

Paul C NorrisDepartment of Chemistry/Biochemistry, School of Medicine, University of California at San Diego, La Jolla, CA 92093, USA.
Edward A Dennis
University of California, San Diego · US

Funding

STEROL LIPIDSU54GM069338 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DENNIS, EDWARD A · 2003 to 2013
$72.2M
GRADUATE TRAINING IN CELLULAR &MOLECULAR PHARMACOLOGYT32GM007752 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BROWN, JOAN HELLER, HANDEL, TRACY M · 1985 to 2023
$13.5M
Regulation of Prostaglandin Production in MacrophagesR01GM064611 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DENNIS, EDWARD A · 2002 to 2011
$2.4M
NIGMS NIH HHS R01 GM064611NIGMS NIH HHS R01 GM64611NIGMS NIH HHS T32 GM007752NIGMS NIH HHS U54 GM069338
6 · The paper itself

Abstract

Dietary fish oil containing ω3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), elicit cardioprotective and anti-inflammatory effects through unresolved mechanisms that may involve competition and inhibition at multiple levels. Here, we report the effects of arachidonic acid (AA), EPA, and DHA supplementation on membrane incorporation, phospholipase A(2) catalyzed release, and eicosanoid production in RAW264.7 macrophages. Using a targeted lipidomics approach, we observed that Toll-like receptor 4 and purinergic receptor activation of supplemented cells leads to the release of 22-carbon fatty acids that potently inhibit cyclooxygenase pathways. This inhibition was able to shunt metabolism of AA to lipoxygenase pathways, augmenting leukotriene and other lipoxygenase mediator synthesis. In resident peritoneal macrophages, docosapentaenoic acid (DPA) was responsible for cyclooxygenase inhibition after EPA supplementation, offering fresh insights into how EPA exerts anti-inflammatory effects indirectly through elongation to 22-carbon DPA.

Indexed as

Adenosine TriphosphateAnimalsArachidonic AcidBlotting, WesternCell LineCell MembraneCells, CulturedDocosahexaenoic AcidsEicosanoidsFatty Acids, Omega-3Fatty Acids, UnsaturatedGas Chromatography-Mass SpectrometryLipopolysaccharidesLipoxygenaseMacrophagesMacrophages, PeritonealAdenosine TriphosphateArachidonic AcidDocosahexaenoic Acidsdocosapentaenoic acidEicosanoidsFatty Acids, Omega-3Fatty Acids, UnsaturatedKdo2-lipid ALipopolysaccharidesLipoxygenaseMembrane LipidsPhospholipases A2Prostaglandin-Endoperoxide SynthasesReceptors, Purinergic P2X7Toll-Like Receptor 4

Identifiers

PMID22586114
PMCPMC3365225
OpenAlexW2048856163

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.