Evidence map›Paper›PMID 20732876›Full record

ArticleThe Journal of biological chemistry2010

Arachidonic acid-metabolizing cytochrome P450 enzymes are targets of {omega}-3 fatty acids.

Cosima Arnold, Marija Markovic, Katrin Blossey, Gerd Wallukat, Robert Fischer, Ralf Dechend, Anne Konkel, Clemens von Schacky, Friedrich C Luft, Dominik N Muller and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 183 papers.

0numbers the graph read from it
0cells of the map it votes in
183citing papers in PubMed
11.1field-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

183 citing papers in PubMed, 347 citations in OpenAlex.

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  11. Cytochrome P450-derived metabolites of docosahexaenoic acid or arachidonic acid enhance contractility of cultured rat cardiomyocytes: a pilot study.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2026
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  17. Enhancing cancer immunotherapy via inhibition of soluble epoxide hydrolase.Proceedings of the National Academy of Sciences of the United States of America · 2024
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123 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

12 authors at 3 institutions in 1 country.

Cosima ArnoldFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany.
Marija MarkovicFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany.
Katrin BlosseyLipidomix GmbH, 13125 Berlin, Germany.
Gerd WallukatFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany.
Robert FischerExperimental and Clinical Research Center, Charité Medical Faculty, 13125 Berlin, Germany.
Ralf DechendExperimental and Clinical Research Center, Charité Medical Faculty, 13125 Berlin, Germany.
Anne KonkelFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany.
Clemens von SchackyOmegametrix GmbH, 82152 Martinsried, Germany.
Friedrich C LuftFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany; Experimental and Clinical Research Center, Charité Medical Faculty, 13125 Berlin, Germany.
Dominik N MullerFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany.
Michael RotheLipidomix GmbH, 13125 Berlin, Germany.
Wolf-Hagen SchunckFrom the Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany. Electronic address: schunck@mdc-berlin.de.
Max Delbrück Center · DECharité - Universitätsmedizin Berlin · DELipidomix (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) protect against cardiovascular disease by largely unknown mechanisms. We tested the hypothesis that EPA and DHA may compete with arachidonic acid (AA) for the conversion by cytochrome P450 (CYP) enzymes, resulting in the formation of alternative, physiologically active, metabolites. Renal and hepatic microsomes, as well as various CYP isoforms, displayed equal or elevated activities when metabolizing EPA or DHA instead of AA. CYP2C/2J isoforms converting AA to epoxyeicosatrienoic acids (EETs) preferentially epoxidized the ω-3 double bond and thereby produced 17,18-epoxyeicosatetraenoic (17,18-EEQ) and 19,20-epoxydocosapentaenoic acid (19,20-EDP) from EPA and DHA. We found that these ω-3 epoxides are highly active as antiarrhythmic agents, suppressing the Ca(2+)-induced increased rate of spontaneous beating of neonatal rat cardiomyocytes, at low nanomolar concentrations. CYP4A/4F isoforms ω-hydroxylating AA were less regioselective toward EPA and DHA, catalyzing predominantly ω- and ω minus 1 hydroxylation. Rats given dietary EPA/DHA supplementation exhibited substantial replacement of AA by EPA and DHA in membrane phospholipids in plasma, heart, kidney, liver, lung, and pancreas, with less pronounced changes in the brain. The changes in fatty acids were accompanied by concomitant changes in endogenous CYP metabolite profiles (e.g. altering the EET/EEQ/EDP ratio from 87:0:13 to 27:18:55 in the heart). These results demonstrate that CYP enzymes efficiently convert EPA and DHA to novel epoxy and hydroxy metabolites that could mediate some of the beneficial cardiovascular effects of dietary ω-3 fatty acids.

Indexed as

AnimalsAnti-Arrhythmia AgentsArachidonic AcidCalciumCardiovascular DiseasesCytochrome P-450 Enzyme SystemDocosahexaenoic AcidsEicosapentaenoic AcidHumansIsoenzymesMiceMyocytes, CardiacRatsRats, Sprague-DawleyAnti-Arrhythmia AgentsArachidonic AcidCalciumCytochrome P-450 Enzyme SystemDocosahexaenoic AcidsEicosapentaenoic AcidIsoenzymes

Identifiers

PMID20732876
PMCPMC2963419
OpenAlexW2038222125

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.