Evidence map›Paper›PMID 17018645›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

The omega-3 fatty acid docosahexaenoate attenuates endothelial cyclooxygenase-2 induction through both NADP(H) oxidase and PKC epsilon inhibition.

Marika Massaro, Aida Habib, Laura Lubrano, Serena Del Turco, Guido Lazzerini, Todd Bourcier, Babette B Weksler, Raffaele De Caterina

Erratum issued Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT01814527 (High Dose Omega-3 Fatty Acids in the Treatment of Sport Related Concussions), which is not on this map. Cited by 81 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 2 pooled it
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.

NCT01814527 nacompletednot on this mapstarted 2013, after this paper: background citation

High Dose Omega-3 Fatty Acids in the Treatment of Sport Related Concussions

TypeinterventionalSponsorEast Carolina UniversityRan2013 to 2017Enrolled62ConditionsMild Concussion, Brain Concussion, Cerebral ConcussionArmsDocosahexaenoic acid, Placebo
3 · Its place in the literature

Who cites it

81 citing papers in PubMed, 2 syntheses or guidelines pooled it, 217 citations in OpenAlex.

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  14. Gene therapy forProceedings of the National Academy of Sciences of the United States of America · 2024
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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Marika MassaroInstitute of Clinical Physiology, Consiglio Nazionale delle Ricerche, 73100 Lecce, Italy.
Aida Habib
Laura Lubrano
Serena Del Turco
Guido Lazzerini
Todd Bourcier
Babette B Weksler
Raffaele De Caterina
National Research Council · ITCornell University · USAmerican University of Beirut · LBIstituto di Fisiologia Clinica · ITUniversity of Chieti-Pescara · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A high intake of the omega-3 fatty acid docosahexaenoate [docosahexaenoic acid (DHA)] has been associated with systemic antiinflammatory effects and cardiovascular protection. Cyclooxygenase (COX)-2 is responsible for the overproduction of prostaglandins (PG) at inflammatory sites, and its expression is increased in atheroma. We studied the effects of DHA on COX-2 expression and activity in human saphenous vein endothelial cells challenged with proinflammatory stimuli. A>or=24-h exposure to DHA reduced COX-2 expression and activity induced by IL-1, without affecting COX-1 expression. DHA effect depended on the NF-kappaB-binding site in the COX-2 promoter. EMSAs confirmed that DHA attenuated NF-kappaB activation. Because MAPK, PKC, and NAD(P)H oxidase all participate in IL-1-mediated COX-2 expression, we also tested whether these enzymes were involved in DHA effects. Western blots showed that DHA blocked nuclear p65 NF-kappaB subunit translocation by decreasing cytokine-stimulated reactive oxygen species and ERK1/2 activation by effects on both NAD(P)H oxidase and PKCepsilon activities. Finally, to address the question whether DHA itself or DHA-derived products were responsible for these effects, we inhibited the most important enzymes involved in polyunsaturated fatty acid metabolism, showing that 15-lipoxygenase-1 products mediate part of DHA effects. These studies provide a mechanistic basis for antiinflammatory and possibly plaque-stabilizing effects of DHA.

Indexed as

Cells, CulturedCyclooxygenase 2Cyclooxygenase 2 InhibitorsDocosahexaenoic AcidsEndothelium, VascularEnzyme InductionHumansNADPH OxidasesProtein Kinase C-epsilonCyclooxygenase 2Cyclooxygenase 2 InhibitorsDocosahexaenoic AcidsNADPH OxidasesProtein Kinase C-epsilon

Identifiers

PMID17018645
PMCPMC1622797
OpenAlexW2073878918

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.