Evidence map›Paper›PMID 24913088›Full record

ArticleProstaglandins, leukotrienes, and essential fatty acids2014

Is the omega-3 index a valid marker of intestinal membrane phospholipid EPA+DHA content?

Eric A Gurzell, Jason A Wiesinger, Christina Morkam, Sophia Hemmrich, William S Harris, Jenifer I Fenton

Registry-linked trialAbstract read
In one paragraph

Article in Prostaglandins, leukotrienes, and essential fatty acids, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04901052 (Effect of a Diet Supplemented With Omega-3 on Biochemical Variables, Cytokine Concentration and Fatty Acid Profile in Subjects With Obesity), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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.

NCT04901052 nacompletednot on this mapstarted 2018, after this paper: background citation

Effect of a Diet Supplemented With Omega-3 on Biochemical Variables, Cytokine Concentration and Fatty Acid Profile in Subjects With Obesity

TypeinterventionalSponsorUniversity of GuadalajaraRan2018 to 2019Enrolled58ConditionsObesityArmsn-3 supplementation group, Placebo group
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

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  14. Public health relevance of drug-nutrition interactions.European journal of nutrition · 2017
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  16. Altered Saturated and Monounsaturated Plasma Phospholipid Fatty Acid Profiles in Adult Males with Colon Adenomas.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2016
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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

6 authors at 3 institutions in 1 country.

Eric A GurzellDepartment of Food Science and Human Nutrition, Michigan State University, MI, United States.
Jason A WiesingerDepartment of Food Science and Human Nutrition, Michigan State University, MI, United States.
Christina MorkamDepartment of Food Science and Human Nutrition, Michigan State University, MI, United States.
Sophia HemmrichDepartment of Food Science and Human Nutrition, Michigan State University, MI, United States.
William S HarrisSanford School of Medicine, The University of South Dakota, Sioux Falls, SD (WSH), United States.
Jenifer I FentonDepartment of Food Science and Human Nutrition, Michigan State University, MI, United States; College of Osteopathic Medicine, East Lansing, MI, United States. Electronic address: imigjeni@msu.edu.
Michigan State University · USPhiladelphia College of Osteopathic Medicine · USUniversity of South Dakota · US

Funding

Effect of dietary omega 3 fatty acids on colitis and colon cancer development inR03CA162427 · NCI · MICHIGAN STATE UNIVERSITY · PI FENTON, JENIFER IMIG · 2011 to 2012
$154k
NCI NIH HHS R03 CA162427NCI NIH HHS R03CA162427
6 · The paper itself

Abstract

Despite numerous studies investigating n-3 long chain polyunsaturated fatty acid (LCPUFA) supplementation and inflammatory bowel diseases (IBD), the extent to which dietary n-3 LCPUFAs incorporate in gastrointestinal (GI) tissues and correlate with red blood cell (RBC) n-3 LCPUFA content is unknown. In this study, mice were fed three diets with increasing percent of energy (%en) derived from eicosapentaenoic acid (EPA)+docosahexaenoic acid (DHA). Dietary levels reflected recommended intakes of fish/fish oil by the American Heart Association. We analyzed the FA composition of phospholipids extracted from RBCs, plasma, and GI tissues. We observed that the 0.1%en EPA+DHA diet was sufficient to significantly increase the omega-3 index (RBC EPA+DHA) after 5 week feeding. The baseline EPA levels were 0.2-0.6% across all tissues increasing to 1.6-4.3% in the highest EPA+DHA diet; these changes resulted in absolute increases of 1.4-3.9% EPA across tissues. The baseline DHA levels were 2.2-5.9% across all tissues increasing to 5.8-10.5% in the highest EPA+DHA diet; these changes resulted in absolute increases of 3.2-5.7% DHA across tissues. These increases in EPA and DHA across all tissues resulted in strong (r>0.91) and significant (P<0.001) linear correlations between the omega-3 index and plasma/GI tissue EPA+DHA content, suggesting that the omega-3 index reflects the relative amounts of EPA+DHA in GI tissues. These data demonstrate that the GI tissues are highly responsive to dietary LCPUFA supplementation and that the omega-3 index can serve as a valid biomarker for assessing dietary EPA+DHA incorporation into GI tissues.

Indexed as

Cell MembraneEicosapentaenoic AcidAnimalsDietary FatsDocosahexaenoic AcidsInflammatory Bowel DiseasesIntestinal MucosaMiceMice, KnockoutDietary FatsDocosahexaenoic AcidsEicosapentaenoic AcidBiomarkerColonFatty acidsIntestineOmega-3Red blood cell

Identifiers

PMID24913088
PMCPMC4127132
OpenAlexW2083518816

What OpenQuestion holds

Textmetadata
LicenceTDM
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.