Evidence map›Paper›PMID 32725293›Full record

Trial reportEuropean journal of nutrition2021

The influence of fish consumption on serum n-3 polyunsaturated fatty acid (PUFA) concentrations in women of childbearing age: a randomised controlled trial (the iFish Study).

Marie C Conway, Emeir M McSorley, Maria S Mulhern, Toni Spence, Edwin van Wijngaarden, Gene E Watson, Karin Wahlberg, Daniela Pineda, Karin Broberg, Barry W Hyland and 3 more

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03765580 (The Influence of Fish Consumption on Polyunsaturated Fatty Acid), which is not on this map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.7field-weighted citation impact, top 17% 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.

NCT03765580 nacompletednot on this map

The Influence of Fish Consumption on Polyunsaturated Fatty Acid (PUFA) Status (iFish Study)

TypeinterventionalSponsorUniversity of UlsterRan2016 to 2017Enrolled49ConditionsPolyunsaturated Fatty Acid (PUFA) StatusArmsFish, Control
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Fatty acid desaturase genetic variations in heart failure and cardiovascular disease.American heart journal plus : cardiology research and practice · 2025
    Review
  4. Article
  5. Review
  6. 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

13 authors at 3 institutions in 3 countries.

Marie C ConwayNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK.
Emeir M McSorleyNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK.
Maria S MulhernNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK.
Toni SpenceNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK.
Edwin van WijngaardenSchool of Medicine and Dentistry, University of Rochester, Rochester, USA.
Gene E WatsonSchool of Medicine and Dentistry, University of Rochester, Rochester, USA.
Karin WahlbergThe Laboratory of Medicine, Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.
Daniela PinedaThe Laboratory of Medicine, Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.
Karin BrobergThe Laboratory of Medicine, Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.
Barry W HylandMass Spectrometry Centre, Biomedical Sciences Research Institute (BMSRI), Ulster University, Coleraine, Northern Ireland, UK.
Diego F CobiceMass Spectrometry Centre, Biomedical Sciences Research Institute (BMSRI), Ulster University, Coleraine, Northern Ireland, UK.
J J StrainNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK.
Alison J YeatesNutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, Northern Ireland, UK. a.yeates@ulster.ac.uk.ORCID http://orcid.org/0000-0002-2393-1663
University of Ulster · GBLund University · SEUniversity of Rochester · US

Funding

VISUAL INDICES OF NEUROTOXICITYP30ES001247 · NIEHS · UNIVERSITY OF ROCHESTER · PI Sally W Thurston · 1985 to 2026
$42.8M
TOXICITY OF METHYL MERCURY IN A FISH EATING POPULATIONR01ES010219 · NIEHS · UNIVERSITY OF ROCHESTER · PI VAN WIJNGAARDEN, EDWIN · 2000 to 2019
$11.8M
NIEHS NIH HHS P30 ES001247NIEHS NIH HHS R01 ES010219NIH HHS P30-ES01247NIH HHS R01-ES010219
6 · The paper itself

Abstract

purposeLong-chain polyunsaturated fatty acids (LCPUFA) can be synthesised endogenously from linoleic acid (LA) and α-linolenic acid (ALA) in a pathway involving the fatty acid desaturase (FADS) genes. Endogenous synthesis is inefficient; therefore, dietary intake of preformed LCPUFA from their richest source of fish is preferred. This study investigated the effect of fish consumption on PUFA concentrations in women of childbearing age while stratifying by FADS genotype. The influence of fish consumption on lipid profile, and markers of inflammation and oxidative stress was also examined.

methodsHealthy women (n = 49) provided a buccal swab which was analysed for FADS2 genotype (rs3834458; T/deletion). Participants were stratified according to genotype and randomised to an intervention group to receive either no fish (n = 18), 1 portion (n = 14) or 2 portions (n = 17) (140 g per portion) of fish per week for a period of 8 weeks. Serum PUFA was analysed at baseline and post-intervention. Lipid profile, and markers of inflammation and oxidative stress were also analysed.

resultsParticipants consuming 2 portions of fish per week had significantly higher concentrations of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and total n-3 PUFA, and a lower n-6:n-3 ratio compared to those in the no fish or 1 portion per week group (all p < 0.05). Fish consumption did not have a significant effect on biomarkers of oxidative stress, inflammation and lipid profile in the current study.

conclusionConsumption of 2 portions of fish per week has beneficial effects on biological n-3 PUFA concentrations in women of childbearing age; however, no effects on oxidative stress, inflammation or lipid profile were observed. This trial was registered at www.clinicaltrials.gov (NCT03765580), registered December 2018.

Indexed as

Fatty Acid DesaturasesFatty Acids, Omega-3AnimalsDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acids, UnsaturatedFemaleFishesHumansLinoleic AcidDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acid DesaturasesFatty Acids, Omega-3Fatty Acids, UnsaturatedLinoleic AcidDocosahexaenoic acidEicosapentaenoic acidFADSFatty acid desaturaseFish consumptionPolyunsaturated fatty acids

Identifiers

PMID32725293
PMCPMC7987591
OpenAlexW3044670155

What OpenQuestion holds

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LicenceCC BY
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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.