Evidence map›Paper›PMID 28929400›Full record

Trial reportEuropean journal of nutrition2018

Can polymorphisms in the fatty acid desaturase (FADS) gene cluster alter the effects of fish oil supplementation on plasma and erythrocyte fatty acid profiles? An exploratory study.

Suzanne J Meldrum, Yuchun Li, Guicheng Zhang, Alexandra E M Heaton, Nina D'Vaz, Judith Manz, Eva Reischl, Berthold V Koletzko, Susan L Prescott, Karen Simmer

Open access · greenAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Review
  7. Fatty acid desaturase genetic variations in heart failure and cardiovascular disease.American heart journal plus : cardiology research and practice · 2025
    Review
  8. Review
  9. Article
  10. Association betweenNutrients · 2022
    Article
  11. Review
  12. Article
  13. Seafood, fatty acid biosynthesis genes, and multiple sclerosis susceptibility.Multiple sclerosis (Houndmills, Basingstoke, England) · 2020
    Article
  14. Article
  15. Review
  16. Observational
  17. Article
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

10 authors at 4 institutions in 3 countries.

Suzanne J MeldrumSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia. Suzanne.meldrum@uwa.edu.au.
Yuchun LiXinxiang Medical University, Xinxiang, Henan, China.
Guicheng ZhangSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Alexandra E M HeatonSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Nina D'VazSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Judith ManzResearch Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
Eva ReischlResearch Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
Berthold V KoletzkoResearch Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
Susan L PrescottSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Karen SimmerSchool of Paediatrics and Child Health M561, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
University of Western Australia · AUHelmholtz Zentrum München · DEThe Kids Research Institute Australia · AUXinxiang Medical University · CN

Funding

National Health and Medical Research Council 1004494
6 · The paper itself

Abstract

purposeThe enzymes encoded by fatty acid desaturases (FADS) genes determine the desaturation of long-chain polyunsaturated fatty acids (LCPUFA). We investigated if haplotype and single nucleotide polymorphisms (SNPs) in FADS gene cluster can influence LCPUFA status in infants who received either fish oil or placebo supplementation.

methodsChildren enrolled in the Infant Fish Oil Supplementation Study (IFOS) were randomly allocated to receive either fish oil or placebo from birth to 6 months of age. Blood was collected at 6 months of age for the measurement of fatty acids and for DNA extraction. A total of 276 participant DNA samples underwent genotyping, and 126 erythrocyte and 133 plasma fatty acid measurements were available for analysis. Twenty-two FADS SNPs were selected on the basis of literature and linkage disequilibrium patterns identified from the HapMap data. Haplotype construction was completed using PHASE.

resultsFor participants allocated to the fish oil group who had two copies of the FADS1 haplotype consisting of SNP minor alleles, DHA levels were significantly higher compared to other haplotypes. This finding was not observed for the placebo group. Furthermore, for members of the fish oil group only, the minor homozygous carriers of all the FADS1 SNPs investigated had significantly higher DHA than other genotypes (rs174545, rs174546, rs174548, rs174553, rs174556, rs174537, rs174448, and rs174455).

conclusionsOverall results of this preliminary study suggest that supplementation with fish oil may only significantly increase DHA in minor allele carriers of FADS1 SNPs. Further research is required to confirm this novel finding.

Indexed as

Polymorphism, Single NucleotideDelta-5 Fatty Acid DesaturaseErythrocytesFatty Acid DesaturasesFatty AcidsFemaleFish OilsHumansInfantMaleMultigene FamilyDelta-5 Fatty Acid DesaturaseFADS1 protein, humanFatty Acid DesaturasesFatty AcidsFish OilsFatty acid desaturase (FADS) genesFatty acidsHaplotypesLCPUFA supplementationSingle nucleotide polymorphisms (SNPs)

Identifiers

PMID28929400
OpenAlexW2754081322

What OpenQuestion holds

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Registered trials

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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.