Evidence map›Paper›PMID 28598979›Full record

ArticlePloS one2017

Association of maternal weight with FADS and ELOVL genetic variants and fatty acid levels- The PREOBE follow-up.

Andrea de la Garza Puentes, Rosa Montes Goyanes, Aida Maribel Chisaguano Tonato, Francisco José Torres-Espínola, Miriam Arias García, Leonor de Almeida, María Bonilla Aguirre, Marcela Guerendiain, Ana Isabel Castellote Bargalló, Maite Segura Moreno and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
6.5field-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.

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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Article
  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. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Association ofNutrients · 2023
    Article
  11. Article
  12. Metabolites · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

14 authors at 5 institutions in 2 countries.

Andrea de la Garza PuentesDepartment of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Rosa Montes GoyanesFood Research and Analysis Institute, University of Santiago de Compostela, Santiago de Compostela, Spain.
Aida Maribel Chisaguano TonatoNutrition, Public Health School, Faculty of Health Sciences, University of San Francisco de Quito, Quito, Ecuador.
Francisco José Torres-EspínolaCentre of Excellence for Paediatric Research EURISTIKOS, University of Granada, Granada, Spain.
Miriam Arias GarcíaCentre of Excellence for Paediatric Research EURISTIKOS, University of Granada, Granada, Spain.
Leonor de AlmeidaDepartment of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
María Bonilla AguirreDepartment of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Marcela GuerendiainSchool of Medicine, University of Chimborazo, Riobamba, Ecuador.
Ana Isabel Castellote BargallóDepartment of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Maite Segura MorenoCentre of Excellence for Paediatric Research EURISTIKOS, University of Granada, Granada, Spain.
Luz García-ValdésCentre of Excellence for Paediatric Research EURISTIKOS, University of Granada, Granada, Spain.
Cristina CampoyCentre of Excellence for Paediatric Research EURISTIKOS, University of Granada, Granada, Spain.
M Carmen Lopez-SabaterDepartment of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
PREOBE team
Instituto de Salud Carlos III · ESUniversidad de Granada · ESUniversitat de Barcelona · ESUniversidad Nacional de Chimborazo · ECUniversidad San Francisco de Quito · EC

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Single nucleotide polymorphisms (SNPs) in the genes encoding the fatty acid desaturase (FADS) and elongase (ELOVL) enzymes affect long-chain polyunsaturated fatty acid (LC-PUFA) production. We aimed to determine if these SNPs are associated with body mass index (BMI) or affect fatty acids (FAs) in pregnant women. Participants (n = 180) from the PREOBE cohort were grouped according to pre-pregnancy BMI: normal-weight (BMI = 18.5-24.9, n = 88) and overweight/obese (BMI≥25, n = 92). Plasma samples were analyzed at 24 weeks of gestation to measure FA levels in the phospholipid fraction. Selected SNPs were genotyped (7 in FADS1, 5 in FADS2, 3 in ELOVL2 and 2 in ELOVL5). Minor allele carriers of rs174545, rs174546, rs174548 and rs174553 (FADS1), and rs1535 and rs174583 (FADS2) were nominally associated with an increased risk of having a BMI≥25. Only for the normal-weight group, minor allele carriers of rs174537, rs174545, rs174546, and rs174553 (FADS1) were negatively associated with AA:DGLA index. Normal-weight women who were minor allele carriers of FADS SNPs had lower levels of AA, AA:DGLA and AA:LA indexes, and higher levels of DGLA, compared to major homozygotes. Among minor allele carriers of FADS2 and ELOVL2 SNPs, overweight/obese women showed higher DHA:EPA index than the normal-weight group; however, they did not present higher DHA concentrations than the normal-weight women. In conclusion, minor allele carriers of FADS SNPs have an increased risk of obesity. Maternal weight changes the effect of genotype on FA levels. Only in the normal-weight group, minor allele carriers of FADS SNPs displayed reduced enzymatic activity and FA levels. This suggests that women with a BMI≥25 are less affected by FADS genetic variants in this regard. In the presence of FADS2 and ELOVL2 SNPs, overweight/obese women showed higher n-3 LC-PUFA production indexes than women with normal weight, but this was not enough to obtain a higher n-3 LC-PUFA concentration.

Indexed as

Body WeightGenetic Association StudiesGenetic VariationMothersAcetyltransferasesAllelesBody Mass IndexDelta-5 Fatty Acid DesaturaseDiabetes, GestationalFatty Acid DesaturasesFatty Acid ElongasesFatty AcidsFatty Acids, UnsaturatedFemaleFollow-Up StudiesGenotypeAcetyltransferasesDelta-5 Fatty Acid DesaturaseELOVL2 protein, humanELOVL5 protein, humanFADS1 protein, humanFatty Acid DesaturasesFatty Acid ElongasesFatty AcidsFatty Acids, Unsaturated

Identifiers

PMID28598979
PMCPMC5466308
OpenAlexW2624646775

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.