Evidence map›Paper›PMID 25500337›Full record

Trial reportProstaglandins, leukotrienes, and essential fatty acids2015

Docosahexaenoic acid (DHA) supplementation in pregnancy differentially modulates arachidonic acid and DHA status across FADS genotypes in pregnancy.

S A Scholtz, E H Kerling, D J Shaddy, S Li, J M Thodosoff, J Colombo, S E Carlson

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Prostaglandins, leukotrienes, and essential fatty acids, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00266825 (Kansas University DHA Outcome Study), which is not on this map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 15% 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.

NCT00266825 phase3completednot on this map

Kansas University DHA Outcome Study (KUDOS)

TypeinterventionalSponsorSusan Carlson, PhDRan2006 to 2011Enrolled350ConditionsPregnancyArmsDHA, Placebo capsule
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Omega-3 fatty acid addition during pregnancy.The Cochrane database of systematic reviews · 2018
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Article
  10. Article
  11. Association ofNutrients · 2023
    Article
  12. Promising Sources of Plant-Derived Polyunsaturated Fatty Acids: A Narrative Review.International journal of environmental research and public health · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
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

7 authors at 2 institutions in 1 country.

S A ScholtzDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA.
E H KerlingDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA.
D J ShaddyDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA; Department of Psychology, University of Kansas, Lawrence, KS, USA.
S LiDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA.
J M ThodosoffDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA.
J ColomboDepartment of Psychology, University of Kansas, Lawrence, KS, USA.
S E CarlsonDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA. Electronic address: scarlson@kumc.edu.
University of Kansas Medical Center · USUniversity of Kansas · US

Funding

Participant Recruitment and ManagementP30DC005803 · NIDCD · UNIVERSITY OF KANSAS LAWRENCE · PI RICE, MABEL L · 2002 to 2016
$5.8M
DHA Supplementation and Pregnancy OutcomeR01HD047315 · NICHD · UNIVERSITY OF KANSAS MEDICAL CENTER · PI CARLSON, SUSAN E, COLOMBO, JOHN A. · 2006 to 2016
$4.9M
NICHD NIH HHS HD047315NICHD NIH HHS R01 HD047315NIDCD NIH HHS P30 DC005803
6 · The paper itself

Abstract

Some FADS alleles are associated with lower DHA and ARA status assessed by the relative amount of arachidonic acid (ARA) and docosahexaenoic acid (DHA) in plasma and red blood cell (RBC) phospholipids (PL). We determined two FADS single nucleotide polymorphisms (SNPs) in a cohort of pregnant women and examined the relationship of FADS1rs174533 and FADS2rs174575 to DHA and ARA status before and after supplementation with 600mg per day of DHA. The 205 pregnant women studied were randomly assigned to placebo (mixed soy and corn oil) (n=96) or 600mg algal DHA (n=109) in 3 capsules per day for the last two trimesters of pregnancy. Women homozygous for the minor allele of FADS1rs174533 (but not FADS2rs174575) had lower DHA and ARA status at baseline. At delivery, minor allele homozygotes of FADS1rs174533 in the placebo group had lower RBC-DHA compared to major-allele carriers (P=0.031), while in the DHA-supplemented group, all genotypes had higher DHA status compared to baseline (P=0.001) and status did not differ by genotype (P=0.941). Surprisingly, DHA but not the placebo decreased ARA status of minor allele homozygotes of both FADS SNPs but not major allele homozygotes at delivery. Any physiological effects of changing the DHA to ARA ratio by increasing DHA intake appears to be greater in minor allele homozygotes of some FADS SNPs.

Indexed as

AdolescentAdultArachidonic AcidDelta-5 Fatty Acid DesaturaseDocosahexaenoic AcidsDrug Administration ScheduleFatty Acid DesaturasesFemaleGenotypeHumansPolymorphism, Single NucleotidePregnancyYoung AdultArachidonic AcidDelta-5 Fatty Acid DesaturaseDocosahexaenoic AcidsFADS2 protein, humanFatty Acid DesaturasesArachidonic acidDocosahexaenoic acidFADS SNPsPregnancy

Identifiers

PMID25500337
PMCPMC4339528
OpenAlexW2015831931

What OpenQuestion holds

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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.