Evidence map›Paper›PMID 21733300›Full record

ArticleThe British journal of nutrition2012

Differences in arachidonic acid levels and fatty acid desaturase (FADS) gene variants in African Americans and European Americans with diabetes or the metabolic syndrome.

Susan Sergeant, Christina E Hugenschmidt, Megan E Rudock, Julie T Ziegler, Priscilla Ivester, Hannah C Ainsworth, Dhananjay Vaidya, L Douglas Case, Carl D Langefeld, Barry I Freedman and 3 more

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The British journal of nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02962128 (Role of PUFA-Gene Interactions in Health Disparities), which is not on this map. Cited by 103 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 3 pooled it
7.5field-weighted citation impact, top 2% 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.

NCT02962128 nacompletednot on this mapstarted 2016, after this paper: background citation

Role of PUFA-Gene Interactions in Health Disparities

TypeinterventionalSponsorWake Forest University Health SciencesRan2016 to 2021Enrolled80ConditionsFatty Acid-Gene InteractionsArmsHigh Linoleic Acid (LA) Diet, Low Linoleic Acid (LA) Diet
3 · Its place in the literature

Who cites it

103 citing papers in PubMed, 3 syntheses or guidelines pooled it, 172 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
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  8. Polyunsaturated fatty acid metabolism in the retinal pigment epithelium and its association with outer retinal disease.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Fatty acid desaturase genetic variations in heart failure and cardiovascular disease.American heart journal plus : cardiology research and practice · 2025
    Review
  16. The influence ofFrontiers in nutrition · 2025
    Article
  17. Semi-supervised Triply Robust Inductive Transfer Learning.Journal of the American Statistical Association · 2025
    Article
  18. Observational
  19. Article
  20. Article

43 more citing papers are in PubMed but not listed here.

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 1 country.

Susan SergeantThe Center for Botanical Lipids and Inflammatory Disease Prevention, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA.
Christina E Hugenschmidt
Megan E Rudock
Julie T Ziegler
Priscilla Ivester
Hannah C Ainsworth
Dhananjay Vaidya
L Douglas Case
Carl D Langefeld
Barry I Freedman
Donald W Bowden
Rasika A Mathias
Floyd H Chilton
Wake Forest University · USJohns Hopkins Medicine · USJohns Hopkins University · US

Funding

ZINC AND CA EDTA THERAPY OF PLUMBISMM01RR000052 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FLEXNER, CHARLES W. · 1985 to 2007
$37.3M
WORKER PROTECTION AGAINST AIRBORNE INFLUENZA - A PILOT STUDYM01RR007122 · NCRR · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HOLMES, ROSS P · 1992 to 2010
$35.2M
The Wake Forest Center for Botanical Lipids and Inflammatory Disease PreventionP50AT002782 · NCCIH · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI CHILTON, FLOYD H · 2005 to 2014
$15.3M
Subclinical CVD in African American Type 2 DiabeticsR01DK071891 · NIDDK · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI FREEDMAN, BARRY IRA · 2007 to 2016
$4.5M
Genetic Epidemiology of Cerebrovascular Disease and Cognition in DiabetesR01NS058700 · NINDS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI BOWDEN, DONALD W · 2008 to 2012
$3.0M
Nurse Model in Black Families at Risk for Heart DiseaseR01NR008153 · NINR · JOHNS HOPKINS UNIVERSITY · PI BECKER, DIANE M · 2002 to 2005
$2.2M
Genetic and imaging analysis of cerebrovascular disease and cognition in diabetesF32DK083214 · NIDDK · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HUGENSCHMIDT, CHRISTINA E · 2008 to 2011
$157k
NCCIH NIH HHS P50 AT002782NCRR NIH HHS M01 RR000052NCRR NIH HHS M01 RR007122NCRR NIH HHS M01 RR07122NCRR NIH HHS R01 RR000052NHLBI NIH HHS R01 HL637348NIDDK NIH HHS F32 DK083214NIDDK NIH HHS F32DK083214NIDDK NIH HHS R01 DK 071891NIDDK NIH HHS R01 DK071891NINDS NIH HHS R01 NS058700NINR NIH HHS R01 NR008153NINR NIH HHS R01 NR08153
6 · The paper itself

Abstract

Over the past 50 years, increases in dietary n-6 PUFA, such as linoleic acid, have been hypothesised to cause or exacerbate chronic inflammatory diseases. The present study examines an individual's innate capacity to synthesise n-6 long-chain PUFA (LC-PUFA) with respect to the fatty acid desaturase (FADS) locus in Americans of African and European descent with diabetes or the metabolic syndrome. Compared with European Americans (EAm), African Americans (AfAm) exhibited markedly higher serum levels of arachidonic acid (AA) (EAm 7·9 (sd 2·1), AfAm 9·8 (sd 1·9) % of total fatty acids; P < 2·29 × 10⁻⁹) and the AA:n-6-precursor fatty acid ratio, which estimates FADS1 activity (EAm 5·4 (sd 2·2), AfAm 6·9 (sd 2·2); P = 1·44 × 10⁻⁵). In all, seven SNP mapping to the FADS locus revealed strong association with AA, EPA and dihomo-γ-linolenic acid (DGLA) in the EAm. Importantly, EAm homozygous for the minor allele (T) had significantly lower AA levels (TT 6·3 (sd 1·0); GG 8·5 (sd 2·1); P = 3·0 × 10⁻⁵) and AA:DGLA ratios (TT 3·4 (sd 0·8), GG 6·5 (sd 2·3); P = 2·2 × 10⁻⁷) but higher DGLA levels (TT 1·9 (sd 0·4), GG 1·4 (sd 0·4); P = 3·3 × 10⁻⁷) compared with those homozygous for the major allele (GG). Allele frequency patterns suggest that the GG genotype at rs174537 (associated with higher circulating levels of AA) is much higher in AfAm (0·81) compared with EAm (0·46). Similarly, marked differences in rs174537 genotypic frequencies were observed in HapMap populations. These data suggest that there are probably important differences in the capacity of different populations to synthesise LC-PUFA. These differences may provide a genetic mechanism contributing to health disparities between populations of African and European descent.

Indexed as

Polymorphism, Single Nucleotide8,11,14-Eicosatrienoic AcidAgedArachidonic AcidBlack or African AmericanDelta-5 Fatty Acid DesaturaseDiabetes Mellitus, Type 2Eicosapentaenoic AcidFamily HealthFatty Acid DesaturasesFemaleGene FrequencyGenetic Association StudiesHumansLinkage DisequilibriumMale8,11,14-Eicosatrienoic AcidArachidonic AcidDelta-5 Fatty Acid DesaturaseEicosapentaenoic AcidFADS1 protein, humanFADS2 protein, humanFatty Acid Desaturases

Identifiers

PMID21733300
PMCPMC3494092
OpenAlexW2002977429

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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.