Evidence map›Paper›PMID 26584805›Full record

ArticleGenes & nutrition2015

A genome-wide association study of n-3 and n-6 plasma fatty acids in a Singaporean Chinese population.

Rajkumar Dorajoo, Ye Sun, Yi Han, Tingjing Ke, Ayala Burger, Xuling Chang, Hui Qi Low, Weihua Guan, Rozenn N Lemaitre, Chiea-Chuen Khor and 8 more

Open access · bronzeAbstract read
In one paragraph

Article in Genes & nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
9.8field-weighted citation impact, top 1% 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 88 citations in OpenAlex.

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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

18 authors at 7 institutions in 3 countries.

Rajkumar DorajooGenome Institute of Singapore, Agency for Science Technology and Research, Singapore, Singapore.
Ye SunSaw Swee Hock School of Public Health, National University Health System, National University of Singapore, Singapore, Singapore.
Yi HanDepartment of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Tingjing KeDepartment of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Ayala BurgerDepartment of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Xuling ChangDepartment of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Hui Qi LowGenome Institute of Singapore, Agency for Science Technology and Research, Singapore, Singapore.
Weihua GuanDivision of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, USA.
Rozenn N LemaitreCardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA.
Chiea-Chuen KhorGenome Institute of Singapore, Agency for Science Technology and Research, Singapore, Singapore.
Jian-Min YuanDepartment of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.
Woon-Puay KohSaw Swee Hock School of Public Health, National University Health System, National University of Singapore, Singapore, Singapore.
Choon Nam OngSaw Swee Hock School of Public Health, National University Health System, National University of Singapore, Singapore, Singapore.
E Shyong TaiSaw Swee Hock School of Public Health, National University Health System, National University of Singapore, Singapore, Singapore.
Jianjun LiuGenome Institute of Singapore, Agency for Science Technology and Research, Singapore, Singapore.
Rob M van DamSaw Swee Hock School of Public Health, National University Health System, National University of Singapore, Singapore, Singapore.
Chew-Kiat HengDepartment of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore, 119228, Singapore. paehck@nus.edu.sg.
Yechiel FriedlanderUnit of Epidemiology, Hebrew University-Hadassah Braun School of Public Health, POB 12272, 91120, Jerusalem, Israel. yechielf@ekmd.huji.ac.il.
National University of Singapore · SGAgency for Science, Technology and Research · SGNational University Health System · SGHebrew University of Jerusalem · ILUniversity of Minnesota · USUniversity of Pittsburgh · USUniversity of Washington · US

Funding

Prospective studies of cancer etiology and prevention in Shanghai and SingaporeR01CA144034 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YUAN, JIAN-MIN · 2010 to 2014
$7.0M
THE SINGAPORE COHORT STUDY OF DIET AND CANCERR01CA080205 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YUAN, JIAN-MIN · 1999 to 2009
$5.3M
Cancer epidemiology cohorts in Shanghai and Singapore UM1CA182876 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YUAN, JIAN-MIN · 2014 to 2018
$4.3M
The Singapore Chinese Health StudyU01CA182876 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YUAN, JIAN-MIN · 2019 to 2019
$150k
NCI NIH HHS R01 CA080205NCI NIH HHS R01 CA144034NCI NIH HHS U01 CA182876NCI NIH HHS UM1 CA182876
6 · The paper itself

Abstract

Polyunsaturated fatty acids (PUFAs) have a major impact on human health. Recent genome-wide association studies (GWAS) have identified several genetic loci that are associated with plasma levels of n-3 and n-6 PUFAs in primarily subjects of European ancestry. However, the relevance of these findings has not been evaluated extensively in other ethnic groups. The primary aim of this study was to evaluate for genetic loci associated with n-3 and n-6 PUFAs and to validate the role of recently identified index loci using data from a Singaporean Chinese population. Using a GWAS approach, we evaluated associations with plasma concentrations of three n-3 PUFAs [alphalinolenic acid (ALA), eicosapentaenoic acid and docosahexaenoic acid], four n-6 PUFAs [linoleic acid (LA), gammalinolenic acid, dihomogammalinolenic acid (DGLA) and arachidonic acid], and estimates of delta-5 desaturase and delta-6 desaturase activities among the participants (N = 1361) of the Singaporean Chinese Health Study. Our results reveal robust genome-wide associations (p value <5 × 10(-8)) with ALA, all four n-6 PUFAs, and delta-6 desaturase activity at the FADS1/FADS2 locus. We further replicated the associations between common index variants at the NTAN1/PDXDC1 locus and n-6 PUFAs LA and DGLA, and between the JMJD1C locus and n-6 PUFA LA (p value between 0.0490 and 9.88 × 10(-4)). These associations were independent of dietary intake of PUFAs. In aggregate, we show that genetic loci that influence plasma concentrations of n-3 and n-6 PUFAs are shared across different ethnic groups.

Indexed as

Genome-wide association studyn-3 Fatty acidsn-6 Fatty acidsPolyunsaturated fatty acids

Identifiers

PMID26584805
PMCPMC4653118
OpenAlexW2275022212

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.