Evidence map›Paper›PMID 29889889›Full record

ArticlePloS one2018

Adipose tissue content of alpha-linolenic acid and the risk of ischemic stroke and ischemic stroke subtypes: A Danish case-cohort study.

Christian Sørensen Bork, Stine Krogh Venø, Søren Lundbye-Christensen, Marianne Uhre Jakobsen, Anne Tjønneland, Philip C Calder, Kim Overvad, Erik Berg Schmidt

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
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  3. Maternal active asthma in pregnancy influences associations between polyunsaturated fatty acid intake and child asthma.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2021
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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

8 authors at 5 institutions in 2 countries.

Christian Sørensen BorkDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.ORCID 0000-0001-5233-2902
Stine Krogh VenøDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Søren Lundbye-ChristensenUnit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark.
Marianne Uhre JakobsenNational Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.ORCID 0000-0001-6518-4136
Anne TjønnelandDanish Cancer Society Research Center, Copenhagen, Denmark.
Philip C CalderHuman Development & Health Academic Unit, Faculty of Medicine, University of Southampton, MP887 Southampton General Hospital, Southampton, United Kingdom.
Kim OvervadDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Erik Berg SchmidtDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Aalborg University Hospital · DKAarhus University · DKDanish Cancer Society · DKSouthampton General Hospital · GBTechnical University of Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe plant-derived omega-3 fatty acid alpha-linolenic acid (ALA) may reduce the risk of cardiovascular disease.

objectiveWe have investigated associations between the content of ALA in adipose tissue and the risk of ischemic stroke and its subtypes.

methodsIncident cases of ischemic stroke among participants enrolled into the Danish Diet, Cancer and Health cohort (n = 57,053) were identified by linkage with the Danish National Patient Register. Subsequently, all potential cases were validated and classified into ischemic stroke subtypes. The fatty acid composition of adipose tissue was determined by gas chromatography in cases and in a randomly drawn sub-cohort (n = 3500). Statistical analyses were performed using weighted Cox regression.

resultsDuring a median of 13.4 years of follow-up, 1735 cases of total ischemic stroke were identified including 297 cases of large artery atherosclerosis, 772 cases of small-vessel occlusion, 99 cases of cardio-embolism, 91 cases with stroke of other etiology and 476 cases with stroke of undetermined etiology. The median content of ALA in adipose tissue within the sub-cohort was 0.84% (95% central range: 0.53-1.19%). Multivariable analyses showed a U-shaped association between adipose tissue content of ALA and the rate of total ischemic stroke, but this association was not statistically significant (p = 0.172). In analyses of ischemic stroke subtypes, we observed a statistically significant U-shaped association between ALA and the rate of ischemic stroke due to large artery atherosclerosis (p = 0.017), whereas no appreciable association was observed between ALA and the rate of small-vessel occlusion (p = 0.427). A positive but statistically non-significant association was observed between ALA and the rate of ischemic stroke due to cardio-embolism (p = 0.162).

conclusionsThe content of ALA in adipose tissue was statistically non-significantly U-shaped associated with risk of total ischemic stroke. For ischemic stroke subtypes a statistically significant, U-shaped association with large artery atherosclerosis was observed.

Indexed as

Adipose Tissuealpha-Linolenic AcidChromatography, GasCohort StudiesComorbidityDenmarkExerciseFemaleHumansMaleMiddle AgedProportional Hazards ModelsRisk FactorsSmokingStrokeWaist Circumferencealpha-Linolenic Acid

Identifiers

PMID29889889
PMCPMC5995395
OpenAlexW2808660861

What OpenQuestion holds

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LicenceCC BY
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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.