Evidence map›Paper›PMID 32223014›Full record

ArticleActa physiologica (Oxford, England)2020

Polyunsaturated fatty acid-derived I

Mark A Skarsfeldt, Sara I Liin, Hans P Larsson, Bo H Bentzen

Open access · greenAbstract read
In one paragraph

Article in Acta physiologica (Oxford, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Beneficial action potential duration-shortening effects, but deleterious negative inotropism of IKs-activator docosahexaenoyl glycine in long QT syndrome type 2.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
    Article
  4. Current and future precision therapy approaches in the long QT syndrome.Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Docosahexaenoic acid normalizes QT interval in long QT type 2 transgenic rabbit models in a genotype-specific fashion.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2022
    Article
  9. Insights into Cardiac IKs (KCNQ1/KCNE1) Channels Regulation.International journal of molecular sciences · 2020
    Review
  10. Polyunsaturated Fatty Acids as Modulators of KFrontiers in physiology · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Mark A SkarsfeldtDepartment of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0003-4765-9243
Sara I LiinDepartment of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0001-8493-0114
Hans P LarssonDepartment of Physiology and Biophysics, University of Miami, Miami, FL, USA.
Bo H BentzenThe Danish Arrhythmia Research Centre and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-0253-4992
Linköping University · SEUniversity of Copenhagen · DKUniversity of Miami · US

Funding

Polyunsaturated fatty acids as anti-arrhythmic agents.R01HL131461 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI BARRO-SORIA, RENE, DYKXHOORN, DEREK MICHAEL · 2016 to 2024
$5.1M
Modulation of KCNQ1 channel activityR01GM109762 · NIGMS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI KASS, ROBERT S, LARSSON, HANS PETER · 2014 to 2022
$3.1M
NHLBI NIH HHS R01 HL131461NIGMS NIH HHS R01 GM109762NIH HHS R01GM109762
6 · The paper itself

Abstract

aimWe aimed to assess the ability of natural and modified polyunsaturated fatty acids (PUFAs) to shorten QT interval in ex-vivo and in-vivo guinea pig hearts.

methodsThe effect of one natural (docosahexaenoic acid [DHA]) and three modified (linoleoyl glycine [Lin-GLY], docosahexaenoyl glycine [DHA-GLY], N-arachidonoyl taurine [N-AT]) PUFAs on ventricular action potential duration (APD) and QT interval was studied in a E4031 drug-induced long QT2 model of ex-vivo guinea pig hearts. The effect of DHA-GLY on QT interval was also studied in in-vivo guinea pig hearts upon intravenous administration. The effect of modified PUFAs on I

resultsAll tested PUFAs shortened ADP and QT interval in ex-vivo guinea pig hearts, however, with different ability in restoring baseline APD/QT interval with specific modified PUFAs being most efficacious. Despite comparable ability in activating the human KCNQ1/KCNE1 channel, Lin-GLY was not as effective in shortening APD/QT interval as DHA-GLY in ex-vivo hearts. By constructing a guinea pig-like KCNE1, we found Lin-GLY to induce less activating effect compared with DHA-GLY on human KCNQ1 co-expressed with guinea pig-like KCNE1. Docosahexaenoyl glycine was studied in more detail and was found to shorten QT interval in in-vivo guinea pig hearts.

conclusionOur results show that specific PUFAs shorten QT interval in guinea pig hearts. The tendency of modified PUFAs with pronounced I

Indexed as

Action PotentialsAnimalsFatty Acids, UnsaturatedGuinea PigsHeartHeart VentriclesIn Vitro TechniquesKCNQ1 Potassium ChannelLong QT SyndromeOocytesPotassium Channels, Voltage-GatedXenopus laevisFatty Acids, UnsaturatedKCNE1 protein, humanKCNQ1 Potassium ChannelKCNQ1 protein, humanPotassium Channels, Voltage-Gatedguinea pig heartIKs channelKCNQ1Kv7.1long QT syndromePUFA

Identifiers

PMID32223014
PMCPMC8633721
OpenAlexW3013751252

What OpenQuestion holds

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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.