Evidence map›Paper›PMID 24349418›Full record

Trial reportPloS one2013

The disease-specific phenotype in cardiomyocytes derived from induced pluripotent stem cells of two long QT syndrome type 3 patients.

Azra Fatima, Shao Kaifeng, Sven Dittmann, Guoxing Xu, Manoj K Gupta, Matthias Linke, Ulrich Zechner, Filomain Nguemo, Hendrik Milting, Martin Farr and 2 more

Open access · goldAbstract readCase ReportsClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

52 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
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  5. Biophysical mechanisms of myocardium sodium channelopathies.Pflugers Archiv : European journal of physiology · 2024
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  9. Unwinding and spiral sliding of S4 and domain rotation of VSD during the electromechanical coupling in NaProceedings of the National Academy of Sciences of the United States of America · 2022
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  18. High-Throughput Reclassification of SCN5A Variants.American journal of human genetics · 2020
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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

12 authors at 3 institutions in 1 country.

Azra FatimaInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Shao KaifengInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Sven DittmannHeart and Diabetes Center NRW, University Hospital of the Ruhr-University of Bochum, Bad Oeynhausen, Germany ; Erich & Hanna Klessmann-Institute for Cardiovascular Research and Development, Bad Oeynhausen, Germany.
Guoxing XuInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Manoj K GuptaInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Matthias LinkeInstitute for Human Genetics, Johannes Gutenberg University, Mainz, Germany.
Ulrich ZechnerInstitute for Human Genetics, Johannes Gutenberg University, Mainz, Germany.
Filomain NguemoInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Hendrik MiltingHeart and Diabetes Center NRW, University Hospital of the Ruhr-University of Bochum, Bad Oeynhausen, Germany ; Erich & Hanna Klessmann-Institute for Cardiovascular Research and Development, Bad Oeynhausen, Germany.
Martin FarrHeart and Diabetes Center NRW, University Hospital of the Ruhr-University of Bochum, Bad Oeynhausen, Germany ; Erich & Hanna Klessmann-Institute for Cardiovascular Research and Development, Bad Oeynhausen, Germany.
Jürgen HeschelerInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
Tomo SarićInstitute for Neurophysiology, Medical Center, University of Cologne, Cologne, Germany.
University of Cologne · DEHeart and Diabetes Center North Rhine-Westphalia · DEJohannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Long QT syndromes (LQTS) are heritable diseases characterized by prolongation of the QT interval on an electrocardiogram, which often leads to syncope and sudden cardiac death. Here we report the generation of induced pluripotent stems (iPS) cells from two patients with LQTS type 3 carrying a different point mutation in a sodium channel Nav1.5 (p.V240M and p.R535Q) and functional characterization of cardiomyocytes (CM) derived from them. The iPS cells exhibited all characteristic properties of pluripotent stem cells, maintained the disease-specific mutation and readily differentiated to CM. The duration of action potentials at 50% and 90% repolarization was longer in LQTS-3 CM as compared to control CM but this difference did not reach statistical significance due to high variations among cells. Sodium current recordings demonstrated longer time to peak and longer time to 90% of inactivation of the Na(+) channel in the LQTS-3 CM. This hints at a defective Na(+) channel caused by deficiency in open-state inactivation of the Na(+) channel that is characteristic of LQTS-3. These analyses suggest that the effect of channel mutation in the diseased CM is demonstrated in vitro and that the iPS cell-derived CM can serve as a model system for studying the pathophysiology of LQTS-3, toxicity testing and design of novel therapeutics. However, further improvements in the model are still required to reduce cell-to-cell and cell line-to-cell line variability.

Indexed as

Long QT SyndromeMyocytes, CardiacNAV1.5 Voltage-Gated Sodium ChannelPluripotent Stem CellsPoint MutationAction PotentialsAdultCell DifferentiationCells, CulturedFemaleHumansMaleMembrane PotentialsNAV1.5 Voltage-Gated Sodium ChannelSCN5A protein, human

Identifiers

PMID24349418
PMCPMC3859612
OpenAlexW1970848503

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.