Evidence map›Paper›PMID 28975460›Full record

ArticleAnnals of biomedical engineering2018

Simultaneous Measurement of Contraction and Calcium Transients in Stem Cell Derived Cardiomyocytes.

A Ahola, R-P Pölönen, K Aalto-Setälä, J Hyttinen

Open access · hybridAbstract read
In one paragraph

Article in Annals of biomedical engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.7field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
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  5. Light in a Heartbeat: Bond Scission by a Single Photon above 800 nm.Journal of the American Chemical Society · 2024
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  9. Virtual blebbistatin: A robust and rapid software approach to motion artifact removal in optical mapping of cardiomyocytes.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  15. A NovelFrontiers in physiology · 2022
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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

4 authors at 2 institutions in 1 country.

A AholaBioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Korkeakoulunkatu 10, 33720, Tampere, Finland. antti.l.ahola@tut.fi.ORCID http://orcid.org/0000-0003-2588-4343
R-P PölönenBioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.
K Aalto-SetäläBioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.
J HyttinenBioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Korkeakoulunkatu 10, 33720, Tampere, Finland.
Tampere University · FITampere University · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Induced pluripotent stem cell derived cardiomyocytes (iPSC-CM) provide a powerful platform for disease modeling and drug development in vitro. Traditionally, electrophysiological methods or fluorescent dyes (e.g. calcium) have been used in their functional characterization. Recently, video microscopy has enabled non-invasive analysis of CM contractile motion. Simultaneous assessments of motion and calcium transients have not been generally conducted, as motion detection methods are affected by changing pixel intensities in calcium imaging. Here, we present for the first time a protocol for simultaneous video-based measurement of contraction and calcium with fluorescent dye Fluo-4 videos without corrections, providing data on both ionic and mechanic activity. The method and its accuracy are assessed by measuring the effect of fluorescence and background light on transient widths and contraction velocity amplitudes. We demonstrate the method by showing the contraction-calcium relation and measuring the transient time intervals in catecholaminergic polymorphic ventricular tachycardia patient specific iPSC-CMs and healthy controls. Our validation shows that the simultaneous method provides comparable data to combined individual measurements, providing a new tool for measuring CM biomechanics and calcium simultaneously. Our results with calcium sensitive dyes suggest the method could be expanded to use with other fluorescent reporters as well.

Indexed as

Myocardial ContractionAniline CompoundsCalciumCalcium SignalingCell LineFluorescent DyesHumansInduced Pluripotent Stem CellsMicroscopy, VideoMyocytes, CardiacOptical ImagingXanthenesAniline CompoundsCalciumFluo 4Fluorescent DyesXanthenesBiomechanicsCalcium-contraction couplingFluorescenceMotion analysis

Identifiers

PMID28975460
PMCPMC5754453
OpenAlexW2761914792

What OpenQuestion holds

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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.