Evidence map›Paper›PMID 22570367›Full record

ArticleCirculation research2012

Simultaneous voltage and calcium mapping of genetically purified human induced pluripotent stem cell-derived cardiac myocyte monolayers.

Peter Lee, Matt Klos, Christian Bollensdorff, Luqia Hou, Paul Ewart, Timothy J Kamp, Jianhua Zhang, Alexandra Bizy, Guadalupe Guerrero-Serna, Peter Kohl and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Circulation research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed
6.5field-weighted citation impact, top 2% 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

98 citing papers in PubMed, 173 citations in OpenAlex.

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  14. Cardiomyocyte electrophysiology and its modulation: current views and future prospects.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
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38 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Peter LeeDepartment of Physics, University of Oxford, Oxford, UK.
Matt Klos
Christian Bollensdorff
Luqia Hou
Paul Ewart
Timothy J Kamp
Jianhua Zhang
Alexandra Bizy
Guadalupe Guerrero-Serna
Peter Kohl
José Jalife
Todd J Herron
Imperial College London · GBUniversity of Oxford · GB

Funding

THREE DIMENSIONAL VORTEX LIKE REENTRY IN CORONARY PERFUSED VENTRICULAR WALLP01HL039707 · NHLBI · UPSTATE MEDICAL UNIVERSITY · PI JALIFE, JOSE S · 1990 to 2010
$19.0M
P3: Biophysical Mechanisms in two Arhythmogenic DiseasesP01HL087226 · NHLBI · UPSTATE MEDICAL UNIVERSITY · PI JALIFE, JOSE S · 2007 to 2012
$10.3M
Midwest Progenitor Cell ConsortiumU01HL099773 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI THOMSON, JAMES ALEXANDER · 2009 to 2015
$7.8M
British Heart Foundation FS/12/17/29532British Heart Foundation PG/09/031/27221NHLBI NIH HHS P01 HL039707NHLBI NIH HHS P01-HL039707NHLBI NIH HHS P01 HL087226NHLBI NIH HHS P01-HL087226NHLBI NIH HHS U01 HL099773
6 · The paper itself

Abstract

rationaleHuman induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) offer a powerful in vitro tool to investigate disease mechanisms and to perform patient-specific drug screening. To date, electrophysiological analysis of iPSC-CMs has been limited to single-cell recordings or low-resolution microelectrode array mapping of small cardiomyocyte aggregates. New methods of generating and optically mapping impulse propagation of large human iPSC-CM cardiac monolayers are needed.

objectiveOur first aim was to develop an imaging platform with versatility for multiparameter electrophysiological mapping of cardiac preparations, including human iPSC-CM monolayers. Our second aim was to create large electrically coupled human iPSC-CM monolayers for simultaneous action potential and calcium wave propagation measurements. METHODS AND

resultsA fluorescence imaging platform based on electronically controlled light-emitting diode illumination, a multiband emission filter, and single camera sensor was developed and utilized to monitor simultaneously action potential and intracellular calcium wave propagation in cardiac preparations. Multiple, large-diameter (≥1 cm), electrically coupled human cardiac monolayers were then generated that propagated action potentials and calcium waves at velocities similar to those commonly observed in rodent cardiac monolayers.

conclusionsThe multiparametric imaging system presented here offers a scalable enabling technology to measure simultaneously action potential and intracellular calcium wave amplitude and dynamics of cardiac monolayers. The advent of large-scale production of human iPSC-CMs makes it possible to now generate sufficient numbers of uniform cardiac monolayers that can be utilized for the study of arrhythmia mechanisms and offers advantages over commonly used rodent models.

Indexed as

Action PotentialsCalcium SignalingCells, CulturedCell SeparationGenetic EngineeringHumansInduced Pluripotent Stem CellsMyocytes, Cardiac

Identifiers

PMID22570367
PMCPMC3423450
OpenAlexW2106871016

What OpenQuestion holds

Textmetadata
LicenceTDM
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.