Evidence map›Paper›PMID 30875388›Full record

ArticlePloS one2019

The intracellular Ca2+ concentration is elevated in cardiomyocytes differentiated from hiPSCs derived from a Duchenne muscular dystrophy patient.

Fumitoshi Tsurumi, Shiro Baba, Daisuke Yoshinaga, Katsutsugu Umeda, Takuya Hirata, Junko Takita, Toshio Heike

Open access · goldAbstract readCase Reports
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

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  13. DMD Pluripotent Stem Cell Derived Cardiac Cells RecapitulateFrontiers in bioengineering and biotechnology · 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

7 authors at 1 institution in 1 country.

Fumitoshi TsurumiDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.ORCID 0000-0003-2670-2337
Shiro BabaDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Daisuke YoshinagaDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Katsutsugu UmedaDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Takuya HirataDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Junko TakitaDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Toshio HeikeDepartment of Pediatrics, Graduate School of Medicine Kyoto University, Kyoto City, Japan.
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Duchenne muscular dystrophy (DMD) is the most common and severe form of muscular dystrophy. The major symptoms of this condition are walking difficulties, dyspnea caused by progressive skeletal muscle weakness, and cardiomyopathy. Recent advances in ventilator support devices have dramatically decreased mortality caused by respiratory distress. Consequently, cardiomyopathy resulting in heart failure is currently the major cause of death among DMD patients. One mechanism by which skeletal muscle is damaged in DMD patients involves elevation of the intracellular Ca2+ concentration. By contrast, the mechanisms underlying the development of cardiomyopathy are unclear. To investigate this, we examined the intracellular Ca2+ concentration and calcium transients in cardiomyocytes differentiated from human induced pluripotent stem cells (hiPSCs). hiPSCs were derived from a DMD patient (DMD-hiPSCs), in whom exon 44 of the gene encoding dystrophin was deleted, and from his parents (control-hiPSCs), who did not carry this mutation. The intracellular Ca2+ concentration was measured using the fluorescent indicator indo-1. The fluorescence ratio (410/490 nm) of indo-1 at rest (R0), the peak of this ratio (Rmax), and the amplitude (Rmax-R0) were significantly higher in cardiomyocytes differentiated from DMD-hiPSCs than in those differentiated from control-hiPSCs. Moreover, mechanical stretching significantly increased the intracellular Ca2+ concentration in cardiomyocytes differentiated from DMD-hiPSCs, but not in those differentiated from control-hiPSCs. These findings indicate that elevation of the intracellular Ca2+ concentration can cause cardiac damage leading to cardiomyopathy in DMD patients.

Indexed as

Cell DifferentiationAnimalsCalciumCardiomyopathiesCells, CulturedChild, PreschoolHumansInduced Pluripotent Stem CellsMaleMiceMice, Inbred NODMice, SCIDMuscular Dystrophy, DuchenneMyocytes, CardiacCalcium

Identifiers

PMID30875388
PMCPMC6420015
OpenAlexW2921949254

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.