Evidence map›Paper›PMID 40080390›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2025

Tissue elasticity modulates cardiac pacemaker cell automaticity.

Young Hwan Choi, Jing Leng, Jinqi Fan, Rafael J Ramirez, Hee Cheol Cho

Abstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

5 authors.

Young Hwan ChoiThe Blalock-Taussig-Thomas Pediatric and Congenital Heart Center, Johns Hopkins Children's Center, Baltimore, Maryland, United States.ORCID 0000-0003-1047-1693
Jing LengThe Blalock-Taussig-Thomas Pediatric and Congenital Heart Center, Johns Hopkins Children's Center, Baltimore, Maryland, United States.
Jinqi FanThe Blalock-Taussig-Thomas Pediatric and Congenital Heart Center, Johns Hopkins Children's Center, Baltimore, Maryland, United States.
Rafael J RamirezThe Blalock-Taussig-Thomas Pediatric and Congenital Heart Center, Johns Hopkins Children's Center, Baltimore, Maryland, United States.
Hee Cheol ChoThe Blalock-Taussig-Thomas Pediatric and Congenital Heart Center, Johns Hopkins Children's Center, Baltimore, Maryland, United States.ORCID 0000-0002-6208-3417

Funding

Patterning myocardial specification of human pluripotent stem cellsR01HL143065 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHO, HEE CHEOL · 2019 to 2022
$2.3M
Self organization of the sinoatrial nodeR01HL147270 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHO, HEE CHEOL · 2020 to 2023
$2.0M
Heart rate control with bioengineered pacemakersR01HL157363 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHO, HEE CHEOL · 2021 to 2024
$1.7M
mRNA biological pacemakerR01HL176951 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI Hee Cheol Cho · 2025 to 2026
$1.4M
American Heart Association (AHA) 20TPA35260085HHS | National Institutes of Health (NIH) R01HL143065HHS | National Institutes of Health (NIH) R01HL147270HHS | National Institutes of Health (NIH) R01HL157363NHLBI NIH HHS R01 HL143065NHLBI NIH HHS R01 HL147270NHLBI NIH HHS R01 HL157363NHLBI NIH HHS R01 HL176951U.S. Department of Defense (DOD) CDMRP GRANT12901705 PR191598
6 · The paper itself

Abstract

Tissue elasticity is essential to a broad spectrum of cell biology and organ function including the heart. Routine cell culture models on rigid polystyrene dishes are limited in studying the impact of tissue elasticity in distinct regions of the myocardium such as the cardiac conduction system. Gelatin, a derivative of collagen, is a simple and tunable platform for modeling tissue elasticity. We sought to study the effects of increasing tissue stiffness on cardiac pacemaker cell function by using transcription factor-reprogrammed pacemaker cells cultured on gelatin hydrogels with specific elasticity. Our data indicate that automaticity of the pacemaker cells, measured in rhythmic contractions and oscillating intracellular Ca

Indexed as

Biological ClocksMyocardial ContractionMyocytes, CardiacAction PotentialsAnimalsCalcium SignalingCell ProliferationCells, CulturedConnexin 43ElasticityFibroblastsGelatinHydrogelsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsConnexin 43GelatinHydrogelsHyperpolarization-Activated Cyclic Nucleotide-Gated Channelselastic modulusgelatin hydrogelpacemaker cellssinoatrial nodeTBX18

Identifiers

PMID40080390
PMCPMC13035349

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.