Evidence map›Paper›PMID 27072949›Full record

ArticleCytoskeleton (Hoboken, N.J.)2016

Disassembly of myofibrils and potential imbalanced forces on Z-discs in cultured adult cardiomyocytes.

Honghai Liu, Wan Qin, Zhonghai Wang, Yonghong Shao, Jingcai Wang, Thomas K Borg, Bruce Z Gao, Meifeng Xu

Abstract read
In one paragraph

Article in Cytoskeleton (Hoboken, N.J.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
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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

8 authors.

Honghai LiuDepartment of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio, 45267.
Wan QinDepartment of Bioengineering and COMSET, Clemson University, Clemson, South Carolina, 29634.
Zhonghai WangDepartment of Bioengineering and COMSET, Clemson University, Clemson, South Carolina, 29634.
Yonghong ShaoKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Jingcai WangDepartment of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio, 45267.
Thomas K BorgDepartment of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, 29425.
Bruce Z GaoDepartment of Bioengineering and COMSET, Clemson University, Clemson, South Carolina, 29634.
Meifeng XuDepartment of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio, 45267.

Funding

UNDERSTANDING AND CONTROLLING TISSUE-SPECIFIC VASCULAR PATTERNINGP20RR021949 · NCRR · CLEMSON UNIVERSITY · PI MARKWALD, ROGER R · 2009 to 2011
$5.2M
MicroRNA as mediators of angiogenesis & ischemic myocardial repairR01HL114654 · NHLBI · UNIVERSITY OF CINCINNATI · PI ASHRAF, MUHAMMAD, XU, MEIFENG · 2012 to 2016
$2.5M
Wnt11 signaling in stem cell survival and cardiac regenerationR01HL105176 · NHLBI · UNIVERSITY OF CINCINNATI · PI ASHRAF, MUHAMMAD, JONES, WALTER KEITH · 2010 to 2014
$1.9M
NCRR NIH HHS P20 RR021949NHLBI NIH HHS R01 HL105176NHLBI NIH HHS R01 HL114654
6 · The paper itself

Abstract

Myofibrils are the main protein structures that generate force in the beating heart. Myofibril disassembly is related to many physiological and pathological processes. This study investigated, in a cultured rat adult cardiomyocyte model, the effect of force imbalance on myofibril disassembly. The imbalance of forces that were exerted on Z-discs was induced by the synergistic effect of broken intercalated discs and actin-myosin interaction. Cardiomyocytes with well-preserved intercalated discs were isolated from adult rat ventricles. The ultrastructure of cardiomyocyte was observed using a customized two-photon excitation fluorescence and second harmonic generation imaging system. The contraction of cardiomyocytes was recorded with a high-speed CCD camera, and the movement of cellular components was analyzed using a contractile imaging assay technique. The cardiomyocyte dynamic remodeling process was recorded using a time-lapse imaging system. The role of actin-myosin interaction in myofibril disassembly was investigated by incubating cardiomyocytes with blebbistatin (25 μM). Results demonstrated that the hierarchical disassembly process of myofibrils was initiated from cardiomyocyte free ends where intercalated discs had broken, during which the desmin network near the free cell ends was destroyed to release single myofibrils. Analysis of force (based on a schematic model of cardiomyocytes connected at intercalated discs) suggests that breaking of intercalated discs caused force imbalance on both sides of the Z-discs adjacent to the cell ends due to actin-myosin interaction. The damaged intercalated discs and actin-myosin interaction induced force imbalance on both sides of the Z-discs, which played an important role in the hierarchical disassembly of myofibrils. © 2016 Wiley Periodicals, Inc.

Indexed as

Models, BiologicalActinsAnimalsHeart VentriclesHeterocyclic Compounds, 4 or More RingsMyofibrilsMyosinsRatsRats, Sprague-DawleyActinsblebbistatinHeterocyclic Compounds, 4 or More RingsMyosinscardiomyocytedisassembly of myofibrilsimbalanced forceintercalated discZ-disc

Identifiers

PMID27072949
PMCPMC5642039

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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.