Evidence map›Paper›PMID 19843460›Full record

ArticleBiophysical journal2009

Tuning passive mechanics through differential splicing of titin during skeletal muscle development.

Coen A C Ottenheijm, Anna M Knottnerus, Danielle Buck, Xiuju Luo, Kevin Greer, Adam Hoying, Siegfried Labeit, Henk Granzier

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

41 citing papers in PubMed, 76 citations in OpenAlex.

  1. Article
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  10. A mutation in desmin makes skeletal muscle less vulnerable to acute muscle damage after eccentric loading in rats.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
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  15. Article
  16. Microstructural analysis of skeletal muscle force generation during aging.International journal for numerical methods in biomedical engineering · 2020
    Article
  17. Positive End-Expiratory Pressure Ventilation Induces Longitudinal Atrophy in Diaphragm Fibers.American journal of respiratory and critical care medicine · 2018
    Article
  18. Article
  19. Article
  20. Review
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 at 2 institutions in 3 countries.

Coen A C OttenheijmDepartment of Physiology, University of Arizona, Tucson, Arizona, USA.
Anna M Knottnerus
Danielle Buck
Xiuju Luo
Kevin Greer
Adam Hoying
Siegfried Labeit
Henk Granzier
University of Arizona · USHeidelberg University · DE

Funding

Function of Giant Sarcomere Matrix Proteins in MuscleR01HL062881 · NHLBI · WASHINGTON STATE UNIVERSITY · PI GRANZIER, HENK L. · 1999 to 2018
$6.4M
ROLE OF TITIN IN FUNCTIONAL TRANSITIONS DURING MUSCLE DEVELOPMENT AND AGINGR01HL084579 · NHLBI · UNIVERSITY OF ARIZONA · PI GRANZIER, HENK L. · 2007 to 2011
$1.9M
NHLBI NIH HHS HL062881NHLBI NIH HHS HL084579NHLBI NIH HHS R01 HL062881NHLBI NIH HHS R01 HL084579
6 · The paper itself

Abstract

During postnatal development, major changes in mechanical properties of skeletal muscle occur. We investigated passive properties of skeletal muscle in mice and rabbits that varied in age from 1 day to approximately 1 year. Neonatal skeletal muscle expressed large titin isoforms directly after birth, followed by a gradual switch toward progressively smaller isoforms that required weeks-to-months to be completed. This suggests an extremely high plasticity of titin splicing during skeletal muscle development. Titin exon microarray analysis showed increased expression of a large group of exons in neonatal muscle, when compared to adult muscle transcripts, with the majority of upregulated exons coding for the elastic proline-glutamate-valine-lysine (PEVK) region of titin. Protein analysis supported expression of a significantly larger PEVK segment in neonatal muscle. In line with these findings, we found >50% lower titin-based passive stiffness of neonatal muscle when compared to adult muscle. Inhibiting 3,5,3'-tri-iodo-L-thyronine and 3,5,3',5'-tetra-iodo-L-thyronine secretion did not alter isoform switching, suggesting no major role for thyroid hormones in regulating differential titin splicing during postnatal development. In summary, our work shows that stiffening of skeletal muscle during postnatal development occurs through a decrease in titin isoform size, due mainly to a marked restructuring of the PEVK region of titin.

Indexed as

RNA SplicingAnimalsAnimals, NewbornAnkyrin RepeatConnectinElasticityExonsGene Expression Regulation, DevelopmentalMiceMice, Inbred StrainsMuscle ProteinsMuscle, SkeletalProtein IsoformsProtein KinasesRabbitsThyroninesConnectinMuscle ProteinsProtein IsoformsProtein KinasesThyroninesThyroxine

Identifiers

PMID19843460
PMCPMC2764098
OpenAlexW1964935235

What OpenQuestion holds

Textmetadata
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.