Evidence map›Paper›PMID 27979987›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2017

Altered nuclear dynamics in MDX myofibers.

Shama R Iyer, Sameer B Shah, Ana P Valencia, Martin F Schneider, Erick O Hernández-Ochoa, Joseph P Stains, Silvia S Blemker, Richard M Lovering

Open access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. AAVcc47-The Yale journal of biology and medicine · 2026
    Article
  4. Article
  5. Twisting Paths: The Paradox of Fiber Branching in Muscle Regeneration.International journal of molecular sciences · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Dystrophin myonuclear domain restoration governs treatment efficacy in dystrophic muscle.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  10. Detyrosinated microtubule arrays drive myofibrillar malformations inFrontiers in cell and developmental biology · 2023
    Article
  11. Nuclear movement in multinucleated cells.Development (Cambridge, England) · 2022
    Review
  12. Review
  13. Article
  14. Lifespan Analysis of DystrophicFrontiers in physiology · 2021
    Article
  15. Review
  16. Article
  17. Differential YAP nuclear signaling in healthy and dystrophic skeletal muscle.American journal of physiology. Cell physiology · 2019
    Article
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 1 country.

Shama R IyerDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland.
Sameer B ShahDepartments of Orthopaedic Surgery and Bioengineering, University of California San Diego, La Jolla, California.
Ana P ValenciaDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland.
Martin F SchneiderDepartment of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland.
Erick O Hernández-OchoaDepartment of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland.
Joseph P StainsDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland.
Silvia S BlemkerDepartment of Biomedical Engineering and Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia; and.
Richard M LoveringDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland; rlovering@som.umaryland.edu.ORCID http://orcid.org/0000-0002-9899-5071
University of Maryland, Baltimore · USUniversity of California San Diego · USUniversity of Virginia · US

Funding

Interdisciplinary Training Program Muscle BiologyT32AR007592 · NIAMS · UNIVERSITY OF MARYLAND BALTIMORE · PI Aikaterini Kontrogianni-Konstantopoulos · 1996 to 2026
$11.7M
Roles of voltage sensor, S100A1 and calmodulin in skeletal muscle Ca2+ signalingR37AR055099 · NIAMS · UNIVERSITY OF MARYLAND BALTIMORE · PI SCHNEIDER, MARTIN F · 2012 to 2021
$3.5M
NIAMS NIH HHS R37 AR055099NIAMS NIH HHS T32 AR007592
6 · The paper itself

Abstract

Duchenne muscular dystrophy (DMD) is a genetic disorder in which the absence of dystrophin leads to progressive muscle degeneration and weakness. Although the genetic basis is known, the pathophysiology of dystrophic skeletal muscle remains unclear. We examined nuclear movement in wild-type (WT) and muscular dystrophy mouse model for DMD (MDX) (dystrophin-null) mouse myofibers. We also examined expression of proteins in the linkers of nucleoskeleton and cytoskeleton (LINC) complex, as well as nuclear transcriptional activity via histone H3 acetylation and polyadenylate-binding nuclear protein-1. Because movement of nuclei is not only LINC dependent but also microtubule dependent, we analyzed microtubule density and organization in WT and MDX myofibers, including the application of a unique 3D tool to assess microtubule core structure. Nuclei in MDX myofibers were more mobile than in WT myofibers for both distance traveled and velocity. MDX muscle shows reduced expression and labeling intensity of nesprin-1, a LINC protein that attaches the nucleus to the microtubule and actin cytoskeleton. MDX nuclei also showed altered transcriptional activity. Previous studies established that microtubule structure at the cortex is disrupted in MDX myofibers; our analyses extend these findings by showing that microtubule structure in the core is also disrupted. In addition, we studied malformed MDX myofibers to better understand the role of altered myofiber morphology vs. microtubule architecture in the underlying susceptibility to injury seen in dystrophic muscles. We incorporated morphological and microtubule architectural concepts into a simplified finite element mathematical model of myofiber mechanics, which suggests a greater contribution of myofiber morphology than microtubule structure to muscle biomechanical performance.

Indexed as

Models, BiologicalAnimalsCell NucleusCells, CulturedComputer SimulationFemaleFinite Element AnalysisMaleMiceMice, Inbred C57BLMice, Inbred mdxMuscle Fibers, SkeletalMuscular Dystrophiesbifurcated fiberscytoskeletonmuscular dystrophy

Identifiers

PMID27979987
PMCPMC5401960
OpenAlexW2561125625

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.