Evidence map›Paper›PMID 32709902›Full record

ArticleNature communications2020

The unified myofibrillar matrix for force generation in muscle.

T Bradley Willingham, Yuho Kim, Eric Lindberg, Christopher K E Bleck, Brian Glancy

Abstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing 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

45 citing papers in PubMed.

  1. Article
  2. Review
  3. Muscle fibre denervation in ageing.Clinical science (London, England : 1979) · 2026
    Review
  4. Cardiac myofibril networks induce shear stress.NPJ systems biology and applications · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Multiparametric quantitative magnetic resonance imaging of skeletal muscle in CKD.American journal of physiology. Renal physiology · 2025
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Exercise metabolism and adaptation in skeletal muscle.Nature reviews. Molecular cell biology · 2023
    Review
  19. Review
  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

5 authors.

T Bradley WillinghamNational Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Yuho KimNational Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.ORCID http://orcid.org/0000-0001-6038-4358
Eric LindbergNational Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Christopher K E BleckNational Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.ORCID http://orcid.org/0000-0003-1029-3444
Brian GlancyNational Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA. brian.glancy@nih.gov.ORCID http://orcid.org/0000-0002-8571-244X

Funding

Development and Regulation of the Muscle Mitochondrial ReticulumZIAHL006221 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI GLANCY, BRIAN · 2017 to 2025
$14.7M
Intramural NIH HHS ZIA HL006221
6 · The paper itself

Abstract

Human movement occurs through contraction of the basic unit of the muscle cell, the sarcomere. Sarcomeres have long been considered to be arranged end-to-end in series along the length of the muscle into tube-like myofibrils with many individual, parallel myofibrils comprising the bulk of the muscle cell volume. Here, we demonstrate that striated muscle cells form a continuous myofibrillar matrix linked together by frequently branching sarcomeres. We find that all muscle cells contain highly connected myofibrillar networks though the frequency of sarcomere branching goes down from early to late postnatal development and is higher in slow-twitch than fast-twitch mature muscles. Moreover, we show that the myofibrillar matrix is united across the entire width of the muscle cell both at birth and in mature muscle. We propose that striated muscle force is generated by a singular, mesh-like myofibrillar network rather than many individual, parallel myofibrils.

Indexed as

Mechanical PhenomenaAnimalsFemaleHumansMaleMiceMice, Inbred C57BLMicroscopy, ElectronMuscle ContractionMuscle DevelopmentMuscle, SkeletalMyofibrilsSarcomeres

Identifiers

PMID32709902
PMCPMC7381600

What OpenQuestion holds

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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.