Evidence map›Paper›PMID 7521794›Full record

ArticleCell and tissue research1994

Morphological changes during fiber type transitions in low-frequency-stimulated rat fast-twitch muscle.

M D Delp, D Pette

Abstract read
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In one paragraph

Article in Cell and tissue research, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Excitation-transcription coupling in skeletal muscle: the molecular pathways of exercise.Biological reviews of the Cambridge Philosophical Society · 2011
    Review
  6. Article
  7. Article
  8. Acute molecular response of mouse hindlimb muscles to chronic stimulation.American journal of physiology. Cell physiology · 2009
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. A swimming robot actuated by living muscle tissue.Journal of neuroengineering and rehabilitation · 2004
    Article
  15. Activity-dependent plasticity of transmitter release from nerve terminals in rat fast and slow muscles.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2003
    Article
  16. Article
  17. Article
  18. Article
  19. 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

2 authors.

M D DelpFakultät für Biologie, Universität Konstanz, Germany.
D Pette

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigates morphological adaptations of rat extensor digitorum longus muscle to chronic low-frequency stimulation (10 Hz, 10 h/d, up to 61 +/- 7d). During the early stimulation period (2-4 d), increased basophilia and accumulation of RNA were seen predominantly in type-IIB fibers. Putative satellite cell activation, as indicated by 3H-thymidine incorporation, was also evident during this phase. By 12 d, fiber composition remained unaltered, but there was a decrease in the cross-sectional area of the type-IIB fibers. Following 28 d of low-frequency stimulation, the percentage of type-IIB fibers decreased from 43 +/- 3% to 0%, while type-IID fibers increased from 30 +/- 3% to 60 +/- 6%. The fraction of type-IIA fibers tended to increase (controls 19 +/- 3%; stimulated 29 +/- 4%), whereas that of the type-I fibers was unaltered (4 +/- 1%). At this time, the cross-sectional area of type-IID fibers was unaltered, but that of type-IIA and type-I fibers increased. Further stimulation resulted in a return of type-IID fibers to control levels (23 +/- 5%), and a marked increase in type-IIA fibers (45 +/- 8%). The percentage of type-I fibers increased from 4 +/- 1% to 8 +/- 1%. Throughout each stage of chronic stimulation, there was no histological evidence of fiber degeneration and regeneration. These results indicate that, in contrast to the rabbit, chronic low-frequency stimulation-induced fiber conversion in the rat extensor digitorum longus muscle is entirely due to fiber transformation.

Indexed as

Adaptation, PhysiologicalAnimalsDNA ReplicationElectric StimulationGlucosephosphate DehydrogenaseHistocytochemistryMaleMusclesMyosinsNADH Tetrazolium ReductaseRatsRats, WistarRNATime FactorsGlucosephosphate DehydrogenaseMyosinsNADH Tetrazolium ReductaseRNA

Identifiers

PMID7521794

What OpenQuestion holds

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Registered trials

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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.