Evidence map›Paper›PMID 11425874›Full record

ArticleThe Journal of cell biology2001

Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo.

G Bezakova, J P Helm, M Francolini, T Lømo

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.9field-weighted citation impact, top 32% 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

24 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
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  9. Review
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  12. Soluble miniagrin enhances contractile function of engineered skeletal muscle.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2012
    Article
  13. Article
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  15. Review
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  19. Synapse loss in cortex of agrin-deficient mice after genetic rescue of perinatal death.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

G BezakovaDepartment of Physiology, University of Oslo, 0317 Oslo, Norway. gabriela.bezakova@unibas.ch
J P Helm
M Francolini
T Lømo
University of Oslo · NOUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggregation of acetylcholine receptors (AChRs) in muscle fibers by nerve-derived agrin plays a key role in the formation of neuromuscular junctions. So far, the effects of agrin on muscle fibers have been studied in culture systems, transgenic animals, and in animals injected with agrin--cDNA constructs. We have applied purified recombinant chick neural and muscle agrin to rat soleus muscle in vivo and obtained the following results. Both neural and muscle agrin bind uniformly to the surface of innervated and denervated muscle fibers along their entire length. Neural agrin causes a dose-dependent appearance of AChR aggregates, which persist > or = 7 wk after a single application. Muscle agrin does not cluster AChRs and at 10 times the concentration of neural agrin does not reduce binding or AChR-aggregating activity of neural agrin. Electrical muscle activity affects the stability of agrin binding and the number, size, and spatial distribution of the neural agrin--induced AChR aggregates. Injected agrin is recovered from the muscles together with laminin and both proteins coimmunoprecipitate, indicating that agrin binds to laminin in vivo. Thus, the present approach provides a novel, simple, and efficient method for studying the effects of agrin on muscle under controlled conditions in vivo.

Indexed as

AgrinAnimalsCell LineChickensDose-Response Relationship, DrugElectric StimulationHumansInjections, IntramuscularLamininMuscle DenervationMuscle Fibers, SkeletalMuscle, SkeletalPrecipitin TestsProtein BindingProtein IsoformsRatsAgrinLamininProtein IsoformsReceptors, CholinergicRecombinant Proteins

Identifiers

PMID11425874
PMCPMC2150725
OpenAlexW2081532398

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.