Evidence map›Paper›PMID 11606634›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2001

Sodium channel mRNAs at the neuromuscular junction: distinct patterns of accumulation and effects of muscle activity.

S S Awad, R N Lightowlers, C Young, Z M Chrzanowska-Lightowlers, T Lomo, C R Slater

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

17 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. MuSK Regulates Neuromuscular Junction Nav1.4 Localization and Excitability.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Article
  7. Review
  8. Skeletal muscle: A review of molecular structure and function, in health and disease.Wiley interdisciplinary reviews. Systems biology and medicine · 2020
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. The denervated muscle: facts and hypotheses. A historical review.European journal of applied physiology · 2006
    Review
  14. 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
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

6 authors at 2 institutions in 2 countries.

S S AwadDepartment of Neuroscience, University of Newcastle upon Tyne, NE2 4HH, Newcastle upon Tyne, United Kingdom. s.s.awad@ncl.ac.uk
R N Lightowlers
C Young
Z M Chrzanowska-Lightowlers
T Lomo
C R Slater
Newcastle University · GBUniversity of Oslo · NO

Funding

Wellcome Trust
6 · The paper itself

Abstract

Voltage-gated sodium channels (VGSCs) are highly concentrated at the neuromuscular junction (NMJ) in mammalian skeletal muscle. Here we test the hypothesis that local upregulation of mRNA contributes to this accumulation. We designed radiolabeled antisense RNA probes, specific for the "adult" Na(V)1.4 and "fetal" Na(V)1.5 isoforms of VGSC in mammalian skeletal muscle, and used them in in situ hybridization studies of rat soleus muscles. Na(V)1.4 mRNA is present throughout normal adult muscles but is highly concentrated at the NMJ, in which the amount per myonucleus is more than eightfold greater than away from the NMJ. Na(V)1.5 mRNA is undetectable in innervated muscles but is dramatically upregulated by denervation. In muscles denervated for 1 week, both Na(V)1.4 and Na(V)1.5 mRNAs are present throughout the muscle, and both are concentrated at the NMJ. No Na(V)1.5 mRNA was detectable in denervated muscles stimulated electrically for 1 week in vivo. Neither denervation nor stimulation had any significant effect on the level or distribution of Na(V)1.4 mRNA. We conclude that factors, probably derived from the nerve, lead to the increased concentration of VGSC mRNAs at the NMJ. In addition, the expression of Na(V)1.5 mRNA is downregulated by muscle activity, both at the NMJ and away from it.

Indexed as

AnimalsAutoradiographyElectric StimulationFemaleIn Situ HybridizationMuscle ContractionMuscle DenervationMuscle, SkeletalNeuromuscular JunctionOligoribonucleotides, AntisensePolymerase Chain ReactionProtein IsoformsRatsRats, WistarRNA, MessengerSodium ChannelsOligoribonucleotides, AntisenseProtein IsoformsRNA, MessengerSodium Channels

Identifiers

PMID11606634
PMCPMC6762790
OpenAlexW1545220665

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.