Evidence map›Paper›PMID 22246880›Full record

ArticleMuscle & nerve2012

Chronic nerve compression alters Schwann cell myelin architecture in a murine model.

Ranjan Gupta, Nima Nassiri, Antony Hazel, Mary Bathen, Tahseen Mozaffar

Abstract read
In one paragraph

Article in Muscle & nerve, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Review
  2. Article
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  7. Review
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  14. Pharmacological Attenuation of Electrical Effects in a Model of Compression Neuropathy.The Journal of bone and joint surgery. American volume · 2019
    Article
  15. A novel chronic nerve compression model in the rat.Neural regeneration research · 2018
    Article
  16. Review
  17. Aortic arch compliance and idiopathic unilateral vocal fold paralysis.Journal of applied physiology (Bethesda, Md. : 1985) · 2017
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Ranjan GuptaDepartment of Orthopaedic Surgery, University of California at Irvine, 2226 Gillespie Neuroscience Research Facility, Irvine, California 92697, USA. ranjang@uci.edu
Nima Nassiri
Antony Hazel
Mary Bathen
Tahseen Mozaffar

Funding

Schwann cell regulation of chronic nerve injuryR01NS049203 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI GUPTA, RANJAN · 2004 to 2014
$3.1M
NINDS NIH HHS 2R01NS049203NINDS NIH HHS R01 NS049203
6 · The paper itself

Abstract

introductionMyelinating Schwann cells compartmentalize their outermost layer to form actin-rich channels known as Cajal bands. Herein we investigate changes in Schwann cell architecture and cytoplasmic morphology in a novel mouse model of carpal tunnel syndrome.

methodsChronic nerve compression (CNC) injury was created in wild-type and slow-Wallerian degeneration (Wld(S) ) mice. Over 12 weeks, nerves were electrodiagnostically assessed, and Schwann cell morphology was thoroughly evaluated.

resultsA decline in nerve conduction velocity and increase in g-ratio is observed without early axonal damage. Schwann cells display shortened internodal lengths and severely disrupted Cajal bands. Quite surprisingly, the latter is reconstituted without improvements to nerve conduction velocity.

conclusionsChronic entrapment injuries like carpal tunnel syndrome are primarily mediated by the Schwann cell response, where decreases in internodal length and myelin thickness disrupt the efficiency of impulse propagation. Restitution of Cajal bands is not sufficient for remyelination after CNC injury.

Indexed as

ActinsAction PotentialsAnalysis of VarianceAnimalsAxonsCarpal Tunnel SyndromeCytoskeletonDisease Models, AnimalElectromyographyIntercellular Signaling Peptides and ProteinsMaleMiceMice, Inbred C57BLMice, Neurologic MutantsMyelin SheathNerve Tissue ProteinsActinscollapsin response mediator protein-2Intercellular Signaling Peptides and ProteinsNerve Tissue ProteinsWld protein, mouse

Identifiers

PMID22246880
PMCPMC3262776

What OpenQuestion holds

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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.