Evidence map›Paper›PMID 16874452›Full record

ReviewJournal of muscle research and cell motility2006

Dysregulation of sodium channel gating in critical illness myopathy.

James W Teener, Mark M Rich

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of muscle research and cell motility, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Muscle regeneration after sepsis.Critical care (London, England) · 2016
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Sepsis-induced myopathy.Critical care medicine · 2009
    Review
  13. Review
  14. Article
  15. Treatment of neuromuscular channelopathies: current concepts and future prospects.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2008
    Review
  16. Review
  17. Article
  18. 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.

James W TeenerDepartment of Neurology, University of Michigan Health Systems, Ann Arbor, MI 48109, USA.
Mark M Rich

Funding

Loss of muscle excitability in acute quadriplegic myopathyR01NS040826 · NINDS · WRIGHT STATE UNIVERSITY · PI RICH, MARK M · 2001 to 2009
$2.4M
NINDS NIH HHS NS040826
6 · The paper itself

Abstract

Critical illness myopathy (CIM) is the most common caused of acquired weakness in critically ill patients. While atrophy of muscle fibers causes weakness, the primary cause of acute weakness is loss of muscle excitability. Studies in an animal model of CIM suggest that both depolarization of the resting potential and a hyperpolarized shift in the voltage dependence of sodium channel gating combine to cause inexcitability. In active adult skeletal muscle the only sodium channel isoform expressed is Nav1.4. In the animal model of CIM the Nav1.5 sodium channel isoform is upregulated, but the majority of sodium current is still carried by Nav1.4 sodium channels. Experiments using toxins to selectively bock the Nav1.4 isoform demonstrated that the cause of the hyperpolarized shift in sodium channel inactivation is a hyperpolarized shift in inactivation of the Nav1.4 isoform. These data suggest that CIM represents a new type of ion channel disease in which altered gating of sodium channels is due to improper regulation of the channels rather than mutation of channels or changes in isoform expression. The hypothesis that dysregulation of sodium channel gating underlies inexcitability of skeletal muscle in CIM raises the possibility that there maybe dysregulation of sodium channel gating in other tissues in critically ill patients. We propose that there is a syndrome of reduced electrical excitability in critically ill patients that affects skeletal muscle, peripheral nerve, the heart and central nervous system. This syndrome manifests as CIM, critical illness polyneuropathy, reduced cardiac contractility and septic encephalopathy.

Indexed as

Action PotentialsCritical IllnessAnimalsHumansIon Channel GatingMusclesMuscular DiseasesRepressor ProteinsSepsisSodium ChannelsNAB1 protein, humanRepressor ProteinsSodium Channels

Identifiers

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.