Evidence map›Paper›PMID 18171728›Full record

ArticleMolecular pharmacology2008

Enhanced excitation-coupled calcium entry in myotubes expressing malignant hyperthermia mutation R163C is attenuated by dantrolene.

Gennady Cherednichenko, Chris W Ward, Wei Feng, Elaine Cabrales, Luke Michaelson, Montserrat Samso, José R López, Paul D Allen, Isaac N Pessah

Abstract read
In one paragraph

Article in Molecular pharmacology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

71 citing papers in PubMed, 106 citations in OpenAlex.

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  19. Review
  20. A focus on extracellular CaExperimental & molecular medicine · 2017
    Review

11 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Gennady CherednichenkoDepartment of Molecular Biosciences, School of Veterinary Medicine, One Shields Avenue, University of California, Davis, CA 95616, USA.
Chris W Ward
Wei Feng
Elaine Cabrales
Luke Michaelson
Montserrat Samso
José R López
Paul D Allen
Isaac N Pessah
Harvard University Press · USUniversity of California, Davis · USUniversity of Maryland, Baltimore · US

Funding

Uncovering the Molecular Basis of Malignant HyperthermiaP01AR052354 · NIAMS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI FRANZINI-ARMSTRONG, CLARA · 2006 to 2016
$13.4M
Structure Function Studies of RyR1 in a Myogenic KnockoutR01AR043140 · NIAMS · CHILDREN'S HOSPITAL BOSTON · PI ALLEN, PAUL D · 1996 to 2010
$4.8M
Local Calcium Signalling: Implications in FatigueR03AR053318 · NIAMS · UNIVERSITY OF MARYLAND BALTIMORE · PI WARD, CHRISTOPHER WILLIAM · 2006 to 2008
$217k
NIAMS NIH HHS P01 AR052354NIAMS NIH HHS P01-AR52354NIAMS NIH HHS R01 AR043140NIAMS NIH HHS R01-AR43140NIAMS NIH HHS R03 AR053318NIAMS NIH HHS R03-AR053318
6 · The paper itself

Abstract

Dantrolene is the drug of choice for the treatment of malignant hyperthermia (MH) and is also useful for treatment of spasticity or muscle spasms associated with several clinical conditions. The current study examines the mechanisms of dantrolene's action on skeletal muscle and shows that one of dantrolene's mechanisms of action is to block excitation-coupled calcium entry (ECCE) in both adult mouse flexor digitorum brevis fibers and primary myotubes. A second important new finding is that myotubes isolated from mice heterozygous and homozygous for the ryanodine receptor type 1 R163C MH susceptibility mutation show significantly enhanced ECCE rates that could be restored to those measured in wild-type cells after exposure to clinical concentrations of dantrolene. We propose that this gain of ECCE function is an important etiological component of MH susceptibility and possibly contributes to the fulminant MH episode. The inhibitory potency of dantrolene on ECCE found in wild-type and MH-susceptible muscle is consistent with the drug's clinical potency for reversing the MH syndrome and is incomplete as predicted by its efficacy as a muscle relaxant.

Indexed as

Amino Acid SubstitutionAnimalsAnimals, NewbornArginineCalciumCalcium SignalingCysteineDantroleneHumansIon Channel GatingMalignant HyperthermiaMembrane PotentialsMembranes, ArtificialMiceMice, Inbred C57BLMuscle Fibers, SkeletalArginineCalciumCysteineDantroleneMembranes, ArtificialMuscle Relaxants, CentralMutant ProteinsPotassium ChlorideRyanodine Receptor Calcium Release Channel

Identifiers

PMID18171728
PMCPMC2735873
OpenAlexW2087040379

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.