Evidence map›Paper›PMID 30370671›Full record

ArticleMuscle & nerve2019

Muscle contractility dysfunction precedes loss of motor unit connectivity in SOD1(G93A) mice.

Christopher G Wier, Alexander E Crum, Anthony B Reynolds, Chitra C Iyer, Deepti Chugh, Marilly S Palettas, Patrick L Heilman, David M Kline, W David Arnold, Stephen J Kolb

Open access · greenAbstract read
In one paragraph

Article in Muscle & nerve, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. CORP: In vivo muscle strength-perspectives on the design and interpretation of preclinical animal studies.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
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  8. Boosting the peripheral immune response in the skeletal muscles improved motor function in ALS transgenic mice.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Christopher G WierDepartment of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
Alexander E CrumDepartment of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.
Anthony B ReynoldsDepartment of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
Chitra C IyerDepartment of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.
Deepti ChughDepartment of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.
Marilly S PalettasCenter for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA.
Patrick L HeilmanDepartment of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.
David M KlineCenter for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA.
W David ArnoldDepartment of Neurology, Division of Neuromuscular Medicine, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, Ohio, 43210, USA.
Stephen J KolbDepartment of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
The Ohio State University Wexner Medical Center · USThe Ohio State University · US

Funding

Ohio State University Neuroscience Center Core-Core EP30NS104177 · NINDS · OHIO STATE UNIVERSITY · PI BROWN, ANTHONY · 2017 to 2020
$1.9M
Sarcopenia and the motor neuronR03AG050877 · NIA · OHIO STATE UNIVERSITY · PI ARNOLD, WILLIAM DAVID · 2016 to 2017
$231k
National Institutes of Health National Institute on Aging R03AG050877Neurological Research Institute at The Ohio State University Wexner Medical CenterNIA NIH HHS R03 AG050877
6 · The paper itself

Abstract

introductionElectrophysiological measurements are used in longitudinal clinical studies to provide insight into the progression of amyotrophic lateral sclerosis (ALS) and the relationship between muscle weakness and motor unit (MU) degeneration. Here, we used a similar longitudinal approach in the Cu/Zn superoxide dismutase (SOD1[G93A]) mouse model of ALS.

methodsIn vivo muscle contractility and MU connectivity assays were assessed longitudinally in SOD1(G93A) and wild type mice from postnatal days 35 to 119.

resultsIn SOD1(G93A) males, muscle contractility was reduced by day 35 and preceded MU loss. Muscle contractility and motor unit reduction were delayed in SOD1(G93A) females compared with males, but, just as with males, muscle contractility reduction preceded MU loss. DISCUSSION: The longitudinal contractility and connectivity paradigm employed here provides additional insight into the SOD1(G93A) mouse model and suggests that loss of muscle contractility is an early finding that may precede loss of MUs and motor neuron death. Muscle Nerve 59:254-262, 2019.

Indexed as

Action PotentialsAge FactorsAmyotrophic Lateral SclerosisAnimalsDisease Models, AnimalDisease ProgressionFemaleLongitudinal StudiesMaleMiceMice, Inbred C57BLMice, TransgenicMotor NeuronsMuscle ContractionMuscle, SkeletalMuscular DiseasesSOD1 G93A proteinSuperoxide DismutaseALSconnectivitycontractilityelectrophysiologymotor unit

Identifiers

PMID30370671
PMCPMC6340745
OpenAlexW2899225070

What OpenQuestion holds

Textmetadata
LicenceTDM
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.