Evidence map›Paper›PMID 24656734›Full record

ArticleNeuromuscular disorders : NMD2014

Deletion of atrophy enhancing genes fails to ameliorate the phenotype in a mouse model of spinal muscular atrophy.

Chitra C Iyer, Vicki L McGovern, Dawnne O Wise, David J Glass, Arthur H M Burghes

Open access · greenAbstract read
In one paragraph

Article in Neuromuscular disorders : NMD, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

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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

5 authors at 2 institutions in 2 countries.

Chitra C IyerDepartment of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA.
Vicki L McGovernDepartment of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA.
Dawnne O WiseDepartment of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA.
David J GlassNovartis Institutes for Biomedical Research, Cambridge, MA, USA.
Arthur H M BurghesDepartment of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA; Department of Neurology, The Ohio State University, Columbus, OH, USA; Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA. Electronic address: burghes.1@osu.edu.
The Ohio State University · USNovartis (Switzerland) · CH

Funding

Therapy for Spinal Muscular AtrophyR01HD060586 · NICHD · OHIO STATE UNIVERSITY · PI BURGHES, ARTHUR H. M. · 2010 to 2021
$3.7M
NICHD NIH HHS R01 HD060586
6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is an autosomal recessive disease causing degeneration of lower motor neurons and muscle atrophy. One therapeutic avenue for SMA is targeting signaling pathways in muscle to ameliorate atrophy. Muscle Atrophy F-box, MAFbx, and Muscle RING Finger 1, MuRF1, are muscle-specific ubiquitin ligases upregulated in skeletal and cardiac muscle during atrophy. Homozygous knock-out of MAFbx or MuRF1 causes muscle sparing in adult mice subjected to atrophy by denervation. We wished to determine whether blockage of the major muscle atrophy pathways by deletion of MAFbx or MuRF1 in a mouse model of SMA would improve the phenotype. Deletion of MAFbx in the Δ7 SMA mouse model had no effect on the weight and the survival of the mice while deletion of MuRF1 was deleterious. MAFbx(-/-)-SMA mice showed a significant alteration in fiber size distribution tending towards larger fibers. In skeletal and cardiac tissue MAFbx and MuRF1 transcripts were upregulated whereas MuRF2 and MuRF3 levels were unchanged in Δ7 SMA mice. We conclude that deletion of the muscle ubiquitin ligases does not improve the phenotype of a Δ7 SMA mouse. Furthermore, it seems unlikely that the beneficial effect of HDAC inhibitors is mediated through inhibition of MAFbx and MuRF1.

Indexed as

AnimalsBody WeightDisease Models, AnimalMice, TransgenicMuscle Fibers, SkeletalMuscle ProteinsMuscle, SkeletalMuscular AtrophyMuscular Atrophy, SpinalMyocardiumPhenotypeSKP Cullin F-Box Protein LigasesSurvival AnalysisSurvival of Motor Neuron 1 ProteinTripartite Motif ProteinsUbiquitin-Protein LigasesFbxo32 protein, mouseMuscle ProteinsSKP Cullin F-Box Protein LigasesSmn1 protein, mouseSurvival of Motor Neuron 1 ProteinTrim63 protein, mouseTripartite Motif ProteinsUbiquitin-Protein LigasesMAFbx (Atrogin1)MuRF1 (Trim63)Muscle atrophy F-boxMuscle RING Finger 1Muscle ubiquitin ligasesSpinal muscular atrophy (SMA)

Identifiers

PMID24656734
PMCPMC4005840
OpenAlexW2027120092

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.