Evidence map›Paper›PMID 25931053›Full record

ArticleActa neuropathologica2015

Zebrafish models for nemaline myopathy reveal a spectrum of nemaline bodies contributing to reduced muscle function.

Tamar E Sztal, Mo Zhao, Caitlin Williams, Viola Oorschot, Adam C Parslow, Aminah Giousoh, Michaela Yuen, Thomas E Hall, Adam Costin, Georg Ramm and 8 more

Open access · hybridAbstract read
In one paragraph

Article in Acta neuropathologica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

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  19. Zebrafish Models ofFrontiers in molecular neuroscience · 2020
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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

18 authors at 8 institutions in 2 countries.

Tamar E SztalSchool of Biological Sciences, Monash University, Melbourne, VIC, Australia.
Mo Zhao
Caitlin Williams
Viola Oorschot
Adam C Parslow
Aminah Giousoh
Michaela Yuen
Thomas E Hall
Adam Costin
Georg Ramm
Phillip I Bird
Elisabeth M Busch-Nentwich
Derek L Stemple
Peter D Currie
Sandra T Cooper
Nigel G Laing
Kristen J Nowak
Robert J Bryson-Richardson
Monash University · AUWellcome Sanger Institute · GBAustralian Regenerative Medicine Institute · AUChildren's Hospital at Westmead · AUHarry Perkins Institute of Medical Research · AUUniversity of Queensland · AUUniversity of Sydney · AUUniversity of Western Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nemaline myopathy is characterized by muscle weakness and the presence of rod-like (nemaline) bodies. The genetic etiology of nemaline myopathy is becoming increasingly understood with mutations in ten genes now known to cause the disease. Despite this, the mechanism by which skeletal muscle weakness occurs remains elusive, with previous studies showing no correlation between the frequency of nemaline bodies and disease severity. To investigate the formation of nemaline bodies and their role in pathogenesis, we generated overexpression and loss-of-function zebrafish models for skeletal muscle α-actin (ACTA1) and nebulin (NEB). We identify three distinct types of nemaline bodies and visualize their formation in vivo, demonstrating these nemaline bodies not only exhibit different subcellular origins, but also have distinct pathological consequences within the skeletal muscle. One subtype is highly dynamic and upon breakdown leads to the accumulation of cytoplasmic actin contributing to muscle weakness. Examination of a Neb-deficient model suggests this mechanism may be common in nemaline myopathy. Another subtype results from a reduction of actin and forms a more stable cytoplasmic body. In contrast, the final type originates at the Z-disk and is associated with myofibrillar disorganization. Analysis of zebrafish and muscle biopsies from ACTA1 nemaline myopathy patients demonstrates that nemaline bodies also possess a different protein signature. In addition, we show that the ACTA1(D286G) mutation causes impaired actin incorporation and localization in the sarcomere. Together these data provide a novel examination of nemaline body origins and dynamics in vivo and identifies pathological changes that correlate with muscle weakness.

Indexed as

ActininActinsAnimalsAnimals, Genetically ModifiedCytoplasmDisease Models, AnimalGene Knockdown TechniquesGreen Fluorescent ProteinsMorpholinosMuscle ProteinsMuscle, SkeletalMuscle WeaknessMutationMyopathies, NemalinePhenotypeSarcomeresActininActinsenhanced green fluorescent proteinGreen Fluorescent ProteinsMorpholinosMuscle Proteinsneb protein, zebrafishZebrafish Proteins

Identifiers

PMID25931053
PMCPMC4541704
OpenAlexW2111475298

What OpenQuestion holds

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LicenceCC BY
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.