Evidence map›Paper›PMID 19095965›Full record

ArticleThe American journal of pathology2009

Muscleblind-like proteins: similarities and differences in normal and myotonic dystrophy muscle.

Ian Holt, Virginie Jacquemin, Majid Fardaei, Caroline A Sewry, Gillian S Butler-Browne, Denis Furling, J David Brook, Glenn E Morris

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
1.6field-weighted citation impact, top 21% 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

48 citing papers in PubMed, 73 citations in OpenAlex.

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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Ian HoltWolfson Centre for Inherited Neuromuscular Disease, RJAH Orthopaedic Hospital, Oswestry, Shropshire, United Kingdom.
Virginie Jacquemin
Majid Fardaei
Caroline A Sewry
Gillian S Butler-Browne
Denis Furling
J David Brook
Glenn E Morris
Robert Jones and Agnes Hunt Orthopaedic Hospital · GBSorbonne Université · FRUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In myotonic dystrophy, muscleblind-like protein 1 (MBNL1) protein binds specifically to expanded CUG or CCUG repeats, which accumulate as discrete nuclear foci, and this is thought to prevent its function in the regulation of alternative splicing of pre-mRNAs. There is strong evidence for the role of the MBNL1 gene in disease pathology, but the roles of two related genes, MBNL2 and MBNL3, are less clear. Using new monoclonal antibodies specific for each of the three gene products, we found that MBNL2 decreased during human fetal development and myoblast culture, while MBNL1 was unchanged. In Duchenne muscular dystrophy muscle, MBNL2 was elevated in immature, regenerating fibres compared with mature fibres, supporting some developmental role for MBNL2. MBNL3 was found only in C2C12 mouse myoblasts. Both MBNL1 and MBNL2 were partially sequestered by nuclear foci of expanded repeats in adult muscle and cultured cells from myotonic dystrophy patients. In adult muscle nucleoplasm, both proteins were reduced in myotonic dystrophy type 1 compared with an age-matched control. In normal human myoblast cultures, MBNL1 and MBNL2 always co-distributed but their distribution could change rapidly from nucleoplasmic to cytoplasmic. Functional differences between MBNL1 and MBNL2 have not yet been found and may prove quite subtle. The dominance of MBNL1 in mature, striated muscle would explain why ablation of the mouse mbnl1 gene alone is sufficient to cause a myotonic dystrophy.

Indexed as

Antibodies, MonoclonalAntibody SpecificityBlotting, WesternCell Culture TechniquesCell DifferentiationCell NucleusCells, CulturedCytoplasmElectrophoresis, Polyacrylamide GelFetusGene Expression Regulation, DevelopmentalHumansImmunohistochemistryIn Situ HybridizationMaleMiddle AgedAntibodies, MonoclonalMBNL1 protein, humanMBNL2 protein, humanMBNL3 protein, humanRNA-Binding ProteinsRNA, Small Interfering

Identifiers

PMID19095965
PMCPMC2631334
OpenAlexW1487469295

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.