Evidence map›Paper›PMID 32914449›Full record

ArticleMuscle & nerve2020

Cardiomyopathy in limb girdle muscular dystrophy R9, FKRP related.

Eric M Libell, Julia A Richardson, Katie L Lutz, Benton Y Ng, Shelley R H Mockler, Katie M Laubscher, Carrie M Stephan, Bridget M Zimmerman, Erik R Edens, Benjamin E Reinking and 1 more

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Muscle & nerve, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00313677 (Clinical Trial Readiness for the Dystroglycanopathies), which is not on this map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 12% 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.

NCT00313677 recruitingnot on this map

Clinical Trial Readiness for the Dystroglycanopathies

TypeobservationalSponsorKatherine MathewsRan2006 to 2030Enrolled190ConditionsMuscular Dystrophy
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Article
  8. Observational
  9. Article
  10. Review
  11. Molecular Study of the Fukutin-Related Protein (International journal of molecular sciences · 2024
    Article
  12. Matriglycan maintains t-tubule structural integrity in cardiac muscle.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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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

11 authors at 3 institutions in 1 country.

Eric M LibellDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.ORCID 0000-0001-5557-3429
Julia A RichardsonDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Katie L LutzDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Benton Y NgDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Shelley R H MocklerCenter for Disabilities and Development, University of Iowa Stead Family Children's Hospital, Iowa City, Iowa, USA.
Katie M LaubscherCenter for Disabilities and Development, University of Iowa Stead Family Children's Hospital, Iowa City, Iowa, USA.
Carrie M StephanDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Bridget M ZimmermanDepartment of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa, USA.
Erik R EdensChildren's Heart Center, Children's Minnesota, Minneapolis, Minnesota, USA.
Benjamin E ReinkingDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Katherine D MathewsDepartment of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
University of Iowa · USUniversity of Iowa Stead Family Children’s Hospital · USChildren's Minnesota · US

Funding

Therapeutic Potential of ESC-Derived Myogenic PrecursorsU54NS053672 · NINDS · UNIVERSITY OF IOWA · PI CAMPBELL, KEVIN P. · 2005 to 2019
$22.0M
Muscular Dystrophy Specialized Research Center: Project 2P50NS053672 · NINDS · UNIVERSITY OF IOWA · PI KEVIN P. CAMPBELL · 2020 to 2026
$11.9M
NINDS NIH HHS P50 NS053672NINDS NIH HHS U54 NS053672
6 · The paper itself

Abstract

introductionReported frequencies of cardiomyopathy in limb girdle muscular dystrophy R9 (LGMDR9) vary. We describe the frequency and age at onset of cardiomyopathy in an LDMDR9 cohort.

methodsEchocardiograms from 56 subjects (157 echocardiograms) with LGMDR9 were retrospectively reviewed. The cumulative probability of having an abnormal echocardiogram as a function of age was assessed by survival analysis for interval-censored data by genotype. Correlations between cardiac and clinical function were evaluated.

resultsTwenty-five (45%) participants had cardiomyopathy. The median age at first abnormal echocardiogram for subjects homozygous for the c.826C>A variant was 54.2 y compared to 18.1 y for all other fukutin-related protein (FKRP) genotypes (P < .0001). There was a weak correlation between ejection fraction and 10-Meter Walk Test speed (r = 0.25), but no correlation with forced vital capacity (r = 0.08). DISCUSSION: Cardiomyopathy is prevalent among those with LGMDR9 and occurs later in subjects homozygous for the c.826C>A mutation. These data will help to guide surveillance and management.

Indexed as

AdolescentAdultAge of OnsetCardiomyopathiesFemaleGenotypeHumansMaleMiddle AgedMuscular Dystrophies, Limb-GirdlePentosyltransferasesRetrospective StudiesSurvival AnalysisFKRP protein, humanPentosyltransferasesAll neuromuscular diseasecardiomyopathydystroglycanopathyFKRPlimb-girdle muscular dystrophymuscular dystrophy

Identifiers

PMID32914449
PMCPMC7693230
OpenAlexW3085425207

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Registered trials

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.