Evidence map›Paper›PMID 30767057›Full record

ArticleJournal of neurology2019

Congenital myasthenic syndrome caused by novel COL13A1 mutations.

Marina Dusl, Teresa Moreno, Francina Munell, Alfons Macaya, Margarida Gratacòs, Angela Abicht, Tim M Strom, Hanns Lochmüller, Jan Senderek

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 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

9 authors at 5 institutions in 4 countries.

Marina DuslDepartment of Neurology, Friedrich-Baur-Institute, University Hospital, LMU Munich, Marchioninistrasse 17, 81377, Munich, Germany. marina.dusl@med.uni-muenchen.de.ORCID http://orcid.org/0000-0001-5182-2141
Teresa MorenoUnidade de Neuropediatria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal.
Francina MunellDepartment of Pediatric Neurology, Hospital Universitari Materno-Infantil Vall d'Hebron, Barcelona, Spain.
Alfons MacayaDepartment of Pediatric Neurology, Hospital Universitari Materno-Infantil Vall d'Hebron, Barcelona, Spain.
Margarida GratacòsDepartment of Neurophysiology, Hospital Universitari Materno-Infantil Vall d'Hebron, Barcelona, Spain.
Angela AbichtDepartment of Neurology, Friedrich-Baur-Institute, University Hospital, LMU Munich, Marchioninistrasse 17, 81377, Munich, Germany.
Tim M StromInstitute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany.
Hanns LochmüllerDepartment of Neuropediatrics and Muscle Disorders, Medical Center, University of Freiburg, Freiburg, Germany.
Jan SenderekDepartment of Neurology, Friedrich-Baur-Institute, University Hospital, LMU Munich, Marchioninistrasse 17, 81377, Munich, Germany.
Friedrich Baur Stiftung · DEHospital Materno-Infantil · ESCentro Hospitalar Lisboa Norte · PTHelmholtz Zentrum München · DEUniversity of Ottawa · CA

Funding

Fritz-Thyssen-Stiftung Az.10.15.1.021MN
6 · The paper itself

Abstract

Collagen XIII is a non-fibrillar transmembrane collagen which has been long recognized for its critical role in synaptic maturation of the neuromuscular junction. More recently, biallelic COL13A1 loss-of-function mutations were identified in three patients with congenital myasthenic syndrome (CMS), a rare inherited condition with defective neuromuscular transmission, causing abnormal fatigability and fluctuating muscle weakness and often successfully treated with acetylcholinesterase inhibitors. Here we report six additional CMS patients from three unrelated families with previously unreported homozygous COL13A1 loss-of-function mutations (p.Tyr216*, p.Glu543fs and p.Thr629fs). The phenotype of our cases was similar to the previously reported patients including respiratory distress and severe dysphagia at birth that often resolved or improved in the first days or weeks of life. All individuals had prominent eyelid ptosis with only minor ophthalmoparesis as well as generalized muscle weakness, predominantly affecting facial, bulbar, respiratory and axial muscles. Response to acetylcholinesterase inhibitor treatment was generally negative while salbutamol proved beneficial. Our data further support the causality of COL13A1 variants for CMS and suggest that this type of CMS might be clinically homogenous and requires alternative pharmacological therapy.

Indexed as

ChildCollagen Type XIIIConsanguinityDNA Mutational AnalysisFamily HealthFemaleHumansMaleMutationMyasthenic Syndromes, CongenitalReceptor, trkAYoung AdultCOL13A1 protein, humanCollagen Type XIIIReceptor, trkAAutosomal recessiveCOL13A1Collagen type XIII alpha 1 chainCongenital myasthenic syndromeNeuromuscular junction

Identifiers

PMID30767057
OpenAlexW2914757446

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.