Evidence map›Paper›PMID 34562060›Full record

ArticleMolecular genetics & genomic medicine2021

HINT1 founder mutation causing axonal neuropathy with neuromyotonia in South America: A case report.

Bianca de Aguiar Coelho Silva Madeiro, Kristien Peeters, Elker Lene Santos de Lima, Silvia Amor-Barris, Els De Vriendt, Albena Jordanova, Maria Tereza Cartaxo Muniz, Carolina da Cunha Correia

Open access · goldAbstract readCase Reports
In one paragraph

Article in Molecular genetics & genomic medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

5 citing papers in PubMed, 9 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

8 authors at 2 institutions in 2 countries.

Bianca de Aguiar Coelho Silva MadeiroOswaldo Cruz University Hospital, Universidade de Pernambuco, Recife, Brazil.ORCID 0000-0002-0138-8209
Kristien PeetersVIB-UAntwerp Center for Molecular Neurology, Antwerp, Belgium.ORCID 0000-0003-2202-3038
Elker Lene Santos de LimaOswaldo Cruz University Hospital, Universidade de Pernambuco, Recife, Brazil.ORCID 0000-0002-7171-7418
Silvia Amor-BarrisVIB-UAntwerp Center for Molecular Neurology, Antwerp, Belgium.ORCID 0000-0001-9379-0563
Els De VriendtVIB-UAntwerp Center for Molecular Neurology, Antwerp, Belgium.
Albena JordanovaVIB-UAntwerp Center for Molecular Neurology, Antwerp, Belgium.
Maria Tereza Cartaxo MunizOswaldo Cruz University Hospital, Universidade de Pernambuco, Recife, Brazil.
Carolina da Cunha CorreiaOswaldo Cruz University Hospital, Universidade de Pernambuco, Recife, Brazil.
Hospital Universitário Oswaldo Cruz · BRVIB-UAntwerp Center for Molecular Neurology · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecessive loss-of-function mutations in HINT1 are associated with predominantly motor axonal peripheral neuropathy with neuromyotonia. Twenty-four distinct pathogenic variants are reported all over the world, including four confirmed founder variations in Europe and Asia. The majority of patients carry the ancient Slavic founder variant c.110G>C (p.Arg37Pro) that shows a distribution gradient from east to west throughout Europe.

methodsWe report a case of HINT1 neuropathy in South America, identified by massive parallel sequencing of a neuropathy gene panel. To investigate the origin of the variant, we performed haplotyping analysis.

resultsA Brazilian adolescent presented with recessive axonal motor neuropathy with asymmetric onset and fasciculations. Neuromyotonia was found on needle electromyography. His parents were not consanguineous and had no European ancestry. The patient carried biallelic pathogenic p.Arg37Pro alterations in the first exon of HINT1. Both alleles were identical by descent and originated from the same ancestral founder allele as reported in Europe.

conclusionOur findings expand the geographic distribution of HINT1 neuropathy to South America, where we describe a recognized founder variant in a Brazilian adolescent with no apparent European ancestry. We confirm the association of the hallmark sign of neuromyotonia with the disease.

Indexed as

Founder EffectMutationAdolescentAllelesAmino Acid SubstitutionBrazilFemaleGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeHaplotypesHumansIsaacs SyndromeNerve Tissue ProteinsPeripheral Nervous System DiseasesSouth AmericaHINT1 protein, humanNerve Tissue ProteinsCharcot-Marie-Tooth diseasefounder effectHINT1inherited peripheral neuropathyneuromyotonia

Identifiers

PMID34562060
PMCPMC8580089
OpenAlexW3199800928

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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.