Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient

Abstract Here, we report the case of a 29-year-old male with classic Pelizaeus-Merzbacher disease (PMD) harboring the PLP1 variant NM_000533.5:c.62 C > T, leading to an NP_000524.3:p.(Ala21Val) alteration in the first transmembrane domain of the protein. He presented with developmental delays, ny...

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Main Authors: Pedro Manzke, Pedro Renato P. Brandão, Talita Balieiro, Diógenes Diego de Carvalho Bispo, Maria Joana Osório, Gustavo Barcelos Barra
Format: Article
Language:English
Published: Nature Publishing Group 2025-01-01
Series:Human Genome Variation
Online Access:https://doi.org/10.1038/s41439-024-00306-8
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author Pedro Manzke
Pedro Renato P. Brandão
Talita Balieiro
Diógenes Diego de Carvalho Bispo
Maria Joana Osório
Gustavo Barcelos Barra
author_facet Pedro Manzke
Pedro Renato P. Brandão
Talita Balieiro
Diógenes Diego de Carvalho Bispo
Maria Joana Osório
Gustavo Barcelos Barra
author_sort Pedro Manzke
collection DOAJ
description Abstract Here, we report the case of a 29-year-old male with classic Pelizaeus-Merzbacher disease (PMD) harboring the PLP1 variant NM_000533.5:c.62 C > T, leading to an NP_000524.3:p.(Ala21Val) alteration in the first transmembrane domain of the protein. He presented with developmental delays, nystagmus, spastic paraparesis, optic atrophy, dysphagia, appendicular ataxia, and progressive head tremor. Brain MRI revealed hypomyelination, diffuse white matter hyperintensity, and atrophy of the corpus callosum and cerebellum, expanding the known clinical spectrum of PMD.
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publishDate 2025-01-01
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series Human Genome Variation
spelling doaj-art-9c2c8f2bcb2343fb962bab41fdac5b2f2025-01-12T12:13:22ZengNature Publishing GroupHuman Genome Variation2054-345X2025-01-011211310.1038/s41439-024-00306-8Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patientPedro Manzke0Pedro Renato P. Brandão1Talita Balieiro2Diógenes Diego de Carvalho Bispo3Maria Joana Osório4Gustavo Barcelos Barra5Department of Neurology, Movement Disorders Clinic, Instituto Hospital de Base (IHB)Neuroscience and Behavior Lab, University of Brasília (UnB)Department of Neurology, Movement Disorders Clinic, Instituto Hospital de Base (IHB)Brasilia University Hospital, University of Brasilia (UnB)Center for Translational Neuromedicine, University of Rochester Medical CenterSabin Diagnóstico e SaúdeAbstract Here, we report the case of a 29-year-old male with classic Pelizaeus-Merzbacher disease (PMD) harboring the PLP1 variant NM_000533.5:c.62 C > T, leading to an NP_000524.3:p.(Ala21Val) alteration in the first transmembrane domain of the protein. He presented with developmental delays, nystagmus, spastic paraparesis, optic atrophy, dysphagia, appendicular ataxia, and progressive head tremor. Brain MRI revealed hypomyelination, diffuse white matter hyperintensity, and atrophy of the corpus callosum and cerebellum, expanding the known clinical spectrum of PMD.https://doi.org/10.1038/s41439-024-00306-8
spellingShingle Pedro Manzke
Pedro Renato P. Brandão
Talita Balieiro
Diógenes Diego de Carvalho Bispo
Maria Joana Osório
Gustavo Barcelos Barra
Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
Human Genome Variation
title Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
title_full Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
title_fullStr Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
title_full_unstemmed Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
title_short Clinical characteristics of the Ala21Val variant in the myelin proteolipid protein 1 (PLP1) gene associated with Pelizaeus-Merzbacher disease in a Brazilian male patient
title_sort clinical characteristics of the ala21val variant in the myelin proteolipid protein 1 plp1 gene associated with pelizaeus merzbacher disease in a brazilian male patient
url https://doi.org/10.1038/s41439-024-00306-8
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