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Genetic testing and prenatal diagnosis for a Chinese pedigree affected with Waardenburg syndrome type 4C due to heterozygous deletion of SOX10 gene / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 1367-1372, 2023.
Artigo em Chinês | WPRIM | ID: wpr-1009305
ABSTRACT
OBJECTIVE@#To explore the genetic basis for a Chinese pedigree featuring congenital profound syndromic deafness and chronic constipation, and provide prenatal diagnosis for a high-risk fetus.@*METHODS@#Whole-exome sequencing was carried out to analyze the sequences of genes associated with hereditary deafness, and multiplex ligation-dependent probe amplification (MLPA) was used to verify the candidate variant in the proband's parents and the fetus.@*RESULTS@#The proband was found to have harbored a heterozygous deletion of SOX10, a pathogenic gene associated with Waardenburg syndrome type 4C (WS4C). The same deletion was found in her mother (with profound syndromic deafness and chronic constipation) and the fetus, but not in her father with normal hearing. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG) and Association for Molecular Pathology (AMP), the SOX10 gene deletion was predicted to be a pathogenic variant (PVS1+PM2_Supporting+PP1+PP4).@*CONCLUSION@#The pedigree was diagnosed with WS4C, which has conformed to an autosomal dominant inheritance. Deletion of the entire SOX10 gene, as a loss-of-function variant, probably underlay its pathogenesis. Above finding has facilitated genetic counseling and prenatal diagnosis for this family.
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Linhagem / Diagnóstico Pré-Natal / Síndrome de Waardenburg / Testes Genéticos / Constipação Intestinal / Surdez / Fatores de Transcrição SOXE / População do Leste Asiático / Perda Auditiva Neurossensorial / Mães Limite: Feminino / Humanos / Gravidez Idioma: Chinês Revista: Chinese Journal of Medical Genetics Ano de publicação: 2023 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Linhagem / Diagnóstico Pré-Natal / Síndrome de Waardenburg / Testes Genéticos / Constipação Intestinal / Surdez / Fatores de Transcrição SOXE / População do Leste Asiático / Perda Auditiva Neurossensorial / Mães Limite: Feminino / Humanos / Gravidez Idioma: Chinês Revista: Chinese Journal of Medical Genetics Ano de publicação: 2023 Tipo de documento: Artigo