Clinical and genetic analysis of a Chinese pedigree affected with benign familial neonatal convulsion / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
; (6): 198-201, 2022.
Article
em Zh
| WPRIM
| ID: wpr-928388
Biblioteca responsável:
WPRO
ABSTRACT
OBJECTIVE@#To analyze the clinical phenotype and genetic variant in a Chinese pedigree affected with benign familial neonatal convulsion (BFNC).@*METHODS@#Clinical data and peripheral blood samples of the pedigree were obtained with informed consent. Whole exome sequencing (WES) was carried out for the proband. Candidate variants were verified by Sanger sequencing.@*RESULTS@#The pedigree comprised 9 individuals, among whom 4 were affected, including 3 males and 1 female. All patients had developed seizures during the neonatal period, which had ceased in 4 to 6 months. One patient had recurrence in between 1 and 2 years old. Genetic testing has identified a novel nonsense c.810G>A (p.W270X) variant in exon 5 of the KCNQ2 gene, which has co-separated with the BFNC phenotype in the pedigree.@*CONCLUSION@#The patients from this pedigree have conformed to the diagnosis of BFNC with good prognosis, which was in keeping with previously reported cases. The heterozygous c.810G>A (p.W270X) nonsense variant of the KCNQ2 gene probably underlay the pathogenesis of BFNC in this pedigree, which has expanded the mutational spectrum of the disease.
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Linhagem
/
China
/
Testes Genéticos
/
Epilepsia Neonatal Benigna
/
Povo Asiático
/
Mutação
Limite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
País/Região como assunto:
Asia
Idioma:
Zh
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2022
Tipo de documento:
Article