Mutational analysis of 117 patients with non-syndromic hearing loss / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
; (6): 108-111, 2019.
Article
de Zh
| WPRIM
| ID: wpr-775802
Bibliothèque responsable:
WPRO
ABSTRACT
OBJECTIVE@#To determine the frequencies of deafness gene mutations among patients with non-syndromic hearing loss (NSHL) from northern Jiangsu province.@*METHODS@#A total of 117 patients with NSHL were enrolled. The coding region of GJB2 gene, IVS7-2A>G and 2168A>G mutations of SLC26A4 gene, and 1555A>G and 1494C>T mutations of mitochondrial DNA 12S rRNA were subjected to Sanger sequencing. Patients in whom no mutation was detected were further tested by targeted gene capture and high-throughput sequencing.@*RESULTS@#Among the 117 patients, 86 (73.50%) were found to carry mutations. GJB2 gene mutations were found in 61 patients (52.14%), including 22 (18.80%) with homozygous mutations and 39 (33.33%) with heterozygous mutations. SLC26A4 gene mutations were found in 19 patients (16.24%), including 4 (3.42%) with homozygous mutations and 15 with heterozygous mutations (14.53%). Mitochondrial 12S rRNA gene mutation was found in 6 patients (5.13%). Targeted gene capture and high-throughput sequencing of 8 patients identified 4 further cases, including 1 with RDX gene 129_130del and 76_79del compound heterozygous mutations, 1 with OTOF gene 1274G>C homozygous mutation, 1 with SLC26A4 gene 919-2A>G and IVS16-6G>A compound heterozygous mutation, and 1 with SLC26A4 gene 919-2A>G and A1673T compound heterozygous mutation.@*CONCLUSION@#The frequency of mutation among patients with NSHL from north Jiangsu was 73.50%, and GJB2 gene was most commonly mutated.
Texte intégral:
1
Base de données:
WPRIM
Sujet principal:
ADN mitochondrial
/
Analyse de mutations d'ADN
/
Chine
/
Connexines
/
Transporteurs de sulfate
/
Génétique
/
Perte d'audition
/
Protéines membranaires
/
Mutation
Limites:
Humans
Pays/Région comme sujet:
Asia
Langue:
Zh
Journal:
Chinese Journal of Medical Genetics
Année:
2019
Type de document:
Article