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Τρίτη 6 Ιουλίου 2021

A novel MYH9 mutation related to non-syndromic delayed post-lingual sensorineural hearing loss

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Eur Arch Otorhinolaryngol. 2021 Jul 6. doi: 10.1007/s00405-021-06976-2. Online ahead of print.

ABSTRACT

OBJECTIVE: Hearing loss (HL) is the most common sensory organ dysfunction disease. The cause is often complex, though genetics are the main factor.

METHODS: In this study, we investigated a Chinese family with non-syndromic delayed post-lingual deafness. Comprehensive data collection was performed on this family's members, including basic information, audiological examinations, blood system examinations and imaging examinations. A pedigree diagram was drawn and the genetic patterns were analyzed.

RESULTS: A new gene mutation, c.314A>T:p.Y105F in the MYH9 exon, was confirmed by next generation sequencing and Sanger sequencing. This mutation co-segregated with the phenotype in the pedigree. Patients in this family present bilateral symmetry and gradual and delayed high-frequency sensorineural hearing loss. The age of ons et was approximately 30 years old. Except for hearing loss, no lesions were seen in other organs, especially the blood system.

CONCLUSION: The identification and detection of a novel MYH9 mutation may be of great significance to provide the basis for gene function research and genetic consultation.

PMID:34228168 | DOI:10.1007/s00405-021-06976-2

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