《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2020, Vol. 26 ›› Issue (5): 607-609.doi: 10.3969/j.issn.1006-9771.2020.05.023

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Deafness Gene Mutations in Ningbo: 1781 Newborns Study

BAO You-wei,PAN Xiao-li,PAN Shu-qing,PAN Jie-wen,LI Hai-bo()   

  1. Ningbo Municipal Key Laboratory of Comprehensive Prevention and Treatment of Birth Defects, Ningbo Women and Children's Hospital, Ningbo, Zhejiang 315012, China
  • Received:2019-09-30 Revised:2019-11-11 Published:2020-05-25 Online:2020-05-29
  • Contact: LI Hai-bo E-mail:lihaibo-775@163.com
  • Supported by:
    Zhejiang Medical and Health Project(2020KY889);National Population and Reproductive Health Science Data Center(Grant)(2005DKA32408);Ningbo Innovation Team(2014B82003)

Abstract:

Objective To analyze the mutation types and frequency of deafness genes in Ningbo newborns.Methods From January to September, 2019, 1781 newborns in Ningbo Women and Children's Hospital accepted deafness gene screening, including 22 mutations of four common deafness genes.Results There were 104 newborns who were found deafness gene mutation (5.84%), 59 boys and 45 girls. Mutation rate was 3. 31% (59/1781) for GJB2, 0.56% (10/1781) for GJB3, 0.39% (7/1781) for mtDNA, and 1.57% (28/1781) for SLC26A4.Conclusion The mutation rate of deafness gene in newborns in Ningbo is higher than the China average level, especially the rate of GJB2. It is necessary to screen newborn deafness gene earlier.

Key words: hereditary hearing loss, newborn, hearing screening, gene mutation

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