Novel pathogenic variants underlie SLC26A4-related hearing loss in a multiethnic cohort. (October 2017)

• Record Type: Journal Article
• Authors: Cengiz, Filiz Basak; Yilmazer, Rasim; Olgun, Levent; Sennaroglu, Levent; Kirazli, Tayfun; Alper, Hudaver; Olgun, Yuksel; Incesulu, Armagan; Atik, Tahir; Huesca-Hernandez, Fabiola; Domínguez-Aburto, Juan; González-Rosado, Garly; Hernandez-Zamora, Edgar; Arenas-Sordo, Maria de la Luz; Menendez, Ibis; Orhan, Kadir Serkan; Avci, Hakan; Mahdieh, Nejat; Bonyadi, Mortaza; Foster, Joseph; Duman, Duygu; Ozkinay, Ferda; Blanton, Susan H.; Bademci, Guney; Tekin, Mustafa
• Is Part Of: International journal of pediatric otorhinolaryngology. Volume 101(2017:Oct.)
• Page Start: 167
• Page End: 171
• Publication Date: 2017-10
• Subjects: Hearing loss -- SLC26A4 -- Whole exome sequencing; Otolaryngology -- Periodicals; Pediatrics -- Periodicals; Otolaryngology -- Periodicals; Pediatrics -- Periodicals; Oto-rhino-laryngologie -- Périodiques; Pédiatrie -- Périodiques; 618.9209751
• DOI: 10.1016/j.ijporl.2017.08.006
• Languages: English
• ISSNs: 0165-5876

Abstract

Abstract: Objectives: The genetics of sensorineural hearing loss is characterized by a high degree of heterogeneity. Despite this heterogeneity, DNA variants found within SLC26A4 have been reported to be the second most common contributor after those of GJB2 in many populations. Methods: Whole exome sequencing and/or Sanger sequencing of SLC26A4 in 117 individuals with sensorineural hearing loss with or without inner ear anomalies but not with goiter from Turkey, Iran, and Mexico were performed. Results: We identified 27 unique SLC26A4 variants in 31 probands. The variants c.1673A > G (p.N558S), c.1708-1G > A, c.1952C > T (p.P651L), and c.2090-1G > A have not been previously reported. The p.N558S variant was detected in two unrelated Mexican families. Conclusion: A range of SLC26A4 variants without a common recurrent mutation underlies SLC26A4 -related hearing loss in Turkey, Iran, and Mexico.