Compound Heterozygosity for Two Novel SLC26A4 Mutations in a Large Iranian Pedigree with Pendred Syndrome

Nasrin Yazdanpanahi; Mohammad Amin Tabatabaiefar; Effat Farrokhi; Narges Abdian; Nader Bagheri; Shirin Shahbazi; Zahra Noormohammadi; Morteza Hashemzadeh Chaleshtori

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저자정보: Nasrin Yazdanpanahi Mohammad Amin Tabatabaiefar Effat Farrokhi Narges Abdian Nader Bagheri Shirin Shahbazi Zahra Noormohammadi Morteza Hashemzadeh Chaleshtori

저널정보: 대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology 제6권 제4호

발행연도: 2013.1

수록면: 201 - 208 (8page)

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Objectives. The aim of this study was to detect the genetic cause of deafness in a large Iranian family. Due to the importance of SLC26A4 in causing hearing loss, information about the gene mutations can be beneficial in molecular detection and management of deaf patients. Methods. We investigated the genetic etiology in a large consanguineous family with 9 deaf patients from Fars province of Iran with no GJB2 mutations. Initially, linkage analysis was performed by four DFNB4 short tandem repeat markers. The result showed linkage to DFNB4 locus. Following that, DNA sequencing of all 21 exons, their adjacent intronic sequences and the promoter of SLC26A4 was carried out for mutation detection. Results. Two novel mutations (c.863-864insT and c.881-882delAC) were identified in exon 7 of the gene, in both homozygous and compound heterozygous state in patients. Conclusion. Our results supported the importance of the SLC26A4 mutations in the etiology of hearing loss among the Iranian patients and therefore its mutation screening should be considered after GJB2 in the molecular diagnostics of hearing loss, especially when enlarged vestibular aqueduct or goiter is detected.

#Novel mutation #Compound heterozygosity #SLC26A4 #Pendred syndrome #Hearing loss #Linkage analysis #Iran

참고문헌 (24)

참고문헌 신청

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