6Master of Science in Virology, Genetics Department, Kerman Social Welfare and Rehabilitation Organization, Kerman Iran
7Master of Science in Genetics
8Audiologist, Head of Otolaryngology Research Center
9Head of Gentics Department, Otolaryngology Research Center, University of Iowa City, IA, USA.
10Associate Professor of Genetics, Genetics Research Center, The University of Social Welfare and Rehabilitation, Tehran, Iran.
Congenital hearing loss with many genetic and environmental causes affects 1 in 1000 newborns. Mutations in the GJB2(Gap Junction Beta-2) gene encoding the gap junction protein connexin 26 have been established as the main cause of autosomal recessive non-syndromic hearing loss. The aim of this study was to study the frequency of one mutation (35delG) of GJB2 gene in Kerman non-syndromic deaf population. For this purpose, 130 chromosomes from 65 patients were studied and 35delG mutation was diagnosed in 3(2.3%) chromosomes (one patient was homozygote and the other one was heterozygote). This rate of frequency is significantly higher comparing to that in the whole population of Iran.