TY - JOUR JF - ijmcmed JO - Int J Mol Cell Med VL - 2 IS - 1 PY - 2013 Y1 - 2013/3/01 TI - Investigation of LRTOMT gene (locus DFNB63) mutations in Iranian patients with autosomal recessive non-syndromic hearing loss TT - N2 - Hearing loss (HL) is the most frequent sensory defect affecting 1 in 1000 neonates. This can occur due to genetic or environmental causes or both. The genetic causes are very heterogenous and over 100 loci have been identified to cause autosomal recessive non - syndromic hearing loss (ARNSHL). The aim of this study was to determine the contribution of the LRTOMT gene mutations in causing ARNSHL. One hundred fifty seven pupils affected with ARNSHL from Azarbaijan Sharghi, Kordestan, Gilan and Golestan provinces, north and west of Iran, were ascertained. In this descriptive - laboratory study, the presence of LRTOMT mutations were initially checked using PCR – Single - strand conformation polymorphism (SSCP) and heteroduplex analysis (HA) strategy. Samples with shifted bands on the gel were confirmed by DNA sequencing method. The PCR-SSCP/HA and the subsequent direct DNA sequencing showed no mutation in the population studied. We conclude that LRTOMT mutations have no role in causing sporadic deafness in the studied population. Further studies on other populations and samples could clarify the exact role of LRTOMT mutations. SP - 41 EP - 45 AU - Taghizadeh, Seyyed Hossein AU - Kazeminezhad, Seyyed Reza AU - Sefidgar, Seyyed Ali Asghar AU - Yazdanpanahi, Nasrin AU - Tabatabaeifar, Mohammad Amin AU - Yousefi, Ahmad AU - Lesani, Seyyed Mohammad AU - Abolhasani, Marziyeh AU - Hashemzadeh Chaleshtori, Morteza AD - Department of Genetic, Faculty of Science, ShahidChamran University of Ahwaz, Ahwaz, Iran. KW - - syndromic sporadic hearing loss KW - DFNB63 KW - LRTOMT gene KW - PCR - SSCP KW - heteroduplex KW - Iran UR - http://ijmcmed.org/article-1-66-en.html ER -