High Frequency of the p.R34X Mutation in the TMC1 Gene Associated with Nonsyndromic Hearing Loss Is Due to Founder Effects

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High frequency of the p.R34X mutation in the TMC1 gene associated with nonsyndromic hearing loss is due to founder effects.

Founder mutations, particularly 35delG in the GJB2 gene, have to a large extent contributed to the high frequency of autosomal recessive nonsyndromic hearing loss (ARNSHL). Mutations in transmembrane channel-like gene 1 (TMC1) cause ARNSHL. The p.R34X mutation is the most frequent known mutation in the TMC1 gene. To study the origin of this mutation and determine whether it arose in a common an...

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Autosomal Recessive Nonsyndromic Hearing Loss: A Case Report with a Mutation in TRIOBP Gene

Hearing loss (HL) is the most common sensory defect. Various genetic as well as environmental factors have been shown to contribute in it. More than 100 loci have been recognized to cause autosomal recessive nonsyndromic hearing loss (ARNSHL). Here, we report a 6-year old female patient with bilateral pre-lingual HL in whom a mutation has been identified in TRIOBP gene (c.6362C>T, S2121L). In s...

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a novel de novo dominant mutation in gjb2 gene associated with a sporadic case of nonsyndromic sensorineural hearing loss.

mutations in the gjb2 gene are the most common known cause of hereditary congenital hearing loss. rapid genomic dna extraction (rgde) method was used for genomic dna extraction. after amplification of coding region of cx26 gene with specific primers, expected pcr products with 724bp length were subjected to direct sequencing in both directions. we describe here a novel heterozygous -t to -c tra...

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ژورنال

عنوان ژورنال: Genetic Testing and Molecular Biomarkers

سال: 2010

ISSN: 1945-0265,1945-0257

DOI: 10.1089/gtmb.2009.0174