نتایج جستجو برای: nonsyndromic deafness
تعداد نتایج: 9132 فیلتر نتایج به سال:
Cadherin related gene (CDH23), which encodes otocadherin is a novel member of the cadherin gene superfamily. CDH23 mutations were found in families with nonsyndromic autosomal recessive deafness (DFNB12), and in families with deafness associated with vestibular dysfunction and retinitis pigmentosa (USH1D), respectively (Bolz et al., 2001; Bork et al., 2001; Petit, 2001). DFNB12 has been located...
Hereditary hearing loss (HHL) comprises half of the congenital deafness which arises from genetic mutations. Mutations in the TJP2 gene, encoding tight junction protein 2, are one of the gene alterations in HHL resulting in an autosomal dominant nonsyndromic form of the disease. An 11-year-old male patient with clinically approved congenital hearing loss was referred to our laboratory....
TECTA-related deafness can be inherited as autosomal-dominant nonsyndromic deafness (designated DFNA) or as the autosomal-recessive version. The α-tectorin protein, which is encoded by the TECTA gene, is one of the major components of the tectorial membrane in the inner ear. Using targeted DNA capture and massively parallel sequencing (MPS), we screened 42 genes known to be responsible for huma...
Mutations in the GJB2 gene (Cx26) cause deafness in humans. Most are loss-of-function mutations and cause nonsyndromic deafness. Some mutations produce a gain of function and cause syndromic deafness associated with skin disorders, such as keratitis-ichthyosis-deafness syndrome (KIDS). Cx26-G45E is a lethal mutation linked to KIDS that forms constitutively active connexin hemichannels. The path...
Nonsyndromic Hereditary Hearing Loss is a common disorder accounting for at least 60% of prelingual deafness. GJB2 gene mutations, GJB6 deletion, and the A1555G mitochondrial mutation play a major role worldwide in causing deafness, but there is a high degree of genetic heterogeneity and many genes involved in deafness have not yet been identified. Therefore, there remains a need to search for ...
Clinical characteristics. Hereditary hearing loss and deafness may be conductive, sensorineural, or a combination of both; syndromic (associated with malformations of the external ear or other organs or with medical problems involving other organ systems) or nonsyndromic (no associated visible abnormalities of the external ear or any related medical problems); and prelingual (before language de...
The molecular basis for autosomal dominant progressive nonsyndromic hearing loss in an Israeli Jewish family, Family H, has been determined. Linkage analysis placed this deafness locus, DFNA15, on chromosome 5q31. The human homolog of mouse Pou4f3, a member of the POU-domain family of transcription factors whose targeted inactivation causes profound deafness in mice, was physically mapped to th...
Mutations in the DFNB1 locus, where two connexin genes are located (GJB2 and GJB6), account for half of congenital cases of nonsyndromic autosomal recessive deafness. Because of the high frequency of DFNB1 gene mutations and the availability of genetic diagnostic tests involving these genes, they are the best candidates to develop a risk prediction model of being hearing impaired. People underg...
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