scholarly journals The Prevalence and Clinical Characteristics of TECTA-Associated Autosomal Dominant Hearing Loss

Genes ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 744 ◽  
Author(s):  
Rika Yasukawa ◽  
Hideaki Moteki ◽  
Shin-ya Nishio ◽  
Kotaro Ishikawa ◽  
Satoko Abe ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Autosomal Dominant ◽  
Hot Spot ◽  
Missense Variant ◽  
Sensorineural Hearing ◽  
Sequencing Analysis ◽  
Causative Gene ◽  
Ethnic Populations ◽  
Next Generation Sequencing Analysis

TECTA is well known as a causative gene for autosomal dominant mid-frequency hearing loss observed in various populations. In this study, we performed next-generation sequencing analysis of a large Japanese hearing loss cohort, including eight hundred and twelve (812) subjects from unrelated autosomal dominant hearing loss families, to estimate the prevalence and phenotype-genotype correlations in patients with TECTA mutations. The prevalence of TECTA mutations in Japanese autosomal dominant sensorineural hearing loss families was found to be 3.2%. With regard to the type of hearing loss, the patients with mutations in the nidogen-like domain or ZA domain of TECTA showed varied audiograms. However, most of the patients with mutations in the ZP domain showed mid-frequency hearing loss. The rate of hearing deterioration in TECTA-associated hearing loss patients and in the normal hearing Japanese control population were the same and regression lines for each group were parallel. We carried out haplotype analysis for four families which had one recurring missense variant, c.5597C>T (p.Thr1866Met). Our results revealed four different haplotypes, suggesting that this mutation occurred independently in each family. In conclusion, TECTA variants represent the second largest cause of autosomal dominant sensorineural hearing loss in Japan. The hearing loss progression observed in the patients with TECTA mutations might reflect presbycusis. The c.5597C>T mutation occurred in a mutational hot spot and is observed in many ethnic populations.

Novel TECTA Mutations Identified in Stable Sensorineural Hearing Loss and Their Clinical Implications

2014 ◽  
Vol 20 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Ah Reum Kim ◽  
Mun Young Chang ◽  
Ja-Won Koo ◽  
Seung Ha Oh ◽  
Byung Yoon Choi
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
High Frequency ◽  
Autosomal Dominant ◽  
Sensorineural Hearing ◽  
Clinical Feature ◽  
Phenotype Correlation ◽  
Causative Gene ◽  
Bioinformatics Analyses ◽  
Genotype Phenotype Correlation

TECTA is a causative gene of autosomal dominant (DFNA8/A12) and autosomal recessive (DFNB 21) nonsyndromic sensorineural hearing loss (NSHL). Mutations in TECTA account for 4% of all autosomal dominant NSHL cases in some populations and are thus thought to be one of the major causes of autosomal dominant NSHL. A genotype-phenotype correlation for autosomal dominant mutations in the TECTA gene has been proposed. Two families (SB146 and SB149), which segregated moderate NSHL in an autosomal dominant fashion, were included in this study. We performed targeted resequencing of 134 known deafness genes (TRS-134) and bioinformatics analyses to find causative mutations for NSHL in these 2 families. Through TRS-134, we detected 2 novel mutations, i.e. c.3995G>T (p.C1332F) and c.5618C>T (p.T1873I), in the TECTA gene. These mutations cosegregated with NSHL in the studied families and were not detected in normal controls. The mutations c.3995G>T and c.5618C>T reside in the von Willebrand factor type D3-D4 (vWFD3-D4) interdomain of the zonadhesin (ZA) domain and the zona pellucida (ZP) domain, respectively. p.C1332F is the first mutation detected in the vWFD3-D4 interdomain of the ZA domain. The mutations p.C1332F and p.T1873I were associated with stable high-frequency and mid-frequency hearing loss, respectively. Notably, the cysteine residue mutated to phenylalanine in SB146 was not related to progression of sensorineural hearing loss, which argues against the previous hypothesis. Here we confirm a known genotype-phenotype correlation for the ZP domain and propose a hypothetical genotype-phenotype correlation which relates mutations in vWFD3-D4 to stable high-frequency NSHL in Koreans. This clinical feature makes subjects with the missense mutation in the vWFD3-D4 interdomain of TECTA potentially good candidates for middle ear implantation. i 2014 S. Karger AG, Basel

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) presenting with sudden sensorineural hearing loss

2005 ◽  
Vol 119 (2) ◽  
pp. 148-151 ◽  
Author(s):  
John S Phillips ◽  
Jacquelyn A King ◽  
Siddharthan Chandran ◽  
Peter R Prinsley ◽  
David Dick
Keyword(s):  
Hearing Loss ◽  
Family History ◽  
Sensorineural Hearing Loss ◽  
World Literature ◽  
Autosomal Dominant ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Cerebrovascular Events ◽  
The World

CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy) is an autosomal dominant angiopathy characterized by recurrent cerebrovascular events, migraine and dementia. We describe a case of sensorineural hearing loss as the presenting feature of this condition. We have found no previous reports in the world literature of CADASIL presenting with a sudden sensorineural hearing loss. The significance of questioning a patient with regard to family history is exemplified in this case.

A mutation in Wolfram syndrome type 1 gene in a Japanese family with autosomal dominant low-frequency sensorineural hearing loss

2005 ◽  
Vol 125 (11) ◽  
pp. 1189-1194 ◽  
Author(s):  
Yoshihiro Noguchi ◽  
Takatoshi Yashima ◽  
Akio Hatanaka ◽  
Masamichi Uzawa ◽  
Michio Yasunami ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Autosomal Dominant ◽  
Low Frequency ◽  
Wolfram Syndrome ◽  
Sensorineural Hearing ◽  
Syndrome Type ◽  
Japanese Family

scholarly journals Prevalence of Mutations in the GJB2, SLC26A4, GJB3, and MT-RNR1 Genes in 103 Children with Sensorineural Hearing Loss in Shaoxing, China

2018 ◽  
Vol 97 (6) ◽  
pp. E33-E38 ◽  
Author(s):  
Hong Yu ◽  
Dan Liu ◽  
Jingqun Yang ◽  
Zhiqiang Wu
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Genetic Screening ◽  
Mutant Allele ◽  
Hot Spot ◽  
Pathogenic Mutation ◽  
Sensorineural Hearing ◽  
Common Cause ◽  
Vestibular Aqueduct ◽  
Multiple Pcr

Mutations in the GJB2, SLC26A4, GJB3, and MT-RNR1 genes are known to be a common cause of hearing loss. However, the frequency of hot-spot mutations and genotype-phenotype correlations in patients with sensorineural hearing loss (SNHL) has been less frequently reported. We conducted a study of 103 children—56 boys and 47 girls, aged 5 months to 9 years (mean: 4.1 yr)—with SNHL who underwent genetic screening for 20 hot-spot mutations of the GJB2, SLC26A4, GJB3, and MT-RNR1 genes. Mutations were detected by multiple-PCR-based MALDI-TOF MS assay. At least one mutated allele was detected in 48 patients (46.6%), and 30 patients (29.1%) carried pathogenic mutations. Among all the detected mutations, the most common were GJB2 c.235delC and SLC26A4 c.919-2A>G, with allele frequencies of 23.8 and 6.8%, respectively. At least one mutant allele of SLC26A4 was detected in the 13 patients who had an enlarged vestibular aqueduct (EVA). Almost half of the children with SNHL carried a common deafness-related mutation, and nearly one-third carried a pathogenic mutation. The mutations in SLC26A4 were prevalent and correlated strongly with EVA.

Autosomal-Dominant Progressive Sensorineural Hearing Loss in a Large North American Family

1996 ◽  
Vol 5 (1) ◽  
pp. 105-111 ◽  
Author(s):  
Chris Halpin ◽  
Umang Khetarpal ◽  
Michael McKenna
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
North American ◽  
Autosomal Dominant ◽  
Family Members ◽  
Sensorineural Hearing ◽  
American Family ◽  
Dominant Mutation ◽  
The Family ◽  
Temporal Bones

Forty-nine members of a family with autosomal-dominant progressive sensorineural hearing loss were evaluated by audiologists, otologists, and geneticists. The results presented here show a nonsyndromic, autosomal-dominant mutation causing progressive sensorineural hearing loss beginning at about age 20 and becoming profound by approximately age 45. Because of the unambiguous nature of the hearing loss, the size of the family, and the availability of two previously described temporal bones from family members, a fairly complete description of the nature and impact of this mutation will be presented.

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