Most familial congenital deafness is inherited as an autosomal recessive trait. Heterogeneity is high, and to date 39 non-syndromic recessive loci have been identified (Van Camp et al., 1997). Twenty causally related genes have been cloned that encodes proteins with a wide range of functions (Van Camp and Smith, 2003). Interestingly and unexpectedly, mutations in GJB2 at the DFNB1 locus are responsible for half of severe-to-profound autosomal recessive non-syndromic deafness (ARNSD) in many world populations, making DFNB1 the most common type of hereditary congenital hearing loss (Green et al., 1999; Zelante et al., 1997). These discoveries have several important consequences. First, the identification of genes essential for normal auditory function is providing insight into inner ear physiology at the molecular level. Second, the ability to recognize specific types of genetic deafness has made comparative studies of genotype, phenotype and habilitative outcome feasible. And third, the use of genetic testing to diagnose ARNSD has changed the medical evaluation of the deaf person. This competing continuation will continue to focus on these areas by addressing specific aims: 1) To identify novel ARNSD genes; (2) To define genotype-phenotype associations in persons with DFNB1 deafness; (3) To study Pendred syndrome as a complex disease, focusing on the role of FOXI1 and its interacting partners in the Pendred syndrome phenotype.
| Booth, K T; Kahrizi, K; Babanejad, M et al. (2018) Variants in CIB2 cause DFNB48 and not USH1J. Clin Genet 93:812-821 |
| Booth, Kevin T; Kahrizi, Kimia; Najmabadi, Hossein et al. (2018) Old gene, new phenotype: splice-altering variants in CEACAM16 cause recessive non-syndromic hearing impairment. J Med Genet 55:555-560 |
| Avenarius, Matthew R; Jung, Jae-Yun; Askew, Charles et al. (2018) Grxcr2 is required for stereocilia morphogenesis in the cochlea. PLoS One 13:e0201713 |
| Booth, Kevin T; Askew, James W; Talebizadeh, Zohreh et al. (2018) Splice-altering variant in COL11A1 as a cause of nonsyndromic hearing loss DFNA37. Genet Med : |
| Azaiez, Hela; Booth, Kevin T; Ephraim, Sean S et al. (2018) Genomic Landscape and Mutational Signatures of Deafness-Associated Genes. Am J Hum Genet 103:484-497 |
| Imtiaz, Ayesha; Belyantseva, Inna A; Beirl, Alisha J et al. (2018) CDC14A phosphatase is essential for hearing and male fertility in mouse and human. Hum Mol Genet 27:780-798 |
| Booth, Kevin T; Azaiez, Hela; Kahrizi, Kimia et al. (2018) Exonic mutations and exon skipping: Lessons learned from DFNA5. Hum Mutat 39:433-440 |
| Michel, Vincent; Booth, Kevin T; Patni, Pranav et al. (2017) CIB2, defective in isolated deafness, is key for auditory hair cell mechanotransduction and survival. EMBO Mol Med 9:1711-1731 |
| Shearer, A Eliot; Eppsteiner, Robert W; Frees, Kathy et al. (2017) Genetic variants in the peripheral auditory system significantly affect adult cochlear implant performance. Hear Res 348:138-142 |
| Lansdon, L A; Bernabe, H V; Nidey, N et al. (2017) The Use of Variant Maps to Explore Domain-Specific Mutations of FGFR1. J Dent Res 96:1339-1345 |
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