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  • Title: DFNB40, a recessive form of sensorineural hearing loss, maps to chromosome 22q11.21-12.1.
    Author: Delmaghani S, Aghaie A, Compain-Nouaille S, Ataie A, Lemainque A, Zeinali S, Lathrop M, Weil D, Petit C.
    Journal: Eur J Hum Genet; 2003 Oct; 11(10):816-8. PubMed ID: 14512974.
    Abstract:
    We report on a novel localization for a recessive form of deafness (DFNB), by linkage analysis in an Iranian consanguineous family. Affected individuals suffer from prelingual profound sensorineural hearing loss. Genome-wide analysis led to the characterization of a new locus, DFNB40, which maps to an approximately 9 Mb interval between markers D22S427 and D22S1144 at chromosome 22q11.21-12.1. Maximum lod score of 3.09 was obtained with D22S1174. Since the Bronx waltzer (bv) mouse mutant, characterized by waltzing behavior, deafness, and degeneration of cochlear inner hair cells, has been mapped to the syntenic region on murine chromosome 5, we suggest that DFNB40 and bv may result from orthologous gene defects.
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