© 1995 Oxford University Press
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Consanguineous nuclear families used to identify a new locus for recessive non-syndromic hearing loss on 14q
Molecular Otolaryngology Research Laboratories, Department of Otolaryngology, University of lowa lowa City, IA, 52242, USA 1Department of Genetics, University of Madras Madras, India 2Department of Medical Genetics, University of Antwerp (UIA) 2610 Antwerpen, Belgium 3Boys Town National Research Hospital Omaha, NE 4National Institute on Deafness and Other Communication Disorders, National Institutes of Health Rockville, MD, USA
*To whom correspondence should be addressed
Received April 28, 1996; Accepted June 14, 1995
Hearing impairment is inherited most frequently as an autosomal recessive isolated clinical finding (non-syndromic hearing loss, NSHL). Extreme heterogeneity and phenotypic variability in the audiometric profile preclude pooling of affected families and severely hamper gene mapping by conventional linkage analysis. However, in instances of consanguinity, homozygosity mapping can be used to identify disease loci in small nuclear families. This report demonstrates the power of this technique by identifying a locus for recessive NSHL on 14q (DFNB4).
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