To the Editor: Recently, the pathologic process underlying nonsyndromicforms of inherited hearing impairment has been studied at themolecular level.1 The previously localized DFNA3 and DFNB1 loci,which are associated with nonsyndromic deafness of dominantand recessive inheritance, have in white families been attributedto sense (M34T) and nonsense (W24X or W77X) mutations, respectively,of the gene encoding the gap-junction protein connexin 26 (Cx26).1
We describe a different mutation of the Cx26 gene in severalfamilies in a village in eastern Ghana known nationwide forhaving an extraordinarily high prevalence of profound nonsyndromichearing impairment.2 A linkage . . . [Full Text of this Article]
References
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