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Abstract: Deafness refers to different degrees of hearing loss (HI) .The factors leading to HI are complex, among which heredity is a major one.Nonsyndromic hearing loss (NSHL) accounts for 80% of hereditary deafness.More than 140genes have been regarded to be closely related to NSHL.The mutation of GJB2 (gap junction protein, beta 2) gene accounts for 80%of NSHL and more than 50%of children NSHL, playing the most important role in deafness genes.This paper reviewed the studies on the association between GJB2gene mutation and HI to provide reference for genetic diagnosis and counseling.
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Key words:
- GJB2 gene /
- mutation /
- hearing loss
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