Tag Archives: hearing impairment

Non-syndromic hearing impairment in India: High allelic heterogeneity among mutations in TMPRSS3, TMC1, USHIC, CDH23 and TMIE

Hearing impairment is the most common sensory defect in humans, occurring at a frequency of about one in 1000 live births, of which 50% are due to genetic causes [1]. About 70% of hereditary hearing loss is non-syndromic, wherein hearing impairment is not associated with any additional clinical phenotype. To date, 65 genes for non-syndromic hearing loss (NSHL) have been identified (http://hereditaryhearingloss.org/) [2].

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