The Use of Next-Generation Sequencing for Hearing Loss
2012
Objective: Recently, next-generation sequencing (NGS) technology has emerged as a possible revolutionary force changing the paradigm of molecular diagnosis by offering high-throughput sequencing. In the present study, we have evaluated the performance of NGS to identify the sequence variants in a panel of 24 genes associated with hereditary hearing loss.Method: The coding and flanking intronic regions covering 177 kb target sequence were enriched using microdroplet PCR from 8 samples and sequenced in a single lane on Illumina HiSeq 2000 instrument. The quality filtered sequence reads were mapped to the human reference sequence. The sequence variants were evaluated using novel pathogenecity filter.Results: Of the 1148 variants detected in all 8 samples, 810 (71%) were classified as true variants using our filtering criteria. To validate our strategy, we Sanger sequenced regions of 4/24 genes, accounting for about 25% of all target sequences. Of the 373 variants detected in these 4 genes, we classified 265 ...
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