[Nonsyndromic deafness and mitochondrial DNA mutation].


OBJECTIVE To analysis whether there is any mtDNA 1555A-->G homoplasmic point mutation among familial nonsyndromic deafness. METHOD Polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) were used to screen the mutation 1555A-->G among four nonsyndromic deafness families. RESULT The same mutations were checked out in 4 of 5… (More)


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