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  • Title: [Screening for mitochondrial 1555(G) mutation in patients with aminoglycoside antibiotic-induced deafness].
    Author: Yuan H, Jiang S, Yang W, Guo W, Cao J, Dai P.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 1999 Jun; 16(3):141-4. PubMed ID: 10359861.
    Abstract:
    OBJECTIVE: To identify the incidence of the 1555(G) mutation in pedigrees and sporadic patients with aminoglycoside antibiotic- induced deafness so as, to privide the theoretical evidence for establishing the method of diagnosis of this disease. METHODS: Blood samples were obtained from two pedigrees and seven sporadic patients with aminoglycoside antibiotic-induced deafness, and five mothers of the sporadic patients. DNA was extracted from the isolated leukocytes. The mitochondrial DNA fragments were amplified by PCR; 1555(G) mutation was detected by Alw26 I restriction endonuclease digestion. RESULTS: Fourteen individuals from two pedigrees carried homoplasmic 1555(G) mutation. Seven sporadic patients and the five mothers did not have 1555(G) mutation. CONCLUSION: The incidence of the 1555(G) mutation in pedigrees with aminoglycoside antibiotic-induced deafness is fairly high, while in sporadic patients is low. Screening for mitochondrial 1555(G) mutation is of potential value to clinical use.
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