Combined hearing and deafness gene mutation screening of 11,046 Chinese newborns / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 766-770, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-287993
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the efficacy of combined newborn hearing screening and deafness-related mutation screening.</p><p><b>METHODS</b>Eleven thousand and forty-six newborn babies were screened with otoacoustic emission, automatic auditory brainstem response and genetic testing using a standard protocol. Common mutations of three deafness-related genes have included GJB2 (c.235delC, c.299-300delAT), mtDNA 12srRNA (c.1494C>T, c.1555A>G) and SLC26A4 (c.2168A>G, c.IVS7-2A>G).</p><p><b>RESULTS</b>The detection rate for hearing loss in the first-step screening was 0.81% (90/11,046). 513 individuals were found to carry one or two mutant alleles, which gave a carrier rate of 4.64% (513/11,046). Five hundred and eighty-four newborns were positive for hearing screening and genetic screening. Among these, 19 have failed both tests, 71 have failed hearing screening, and 494 have failed genetic screening. The combined hearing and genetic screening has given a positive rate of 5.29%.</p><p><b>CONCLUSION</b>Neither hearing screening nor genetic screening is sufficient to identify individuals susceptible to auditory disorders. Combined used of these methods can improve the rate of detection.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Membrane Transport Proteins
/
DNA, Mitochondrial
/
RNA, Ribosomal
/
DNA Mutational Analysis
/
Chemistry
/
China
/
Genetic Testing
/
Polymerase Chain Reaction
/
Reproducibility of Results
/
Sensitivity and Specificity
Type of study:
Diagnostic study
/
Prognostic study
/
Screening study
Limits:
Humans
/
Infant, Newborn
Country/Region as subject:
Asia
Language:
Chinese
Journal:
Chinese Journal of Medical Genetics
Year:
2015
Type:
Article
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