| 摘要: | 
			 
		     | 目的 了解湖州地区新生儿耳聋基因的携带率及突变类型。方法应用飞行时间质谱技术,对1814例新生儿进行GJB2、SLC26A4、GJB3、线粒体12SrRNA4个常见耳聋基因20个热点突变位点的检测。结果1814例新生儿中检测出GJB2基因突变54例(2.98%),SLC26A4基因突变24例(1.32%),GJB3基因突变12例(0.66%),线粒体12SrRNA基因突变2例(0.11%)。结论在湖州地区无耳聋家族史的新生儿中,GJB2和SLC26A4基因突变率较高,GJB3基因和线粒体12SrRNA基因突变较为少见。 | 
			
	         
				| 关键词:  新生儿  耳聋基因  突变 | 
			 
                | DOI: | 
            
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                | 基金项目:湖州市科学技术局公益性技术应用研究项目 | 
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                | Screening  for  neonatal  deafness-related  gene  mutation  sites | 
           
			
                | XIN Rong,GU Chunjian,LOU Zhiwu,SHEN Xueping | 
           
		   
		   
                | Huzhou Maternity and Child Care Hosptial | 
		   
             
                | Abstract: | 
			
                | Objective    To screen neonatal deafness-related gene mutation sites.    Methods Twenty mutation sites of 4 deafness susceptibility genes (GJB2, SLC26A4, GJB3 and mitochondria 12SrRNA) were examined with time-of-flight mass spectrometer  in  1814  newborns  from  Huzhou  area  of  Zhejiang  Province. Results Among  1814  newborns,GJB2,  SLC26A4, GJB3 and 12SrRNA mitochondrial gene mutations were detected in 54 (2.98%), 24 (1.32%), 12 (0.66%) and 2 (0.11%) newborns, respectively. Conclusion GJB2 and SLC26A4 gene mutation rates are in newborns without family history of hearing loss in Huzhou area. | 
	       
                | Key words:  Newborns   Deafness gene  Mutation |