目的研究分析ABCA3基因突变与早产儿呼吸窘迫综合征( RDS)发病的关系。方法以207例早产儿为研究对象,其中RDS患儿123例(病例组),非RDS患儿84例(对照组),选择前期人群研究中获得的ABCA3基因上的3个突变位点(G205R、G668D、G1608C)为研究位点,应用Sequenom公司的Mass Array技术对两组早产儿进行基因型分析。结果在123例RDS和84例非RDS早产儿中,在G205R、G668D、G1608C三个位点的基因型均为GG、GG、GG型,未发现基因突变(GA、GA、GT)。结论ABCA3基因上的G205R、G668D和G1608C突变为低频突变,在早产儿中发生率低,因此,尚无足够依据认为ABCA3基因突变是早产儿RDS发病的危险因素。
ObjectiveTo study the relationship between ATP-binding cassette transporter A3 (ABCA3) gene mutation and respiratory distress syndrome in preterm infants. MethodsA total of 207 cases of preterm infants were recruited as the research objects, including 123 respiratory distress syndrome (RDS) and 84 non-RDS. Sequenom′s Mass Array methods was used to analyzed the genotype of the three mutation (G205R, G668D, G1608C) in ABCA3 gene. ResultsNone of mutation (GA、GA、GT)was found in RDS group(123 cases)and non-RDS group(84 cases), the genotype of G205R, G668D, G1608C were GG, GG, GG, respectively. ConclusionsThe mutation frequency of G205R, G668D, G1608C in ABCA3 gene is quite rare and the rate is low in preterm infants. Thus, there is not enough evidence to prove that the ABCA3 gene mutation is the risk for RDS in preterm infants.