白介素6受体基因rs4129267位点多态性与汉族儿童哮喘易患性及血清IgE水平的关联研究  

Correlation between rs4129267 Polymorphism on IL-6R Gene and Pediatric Asthma Susceptibility and Serum IgE Level of Han Chinese Children

作　　者：李增清[1] 杨东新[1] 周真[1] 赵小琴[1] 赵慧[1] 谢丹宇[1] 郭素华[1] 胡兢晶[1] 王波[1] 

机构地区：[1]广东省妇幼保健院广东省儿童医院广东省妇产医院儿科,广东省广州市511400

出　　处：《中国全科医学》2016年第36期4474-4477,共4页Chinese General Practice

基　　金：广东省自然科学基金资助项目(s2013010012670)

摘　　要：背景有研究证实,白介素6受体（IL-6R）基因中的rs4129267位点多态性与哮喘易患性显著相关,但尚无评估rs4129267位点多态性在汉族儿童中分布情况及其与血清IgE水平相关性的研究。目的研究IL-6R基因rs4129267位点多态性与汉族儿童哮喘易患性及血清IgE水平的关系。方法选取2013—2014年于广东省妇幼保健院儿科就诊的哮喘患儿410例为哮喘组,同期选取广东省妇幼保健院住院的非哮喘患儿513例为对照组。提取两组患儿基因组DNA,采用SNa Pshot法对IL-6R基因rs4129267、rs527236128位点进行基因分型,采用酶联免疫吸附试验（ELISA）法检测两组患儿血清总IgE水平。结果两组患儿rs4129267位点和rs527236128位点的基因型分布均符合Hardy-Weinberg平衡（χ~2=3.264、2.135,P〉0.05）。两组患儿rs4129267位点基因型频率和等位基因频率比较,差异有统计学意义（P〈0.05）。两组患儿rs527236128位点基因型频率和等位基因频率比较,差异无统计学意义（P〉0.05）。Logistic回归分析结果显示,TT基因型是儿童哮喘的影响因素（P〈0.05）。对照组患儿血清总IgE水平低于哮喘组（P〈0.05）。对照组、哮喘组组内不同基因型患儿血清总IgE水平比较,差异无统计学意义（P〉0.05）;对照组各基因型患儿血清总IgE水平均低于哮喘组（P〈0.05）。结论 IL-6R基因rs4129267位点多态性与汉族儿童哮喘易患性有关,而与哮喘患儿血清IgE水平无关。Background Research has confirmed the significant correlation between rs4129267 polymorphism on IL-6R gene and pediatric asthma suseptibility,but currently,the distribution of rs4129267 polymorphism among Han Chinese children and its correlation with serum Ig E level have not been studied. Objective To investigate the correlation between rs4129267 polymorphism on IL-6R gene and pediatric asthma susceptibility and serum Ig E level of Han Chinese children. Methods410 asthma children from Department of Pediatrics of Guangdong Women and Children Hospital were selected as asthma group from 2013 to 2014. 513 non asthma children in the same hospital were selected as control group during the same period. The DNA samples of two groups were extracted. Then the sites of rs4129267 and rs527236128 at IL-6R gene were genotyped by SNa Pshot method. The total serum Ig E level of two groups was determined by ELISA. Results The genetic distributions of rs4129267 and rs527236128 were accorded with Hardy- Weinberg equilibrium（ χ2= 3. 264,2. 135,P 〉0. 05）. The genotype frequency and allele frequency of rs4129267 were significantly different between the two groups（ P 〈0. 05）. The genotype frequency and allele frequency of SNP rs527236128 were not significantly different between the two groups（ P〉 0. 05）. The Logistic regression result showed that TT genotype was the risk factor to pediatric asthma（ P〈 0. 05）. The total serum Ig E level of control group was lower than that of asthma group（ P〈 0. 05）. There was no significant difference in the total serum Ig E level among different genotypes in two groups（ P 〉0. 05）. The total serum Ig E levels at all kinds of genotypes of control group were lower than those of asthma group（ P 〈0. 05）. Conclusion rs4129267 polymorphisms on IL-6R gene is related to pediatric asthma suseptibility in Han Chinese children,but is not related to their serum Ig E levels.

关 键 词：哮喘 疾病易感性 儿童 汉族 免疫球蛋白E 受体 白细胞介素6 多态性 单核苷酸 

分 类 号：R562.25[医药卫生—呼吸系统]