SREBP2基因 rs2228314多态性与儿童青少年血脂水平和肥胖的关系  被引量:3

Association of rs2228314 polymorphism in SREBP2 with serum lipid levels and obesity among children and adolescents

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作  者:刘芳宏[1] 宋洁云[1] 马军[1] 尚晓瑞[1] 孟祥睿[1] 王海俊[1] 

机构地区:[1]北京大学公共卫生学院妇女与儿童青少年卫生学系 北京大学儿童青少年卫生研究所,北京100191

出  处:《北京大学学报(医学版)》2014年第3期355-359,共5页Journal of Peking University:Health Sciences

基  金:国家自然科学基金(81172683)资助~~

摘  要:目的:研究胆固醇调节元件结合蛋白2基因(sterol regulatory element binding protein 2 gene,SREBP2) rs2228314多态性与儿童青少年肥胖和血脂水平的关系。方法:研究对象来自前期工作中收集的两批样本,共2030名7岁至18岁中小学生,对这些学生进行身体测量和血清总胆固醇(total cholesterol,TC)、三酰甘油(triacylgly-ceride,TG)、高密度脂蛋白胆固醇(low density lipoprotein-cholesterol,HDL-C)、低密度脂蛋白胆固醇(low density lipo-protein-cholesterol ,LDL-C)的检测。采用基质支持的激光释放/电离飞行时间质谱分析检测rs2228314多态性基因型。在显性模型下进行统计学分析,采用t检验比较不同基因型组间血脂水平(计量资料)的差异,采用Logistic回归分析rs2228314多态性与血脂水平的异常(分类资料)和肥胖的关系。结果:rs2228314多态性GC/CC基因型组的HDL-C水平低于GG纯合子,差异有统计学意义(0.10±0.35 vs.0.14±0.36,P=0.020),在显性模型下,调整研究样本、性别和年龄后,rs2228314多态性与 HDL-C 水平的异常相关( OR =1.400,95% CI:1.027~1.907, P =0.033)。调整研究样本、性别、年龄和HDL-C 水平后,rs2228314多态性与肥胖的相关性无统计学意义(OR =1.178,95%CI:0.971~1.430, P=0.096)。结论:携带SREBP2基因rs2228314多态性GC/CC基因型的儿童青少年发生HDL-C水平异常的风险高于GG基因型携带者。Objective:To study the relationship between rs 2228314 polymorphism in sterol regulatory element binding protein 2 gene (SREBP2) and obesity, serum lipid levels in children and adolescents . Methods:In our study , 2 030 children and adolescents aged from 7 to 18 years participated .Anthropo-metric measurements, including height and weight, were performed.Their serum total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol ( HDL-C) were detected .The matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS ) was used to detect rs2228314 genotypes.Results: The GC/CC genotypes of rs2228314 polymorphisms had lower HDL-C levels than GG genotype [(0.10 ±0.35) mmol/L vs. (0.14 ±0.36) mmol/L, P=0.020].The rs2228314 polymorphism was associated with the abnormal HDL-C level under the dominant model after adjustment for study samples , sex and age ( OR=1.400, 95%CI:1.027-1.907, P=0.033).The rs2228314 polymorphism was not associated with obesity un-der the dominant model after adjustment for study samples , sex, age and HDL-C level ( OR=1.178, 95%CI: 0 .971 -1 .430 , P =0 .096 ) . Conclusion: The GC/CC genotype carriers of SREBP2 rs2228314 polymorphism have higher risk of abnormal HDL-C level than the individuals with GG geno-type among children and adolescents .

关 键 词:胆固醇调节元件结合蛋白质2 多态现象 遗传 肥胖症 血脂异常 儿童 

分 类 号:R181.33[医药卫生—流行病学]

 

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