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云南地区HLA-G基因3’非翻译区三个位点多态性与系统性红斑狼疮的关联研究 被引量:3

Association of three polymorphisms in the 3' untranslated region of the HLA-G gene with systemic lupus erythematosus in a population from Yunnan
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摘要 目的探讨云南地区人群系统性红斑狼疮(systemic lupus erythematosus,SLE)与HLA-G基因3qE翻译区(3’untranslated region,3’UTR)3个位点(+296014bp插入/缺失、+3035C/T和+3142C/G)多态性的关联性。方法应用DNA序列测序法对云南地区206例SLE患者及212名健康对照者的HLA-G基因上述3个多态性位点进行基因分型。结果HLA-G3’UTR区14bp插入/缺失和+3142c/G等位基因和基因型频率在SLE组和对照组间的差异均无统计学意义(P〉0.05),+3035T等位基因在SLE组的频率显著高于对照组,差异有统计学意义(P=0.002,OR=1.604,95%CI:1.186~2.169)。在显性遗传模式下,SLE组中(CT+TT)的OR值为2.004(95%CI:1.345~2.987,P=0.0006)。结论HLA—G14bp插入/缺失和+3142c/G多态性与云南地区人群SLE易感性无显著相关性,而+3035C/T多态性与云南地区系统性红斑狼疮易感性相关,+3035T等位基因可能是云南地区SLE发生的危险因素。 Objective To assess the association of three polymorphisms (14-bplNS/DEL, +3035C/ T and + 3142C/G) in the 3' untranslated region (3' UTR) of HLA-G gene and systemic lupus erythematosus (SLE) in Yunnan. Methods A case-control study has been carried out on 206 SLE patients and 212 healthy controls. Genotypes of 14-bpINS/DEL (rs1704), +3035C/T (rs17179108) and +3142C/ G (rs1063320) loci of 3'UTR of the HLA-G gene were determined with DNA sequencing. Results Allelic and genotypic frequencies of 14-bpINS/DEL and + 3142C/G did not differ significantly between the two groups (P〉0.05). The frequencies of +3035T allele was significantly higher in the SLE group compared with the control group (P〈0. 01, OR : 1. 604, 95% CI: 1. 186-2. 169). With a dominant inheritance model, the odd ratio of dominant genotype (CT+TT) was 2. 004 (95%CI: 1. 345-2. 987, P=O. 0006) in the SLE group. Conclusion The 14-bpINS/DEL and + 3142C/G polymorphisms in the 3' UTR of the HLA-G gene are not associated with susceptibility to SLE in Yunnan, whilst the T allele of +3035C/T may be a risk factor for SLE.
出处 《中华医学遗传学杂志》 CAS CSCD 北大核心 2014年第2期228-232,共5页 Chinese Journal of Medical Genetics
基金 国家高技术研究发展计划(863)项目(2012AA021802)
关键词 HLA—G基因 系统性红斑狼疮 关联分析 多态性 HLA-G gene Systemic lupus erythematosus Association analysis Polymorphism
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