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作 者:陈雪融[1] 冯玉麟[1] 马玙[2] 张宗德[3] 李传友[3] 文富强[1] 唐晓燕[1] 苏智广[1]
机构地区:[1]四川大学华西医院呼吸内科,成都610041 [2]北京市结核病胸部肿瘤研究所结核科 [3]四川大学华西医院基础部,成都610041
出 处:《中华结核和呼吸杂志》2009年第5期360-364,共5页Chinese Journal of Tuberculosis and Respiratory Diseases
基 金:美国中华医学基金会项目资助项目(CMB06-834)志谢 成都市传染病院岳翼、李曦、吴桂辉主任协助收集资料
摘 要:目的研究溶质转运蛋白家族11成员1(SLC11A1)基因单倍型与中国藏族人群肺结核易感性的关系。方法2004年6月至2005年1月选取藏族肺结核患者140例,感染MTB未发病的藏族对照139例,用变性高效液相色谱检测和PCR限制性片段长度多态性分析方法对SLC11A1基因4种多态性[5′(GT)n、INT4、D53N和3′UTR]进行基因分型,用SHESIS软件进行连锁不平衡与单倍型分析,以χ^2检验研究基因单倍型与肺结核易感性的关系。结果病例组5′(GT)9/INT4 G单倍型频率(181/280,64.8%)显著低于对照组(217/276,78.1%),差异有统计学意义(χ^2=11.026,P〈0.01);病例组3′UTR TGTG/D543N G单倍型频率(215/280,76.6%)显著低于对照组(235/276,84.4%),差异有统计学意义(χ^2=6.547,P〈0.05);3′UTR TGTG缺失/D543N A单倍型频率(34/280,12.0%)显著高于对照组(18/276,6.4%),差异有统计学意义(χ^2=6.547,P〈0.05)。结论SLC11A1基因中5′(GT)/INT4 G、3′UTR TGTG/D543N G及其3′UTR TGTG缺失/D543N A单倍型与中国藏族人群肺结核易感性有关。Objective To investigate the association of the haplotype of the solute carrier family 11 member 1 ( SLC11A1 ) gene with susceptibility to pulmonary tuberculosis in Tibetans. Methods Four polymorphisms of the SLC11A1 gene [5′ (GT)n, INT4, D53N, and 3′UTR] were investigated by denaturalization high performance liquid chromatography and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 140 patients (the patient group) and 139 PPD-positive healthy controls (the control group) of the Tibetan nationality from June 2004 until January 2005. The relationship between the haplotype and susceptibility to pulmonary tuberculosis in these patients was studied by χ^2 test, and the linkage disequilibrium as well as the haplotype were analyzed by the SHESIS software. Results The haplotype frequencies of 5′( GT)9/INT4 G, 3′UTR TGTG/D543N G, 3′UTR TGTG del/D543N A were 64. 8% (181/280), 76. 6% (215/280), 12. 0% (34/280) among the patients and 78.1% (217/276), 84.4% (235/276), 6.4% (18/276) among the controls. 5′ ( GT)9/INT4 G, 3′ UTR TGTG/D543N G haplotypes rendered a lower risk (χ^2= 11. 026,P 〈 0. 01, χ^2= 6. 547, P 〈 0. 05, respectively) , but 3 ′UTR TGTG del/D543N A haplotype a higher risk ( χ^2 = 6. 547, P 〈 0.05 ) for tuberculosis. Conclusions 5′ (GT) 9/INT4 G, 3′UTR TGTG/D543N G and 3′UTR TGTG del/D543N A haplotypes of the SLC11A1 gene may be associated with the susceptibility of the Tibetan population to pulmonary tuberculosis.
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