T细胞受体α链稳定区基因-575A/G与原发抗中性粒细胞抗体相关性小血管炎的关联分析  被引量:3

Relationship of TCRCα-575A/G polymorphism with anti-neutrophil antibody associated vasculitis in Chinese Hart population.

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作  者:薛超[1] 张益民[2] 廖蕴华[1] 杨桢华[1] 黄莉[1] 许佳[3] 项新[3] 

机构地区:[1]广西医科大学第一附属医院肾内科,南宁530021 [2]中山大学第二附属医院肾内科 [3]广西医科大学研究生院

出  处:《中国综合临床》2009年第11期1129-1132,共4页Clinical Medicine of China

基  金:广西科学基金资助项目(桂科青0728060)

摘  要:目的探讨T细胞受体α链稳定区(TCRCa)基因-575A/G多态性与汉族人群原发抗中性粒细胞抗体(ANCA)相关性小血管炎的关联关系。方法86例原发ANCA相关性小血管炎汉族患者与196例汉族健康人作对照,PCR-RFLP鉴定其TCRCα-575A/G基因型,进行病例-对照研究与临床分析。结果86例患者中,TCRCα基因.575A/G存在AA、AG、GG3种基因型和A、G2种等位基因,与正常对照组相比,分布频率差异均无统计学意义(P均〉0.05);TCRCα基因-575A/G基因型不同的患者组(AA组、AG组、GG组)相比,在收缩压[(127.47±24.18)、(124.11±25.21)、(148.92±19.23)mmHg]、舒张压[(75.35±14.12)、(74.50±13.01)、(85.46±9.40)mmHg]、红细胞数[(3.41±1.01)×10^9/L、(3.46±1.04)×10^9/L、(2.68±0.67)×10^9/L]、血红蛋白水平[(90.45±20.69)、(100.66±29.80)、(77.61±15.81)g/L]方面,差异均有统计学意义(P均〈0.05),GG基因型患者组有较高的血压和较重的贫血程度(P均〈0.05);平均(16.0±36.8)个月的随防,慢性肾功能衰竭组与与肾功能正常组相比较,3种基因型和两类等位基因的分布频率差异均无统计学意义(P均〉0.05)。结论汉族人群中,TCRCα基因-575A/G多态性可能和ANCA相关性小血管炎的遗传易感性不相关;与慢性肾功能衰竭的发生不相关;可能与临床上血压水平和贫血程度相关,G等位基因的患者,可能发生较高的血压、贫血程度。Objective To investigate the relationship of TCRCα-575A/G polymorphism with anti-neutrophil antibody(ANCA) associated vasculitis in Chinese Han population. Methods 86 cases of ANCA associated vasculitis in Chinese Han population and 196 healthy subjects were enrolled. TCRCα-575A/G was genotyped by PCR-restriction fragment length polymorphism (PCR-RFLP) assay. Case-control study was performed. Results No significant difference was found in either genotype distribution(AA,AG,GG) or allele frequencies between 86 patients and healthy subjects (P 〉 0.05 ) ;But significant differences between AA group, AG group, and GG group in systolic pressure[ ( 127.47 ±24.18) ,( 124.11 ±25.21 ), ( 148.92 ± 19.23 )mm Hg] ,diastolic pressure [ (75.35 ± 14.12), (74.50 ± 13.01 ), ( 85.46 ± 9.40) mm Hg ], red blood cell count [ (3.41 ± 1.01 ) ×10^9/L, (3.46 ± 1.04)×10^9/L, (2.68 ± 0.67 ) ×10^9/L ] and hemoglobin [ ( 90. 45 ± 20.69 ), ( 100.66 ± 29.80), (77.61 ±1 5.81 ) g/L (P 〈 0.05 for each) were found. The patients in GG group had higher blood pressure and more severe anaemia ; By following the patients about (16.0 ± 36.8 ) months, no statistics significance was found between groups with and without chronic renal failure in distributions and genetypes of TCRCα-575A/G ( P 〉 0. 05 ). Conclusions In Chinese Hart population ,TCRCα-575A/G polymorphism might not be related to genetic susceptibility and chronic renal failure of ANCA associated vasculitis ; but G allele might be associated with more serious anaemia and hypertension.

关 键 词:原发抗中性粒细胞抗体相关性小血管炎 T细胞受体 多态性 单核苷酸 

分 类 号:R593.9[医药卫生—内科学]

 

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