过敏性哮喘患儿的甲肝病毒暴露和TIM-1的关系
2012/10/11
摘要
背景:甲肝病毒(HAV)报告基因(TIM-1)多态性在哮喘和自身免疫性疾病中起到了重要作用。
目的:在中国西南地区分析TIM-1多态性和HAV感染与儿童期过敏性哮喘的关系。
方法:研究HAV报告基因启动子区TIM-1外显子4(157insMTTTVP)和2个多态性位点(-416G>C和-1454G>A)。采用PCR检测579名哮喘患儿和对照者三个多态性位点的基因型。在进行分层分析的病例-对照研究中,确定HAV感染状态。
结果:HAV 暴露与儿童期过敏性哮喘相关(OR = 0.181,95% CI 0.126-0.260, P<0.001)。-416G>C多态性与哮喘相关(OR = 1.384, 95% CI 1.148-1.669, P<0.001),但外显子4的插入变异体157delMTTTVP和-1454G>A多态性与哮喘无关。
结论:结果显示,TIM-1基因的-416G>C多态性与儿童期过敏性哮喘相关,这为更好的了解中国西南地区15岁以下儿童过敏性哮喘致病原因提供了基础。
(苏楠 审校)
J Asthma. 2012 Sep;49(7):697-702. Epub 2012 Aug 3.
Association of Hepatitis A Exposure and TIM-1 with Childhood Allergic Asthma.
Chen JP, Zhao WL, He NH, Gui Q, Xiong JP, Zhou HM, Wang Y, Chen S, Zhou P.
Source
Department of Pediatrics, Southwest Hospital, The Third Military Medical University , Chongqing 400038 , China.
Abstract
BACKGROUND:Hepatitis A virus (HAV) receptor (TIM-1) polymorphism plays an important role in asthma and autoimmune diseases.
OBJECTIVE:To analyze the association of TIM-1 polymorphism and HAV infection with childhood allergic asthma in Southwest China.
METHODS:TIM-1 exon 4 (157insMTTTVP) and two polymorphism loci, -416G>C and -1454G>A, in the HAV receptor promoter region were studied. Polymerase chain reaction (PCR) was used to test the genotypes of three polymorphism loci among 579 cases of asthma and 524 controls. The HAV infection status was determined in a case-control study with stratified analysis.
RESULTS: HAV exposure associated with childhood allergic asthma in the study population was compared with controls (odds ratio (OR) = 0.181, 95% confidence interval (CI) 0.126-0.260, p < .001). The -416G>C polymorphism was associated with asthma (OR = 1.384, 95% CI 1.148-1.669, p < .001), but the insertion variant 157delMTTTVP of exon 4 and the -1454G>A polymorphism were not.
CONCLUSION: Our results indicated that the -416G>C polymorphism of the TIM-1 gene is associated with childhood allergic asthma, providing a better understanding of the pathogenesis of the allergic asthma among children aged below 15 years in Southwest China.
J Asthma. 2012 Sep;49(7):697-702. Epub 2012 Aug 3.
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