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淋巴细胞特异性酪氨酸蛋白激酶基因多态性与阿尔茨海默病的相关性研究

Association between the polymorphisms of lymphocyte-specific protein tyrosine kinase(LCK) gene and AD
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摘要 目的探讨淋巴细胞特并性酪氨酸蛋白激酶(LCK)基因多态性、载脂蛋白E(apoE)基因多态性和阿尔茨海默病(AD)的相关性。方法用TaqMan—PCR法检测单核苷酸多态性(SNP),对380例日本人AD患者[包括327例迟发型AD(LOAD)与53例早发型AD(EOAD)]和380例非痴呆对照纽中。观察LCK基因及apoE基因的多态性分布,并分析其与AD的相关性。结果(1)LCK基因+6424A/G多态位点的G/G基因型息AD风险为非G/G型的1.41倍(95%CI=1.06~1.87),患LOAD风险为1.37倍(95%CI=1.02~1.85);(2)apoEε4基因携带者患AD风险为非apoEε4基因携带者的5.11倍(95%CI=3.63~7.19);(3)排除apoE基因型对AD风险的影响后,G/G基因型患AD风险为非G/G型的1.66倍(95%CI=1.16~2.38),患LOAD风险为1.64倍(95%CI=1.12~2.40),同时风险等位基因G与AD(P〈0.05)和LOAD(P〈0.05)具有相关性。结论LCK基因+6424A/G多态位点与AD风险的增加呈正性相关性,apoEε4增加了AD的发病风险,LCK是独立于APOE基因的又一新的风险基因。 Objective To explore the association of polymorphisms of lymphocyte-specific protein tyrosine kinase (LCK) and APOE in Alzheimer disease. Methods Using the single nucleotide poly morphism (SNP) and TaqMan-PCR method the polymorphism of LCK in intron 1 (+6424 A/G) and APOE were analyzed in 380 AD (including 327 late onset AD (LOAD) cases and 53 early-onset AD (EOAD) cases) and 380 non-demented controls in Japanese population. Results (1) The odds ratio (OR) for total AD associated with the G/G genotype was 1.41 (95% CI= 1.06-1.87) and that for LOAD was 1.37 (95%CI=1. 02-1. 85). (2) The odds ratio (OR) for total AD associated with APOE-ε4 was 5.11 (95%CI=3.63-7.19). (3)After excluding the effect of APOE-ε4, the G/G genotype also showed significant association with AD(OR=1. 66,95% CI=1. 16-2. 38) and 1.OAD (OR 1.64,95% CI =1.12-2.40) ;The risk allele-G is significantly associated with AD (P 〈 0.05) and LOAD (P 〈 0.05). Conclusions The polymorphism in intron 1 (+6424 A/G) of LCK was significantly associated with AD risk, APOE-ε4 conferred an increased risk for AD, LCK is a novel risk gene for AD regardless of the APOE genotype.
出处 《神经疾病与精神卫生》 2006年第1期5-8,共4页 Journal of Neuroscience and Mental Health
关键词 阿尔茨海默病 淋巴细胞特异性酪氨酸蛋白激酶 载脂蛋白E Alzheimer disease Lymphocyte-specific protein tyrosine kinase Apolipoprotein E
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