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肿瘤坏死因子 G252A C804A基因多态性与脑梗死的关系 |
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bsp;respectively; there were statistically significant differences in the distributions of the genotypes (P<0.05) and the allele frequencies (P<0.05) between the two groups; the risk of suffering from CI in those of AA and CA genotypes was 2.101 times that in those of CC genotype (OR=2.011, 95%CI:1.048~2.954). There was no significant difference in the distribution of the genotype of G252A between the two groups (P>0.05).Conclusion The single nucleotide polymorphism at position 804 in the exon 3 of TNFbeta gene is associated with CI and the allele A may be a risk factor for CI.The polymorphism of G252A may not play an important role in the pathogenesis of CI.
Key words: Cerebral infarction; Tumor necross factor β; Polymerase chain reaction; Gene polymorphism
脑梗死(cerebral infarction,CI)是一种常见的动脉血栓性疾病, 其血栓形成的机制复杂,可能与多种基因的多态性相关[1]。目前,炎症反应在血栓中的作用已引起广泛注意。血栓形成常伴有炎症反应,炎症部位易形成血栓。肿瘤坏死因子β(tumor necrosis factorβ,TNFβ)是一种促炎因子,在炎症反应和免疫调节中起着重要作用。近年来,国外一些研究发现,TNFβ基因G252A和C804A多态性可影响TNFβ的表达水平, 并可能与动脉血栓性疾病有关[2,3]。国内也有作者对TNFα及TNFβ基因某些位点的多态性与冠心病及CI易感性进行了初步研究,但结果与国外报道不尽一致[4,5]。为了解中国人TNFβ基因G252A和C804A多态性与CI的关系,作者对88例CI患者及81例正常人TNFβ基因多态性进行分析,以探讨中国人TNFβ基因多态性在CI患者发病中的作用及临床意义。
1 对象和方法
1.1  上一页 [1] [2] [3] [4] [5] [6] 下一页 上一个医学论文: 妊娠期糖尿病患者血小板参数变化意义的探讨 下一个医学论文: 急性脑梗死患者中性粒细胞活化的研究
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