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作 者:张鹏[1] 唐芳[2] 周承新[2] 宣伟军[3] 万裴琦[2] 吴继周[2] 黄力毅[2]
机构地区:[1]广西医科大学第五附属医院感染性疾病科,柳州545006 [2]广西医科大学第一附属医院感染性疾病科,南宁530021 [3]广西中医药大学,南宁530001
出 处:《广西医科大学学报》2013年第4期507-510,共4页Journal of Guangxi Medical University
基 金:广西科学基金资助项目(No.桂科自0728144)
摘 要:目的:探讨肿瘤坏死因子(TNF)-α基因启动子-308位点基因多态性与慢性乙型病毒性肝炎、乙型肝炎肝硬化、慢性重型乙型病毒性肝炎之间的关系。方法:以132例HBV慢性感染者(慢性乙型病毒性肝炎84例,乙型肝炎肝硬化28例和慢性重型乙型肝炎20例)作为病例组,以50例正常人作为健康对照组,采用聚合酶联反应—限制性片断长度多态性技术进行TNF-α-308位点基因型及等位基因的检测,观察其在不同临床类型慢性肝病患者及对照者中的分布频率。结果:TNF-α-308位点各基因型在慢性乙型病毒性肝炎、乙型肝炎肝硬化、慢性重型乙型肝炎以及健康对照组中的分布频率分别为:-308GG为78.0%(69/84)、89.3%(25/28)、90.0%(18/20)和94.0%(47/50);-308GA在各组分布为13.1%(11/84)、7.1%(2/28)、5%(1/20)和4.0%(2/50);-308AA在各组分布为4.8%(4/84)、3.6%(1/28)、5.0%(1/20)和2.0%(1/50),各病例组间的基因型分布频率与健康对照组比较差异无统计学意义(P>0.05)。各慢性肝病组及健康对照组中等位基因G分别占96.0%、88.7%、92.9%和92.5%;等位基因A分别占4.0%、11.3%、7.1%和7.5%,经统计学分析各慢性肝病组的等位基因分布频率与健康对照组比较差异无统计学意义(P>0.05)。结论:TNF-α-308位点基因多态性与HBV慢性感染后的不同慢性肝病似无明显关系。Objective: To determine whether the polymorphism of tumor necrosis factor α (TNF-α) promot-er region - 308G/A is associated with the outcomes of chronic hepatitis B virus ( HBV) infection. Methods : Through a restriction fragment length polymorphism (RFLP) assay of polymerase chain reaction (PCR) products, the single nucleotide polymorphism (SNP) with in TNF-α-308 site among 84 patients with chro-nic hepatitis B (CHB),28 patients with hepatic cirrhosis (HC) and 20 patients with chronic severe hepati-tis B (CSHB) as well as 50 healthy controls were analyzed. Results: The frequency of genotype -308GG in the patients with CHB, HC, CSHB and control group was 78. 0% (69/84), 89. 3% (25/28),90. 0% (18/20) and 94. 0% (47/50) , respectively. The frequency of genotype-308GA was 13. 1% (11/84),7. 1 % (2/28) , 5% (1/20) and 4. 0% (2/50),respectively. The frequency of genotype-308AA was 4. 8% (4/84), 3.6% (1/28),5.0% (1/20) and 2.0% (1/50),respectively. There was no significant difference in the genotype frequency of TNF-α-308 among the chronic HBV and control groups ( P05). No significant difference was found in allele frequency at TNF-α -308 positions ( P 〉〉0. 05). Conclusion: There might be no relationship between the polymorphism of gene encoding TNF-α-308 and the clinical types of patientswith chronic HBV infection.
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