实用肝脏病杂志 ›› 2017, Vol. 20 ›› Issue (1): 65-68.doi: 10.3969/j.issn.1672-5069.2017.01.017

• 非酒精性脂肪性肝病 • 上一篇    下一篇

转化生长因子α-435G/A基因多态性与非酒精性脂肪性肝病相互关系研究

邓家征, 申洋, 凌晶, 邓宏, 乐永红, 庄小芳   

  1. 618000 四川省德阳市人民医院消化内科(邓家征,申洋,凌晶,邓宏,);
    乌鲁木齐市新疆维吾尔自治区中医院肝病科(乐永红,庄小芳)
  • 收稿日期:2015-11-20 出版日期:2017-01-20 发布日期:2017-02-10
  • 作者简介:邓家征,男,43岁,大学本科,副主任医师。研究方向:消化内科常见病诊治研究。E-mail:254528425@qq.com

Transforming growth factor-α-435G/A gene polymorphism in patients with nonalcoholic fatty liver diseases

Deng Jiazheng1, Shen Yang1, Ling Jing1, Deng Hong1, Le Yonghong2, Zhuang Xiaofang2   

  1. 1 Department of Internal Medicine of Deyang People's Hospital,Deyang 618000,
    2 Department of Hepatology,Traditional Chinese Medicine Hospital,Urumqi 830000,Xinjiang Uygur Autonomous Region,China
  • Received:2015-11-20 Online:2017-01-20 Published:2017-02-10

摘要: 目的 研究转化生长因子(TGF)α-435G/A基因多态性与非酒精性脂肪性肝病(NAFLD)发病之间的相互关系。方法 选取我院2013年2月至2015年2月收治的NAFLD患者126例作为研究对象,同时以121例正常人作为对照组,采用限制性片段长度多态性(RFLP)分析法对上述研究对象外周血TGFα-435G/A基因进行多态性分析,所获得的数据采用SPSS软件进行分析。结果 NAFLD患者TGFα-435G/A基因型与等位基因的分布与对照组之间并无显著性差异,但是NAFLD患者中AA和GG基因型频率(39.2%和16.3%)和等位基因频率(61.4%和 38.6%)与对照组之间(分别为25.7%和 35.3%,和45.2%和54.8%)存在显著性差异(x2=15.43,P<0.05;x2=16.32,P<0.05);进一步的研究表明,不同程度NAFLD患者AA、AG、GG基因型频率和等位基因频率也存在一定的差异,即重度脂肪肝患者纯合体(AA和GG)比例相对较高。结论 TGFα-435G/A多肽位点基因突变与NAFLD患者发病之间存在一定的关联性,且不同基因型频率和等位基因频率与病情存在一定的相关性。

关键词: 非酒精性脂肪性肝病, 转化生长因子α, 基因多态性, 基因型, 等位基因

Abstract: Objective To study the transforming growth factor α(TGF-α)-435G/A gene polymorphism in patients with nonalcoholic fatty liver diseases(NAFLD). Methods 126 patients with NAFLD between February 2013 and February 2015 were recruited in our hospital,and 121 healthy individuals were also included at the same time as control. The polymorphism of TGF-α -435G/A gene in peripheral blood was analyzed by restriction fragment length polymorphism (RFLP) and the data obtained were processed by SPSS software. Results There was no significant difference neither in the TGFα -435G/A genotypes nor the distribution of TGFα-435G/A allele between patients with NAFLD and control(P>0.05),however,there were significant differences in AA and GG genotype frequency (39.2% vs. 25.7%,and 16.3% vs. 35.3%) and their allele frequency (61.4% vs. 45.2%,and 38.6% vs. 54.8%) between the two groups (x2=15.43,P<0.05;x2=16.32,P<0.05);And further study showed that patients with NAFLD with different steatosis had different AA GG,AG genotype frequencies and their allele frequencies with relatively high percentage of homozygote(AA,GG) in patients with severe fatty liver diseases. Conclusions There is a certain correlation between the gene mutation of TGFα-435G/A and the incidence of NAFLD,and the frequency of different genotypes and allele might be related to the severity of NAFLD.

Key words: Nonalcoholic fatty liver disease, Transforming growth factor α, Gene polymorphism, Genotype, Allele