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山东大学学报(医学版)

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PAI-1基因多态性与烧伤脓毒症的相关性

吴学田,王坤,孙树栋   

  1. 潍坊市人民医院烧伤科,山东 潍坊 261041
  • 收稿日期:2013-09-22 出版日期:2014-06-10 发布日期:2014-06-10
  • 通讯作者: 吴学田。E-mail: lvxiu0987@163.com
  • 基金资助:
    2003年潍坊市卫生科技发展计划第20号课题

Correlation between PAI-1 gene polymorphism and sepsis in severely burned patients

WU Xuetian, WANG Kun, SUN Shudong   

  1. Department of Burn, Weifang Peoples Hospital, Weifang 261041, Shandong, China
  • Received:2013-09-22 Online:2014-06-10 Published:2014-06-10

摘要: 目的   探讨血浆纤溶酶原激活物抑制剂-1(PAI-1)基因多态性与严重烧伤患者脓毒症的相关性。方法  选取142例烧伤面积>30%体表总面积的患者,其中烧伤后脓毒症患者82例(脓毒症组),烧伤后非脓毒症患者60例(对照组)。应用等位基因特异性扩增多聚酶联(AS-PCR)方法  对两组行PAI-1基因多态性分析。酶联免疫吸附试验(ELISA)方法  测定血浆PAI-l含量。结果  ①脓毒症组PAI-1 4G/4G基因型携带频率为43%,4G等位基因携带频率为62%;对照组PAI-1 4G/4G基因型携带频率为22%,4G等位基因携带频率为45%;两组比较差异有统计学意义(P<0.05)。②脓毒症组PAI-1抗原含量水平明显升高 (P<0.05)。③PAI-1基因4G纯合子血浆PAI-1抗原水平高于5G纯合子血浆PAI-1抗原水平(P<0.05)。结论   ① PAI-1基因启动子区4G/5G多态性可能是烧伤脓毒症易感的危险因素,4G纯合子是其高危因素;②烧伤脓毒症患者血浆PAI-1抗原水平升高。

关键词: 脓毒症, 纤溶酶原激活物抑制剂-1, 多态性, 基因, 烧伤

Abstract: Objective  To study the correlation between burn sepsis and 4G/5G polymorphism within the promoter region of plasminogen activator inhibitor-1 (PAI-1) gene in severely burned patients. Methods  A total of 142 patients with burn area larger than 30% of the total body surface area were collected. Peripheral blood samples were obtained from 82 patients with sepsis (the sepsis group) and 60 patients without sepsis (the control group). 4G/5G polymorphism of PAI-1 gene was determined by using allele sepcial polymerase chain reaction (AS-PCR) test. PAI-1 concentrations were measured by enzyme-linked immunosorbent assay (ELISA).  Results  The carrier frequency of 4G/4G genotype and the 4G allele frequency in the sepsis group were 43% and 62% respectively, which were significantly higher than that in the control group (P<0.05). Compared with the control group, PAI-1 concentrations in the sepsis group were significantly higher (P<0.05). Compared with the 5G/5G genotype, PAI-1 concentrations were significantly higher in the 4G/4G genotype (P<0.05). Conclusion  The 4G/5G polymorphism within the promoter region of  PAI-1 gene may be associated with the susceptibility of burn sepsis, and 4G/4G genotype may be the genetic risk factors of burn sepsis. The PAI-1 concentrations in serum are raised in patients with burn sepsis.

Key words: Polymorphism, Sepsis, Plasminogen activator inhibitor-1, Burn, Gene

中图分类号: 

  • R644
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