Abstract

目的 探讨Toll-样受体4(TLR4)基因单核苷酸多态性(SNP)与中国汉族患者脓毒症发生风险、严重程度以及预后的相关性.方法 103例术后发生脓毒症的患者作为脓毒症组,另取术后未发生脓毒症患者114例为对照组,汉族,性别不限,年龄18 ~ 80岁.采集患者外周静脉血样,EDTA抗凝,采用基质辅助激光解吸附电离飞行时间质谱法检测TLR4基因SNPs rs10759932、rs11536889和rs2737190的基因型.采用logistic回归分析校正性别、年龄、基础疾病和手术方式的影响,评价SNPs基因型与脓毒症发生、器官功能障碍、脓毒性休克和死亡的相关性,计算比值比(OR)及95%可信区间(CI).结果 与对照组比较,脓毒症组rs10759932基因型频率构成比差异有统计学意义(P<0.05),其他2个SNPs基因型频率构成比差异无统计学意义(P>0.05).rs10759932与脓毒症的发生相关,其突变等位基因型(TC+ CC基因型)增加脓毒症发生风险(OR为1.86,95%CI为1.17~2.97,P<0.05).3个SNPs基因型与脓毒症相关器官功能障碍、脓毒性休克和死亡均无相关性(P>0.05).结论 TLR4基因rs10759932突变等位基因与中国汉族患者术后发生脓毒症的风险增加相关。

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