微小RNA-223及高迁移率族蛋白-1在脓毒症患儿中的表达及意义

摘要

Objective To investigate the changes of plasma microRNA-223(miR-223) and HMGB-1 in pediatric sepsis patients.Methods There were 49 children with sepsis enrolled in the study (sepsis group),severe sepsis group (n=25) and general group (n=24). Meanwhile, 50 healthy children (normal control group) were selected as control group. The expression levels of plasma miR-223and HMGB-1 (high mobility group box 1) were detected. The predictive values of miR-223and HMGB-1 in plasma of children with sepsis were evaluated by receiver operatingcharacteristic (ROC) curve.Results The plasma miR-223 and HMGB-1 expression levels in severe sepsis group and general group were up-regulated compared with those in the normal control group (F=63.02, 76.32,P<0.05). The area under ROC curve of miR-223,HMGB-1 predicting sepsis were 0.904 (95%CI 0.821-0.998), 0.748 (95%CI: 0.625-0.903). There was positive correlation between miR-223 and HMGB-1 (r=3.532, P<0.05). Conclusions The expression levels of plasma miR-223 in children with sepsis are signiifcantly up-regulated, which can be used as early diagnostic markers to relfect the severity of inlfammation in some degree.%目的 观察脓毒症患儿血浆中微小RNA-223(miR-223)及血清高迁移率族蛋白-1(HMGB-1)的表达.方法 选取49例脓毒症患儿,其中一般脓毒症24例、严重脓毒症25例,同时选取50例健康儿童作对照组,检测及比较血浆中miR-223及血清HMGB-1的表达水平.结果 严重脓毒症组、一般脓毒症组及对照组miR-223、HMGB-1表达的差异有统计学意义(F=63.02、76.32,P<0.05).miR-223和HMGB-1预测脓毒症的受试者工作特征曲线(ROC)下面积分别为0.904(95%CI:0.821-0.998),0.748(95%CI:0.625-0.903).miR-223与HMGB-1呈正相关(r=3.532,P<0.05).结论 脓毒症患儿外周血中miR-223及HMGB-1表达水平升高,两者联合检测对早期诊断脓毒症具有一定的临床价值.