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目的:评估尿基质金属蛋白酶组织抑制剂-2（tissue inhibitor of matrix metalloproteinase-2，TIMP-2）和尿胰岛素样生长因子结合蛋白-7（insulin-like growth factor binding protein-7，IGFBP-7）对于脓毒症致急性肾损伤（acute kidney injury，AKI）的早期诊断价值。方法:选取2017年9月至2019年6月收治于上海市东方医院急诊ICU和综合ICU的85例脓毒症患者，根据KIDGO诊断标准分为AKI组37例，非AKI组48例，同时设健康对照组20例。收集各组患者的一般临床资料，并于诊断脓毒症0 h、6 h、12 h、1 d、3 d、7 d各采集尿液标本10 mL，采用酶联免疫吸附试验（ELISA）检测各时间点尿TIMP-2和IGFBP-7的水平，绘制受试者工作特征(ROC)曲线，计算曲线下面积（AUC），评估尿TIMP-2和IGFBP-7对脓毒症AKI的早期诊断价值。结果:与对照组相比，脓毒症AKI组的尿TIMP-2和IGFBP-7水平在各时间点均明显升高，差异有统计学意义（n P<0.05），而脓毒症非AKI组则差异无统计学意义。AKI组尿TIMP-2和IGFBP-7水平在各时间点均明显高于非AKI组（n P<0.05）。ROC曲线分析显示，尿TIMP-2在1 d时AUC达到峰值为0.947，其敏感度、特异度分别为97.5%，81.2%，截断值为151.23 ng/ mL。尿IGFBP-7在12 h AUC达到峰值为1，其敏感度、特异度分别为100%，72.8%，截断值为14.91 ng/mL。尿TIMP-2×IGFBP-7联合检测的AUC在12 h时为1.00达到峰值，敏感度和特异度分别为98%和91.5%，截断值为2.09 [(ng/mL)n 2/1 000]。n 结论:尿TIMP-2和IGFBP-7的水平升高可以早期预测脓毒症AKI的发生，联合预测的价值优于单个检测。“,”Objective:To evaluate the early diagnostic value of tissue inhibitor of matrix metalloproteinase-2 (TIMP-2) and insulin-like growth factor binding protein-7 (IGFBP-7) in acute kidney injury induced by sepsis.Methods:A total of 85 sepsis patients admitted to the EICU and GICU in Shanghai East Hospital from September 2017 to June 2019 were divided into theAKI group (n n=37) and the non-AKI group (n n=48) according to KIDGO diagnostic criteria, and 20 healthy volunteers were served as the control group. The clinical data were recorded and samples of urine were collected at 0 h, 6 h, 12 h, 1 d, 3 d and 7 d post sepsis. The levels of TIMP-2 and IGFBP-7 in the urine were analyzed with ELISA at different time points. Based on the receiver operating characteristic curve (ROC) and the area under the curve (AUC), the early diagnostic value of urinary TIMP-2 and IGFBP-7 in sepsis-induced AKI patients was determined.n Results:Compared with the control group, the levels of TIMP-2 and IGFBP-7 of the AKI group were significantly higher at the above time points (n P<0.05), while those of the non-AKI group showed no significant differences. The levels of TIMP-2 and IGFBP-7 of the AKI group were significantly higher than the those of the non-AKI group (n P0.05).n Conclusions:Urine TIMP-2 and IGFBP-7 have early diagnostic value in sepsis-induced AKI. Besides, the combination of the two biomarkers have superior predictive value than each single of them.