天津医药 ›› 2026, Vol. 54 ›› Issue (5): 469-472.doi: 10.11958/20252825

• 临床研究 • 上一篇    下一篇

精氨酸酶2在心脏手术相关急性肾损伤中的表达及临床意义

刘冰倩1(), 金鑫2, 钱小丽1△()   

  1. 1 苏北人民医院医学检验科(邮编 225000)
    2 苏北人民医院医学生物样本库(邮编 225000)
  • 收稿日期:2025-08-29 修回日期:2025-12-25 出版日期:2026-05-15 发布日期:2026-05-13
  • 通讯作者: E-mail: 234650547@qq.com
  • 作者简介:刘冰倩(1991),女,主管技师,主要从事医学检验方面研究。E-mail:bingqian1745@163.com
  • 基金资助:
    江苏省卫生健康委科研课题(Ym2024053)

Expression and clinical significance of serum arginase-2 in cardiac surgery associated acute kidney injury

LIU Bingqian1(), JIN Xin2, QIAN Xiaoli1△()   

  1. 1 Department of Medical Laboratory, Northern Jiangsu People's Hospital, Yangzhou 225000, China
    2 Department of BioBank, Northern Jiangsu People's Hospital, Yangzhou 225000, China
  • Received:2025-08-29 Revised:2025-12-25 Published:2026-05-15 Online:2026-05-13
  • Contact: E-mail: 234650547@qq.com

摘要:

目的 探讨心脏手术相关急性肾损伤(CAS-AKI)患者血清精氨酸酶2(Arg-2)的表达及其与临床预后的关系。方法 选取行心脏手术的患者112例,根据术后7 d内是否发生AKI分为AKI组(35例)和非AKI组(77例)。比较2组血清Arg-2水平的差异。分析血清Arg-2水平与肾功能指标的相关性,采用受试者工作特征(ROC)曲线分析血清Arg-2对CAS-AKI的辅助诊断价值,Logistic回归分析Arg-2对CAS-AKI发生的影响。结果 AKI组血清Arg-2水平高于非AKI组,血清Arg-2的表达水平与血肌酐(Scr)、中性粒细胞明胶酶相关脂质转运蛋白(NGAL)和尿肾损伤分子-1(Kim-1)呈正相关。血清Arg-2表达升高是CAS-AKI发生的独立危险因素(OR=1.045,95%CI:1.009~1.082)。血清Arg-2单独预测CAS-AKI具有较高的敏感度和特异度,分别为74.30%和66.20%,曲线下面积(AUC)为0.738(95%CI:0.636~0.840)。联合Kim-1、NGAL可以提高诊断CAS-AKI的敏感度和特异度(分别为85.70%和81.80%,AUC提升至0.886(95%CI:0.823~0.950)。结论 CAS-AKI患者血清Arg-2的表达水平升高,可作为CAS-AKI早期辅助诊断的标志物。

关键词: 急性肾损伤, 心脏外科手术, 精氨酸酶, 早期诊断

Abstract:

Objective To investigate the expression of serum arginase 2 (Arg-2) in patients with cardiac surgery-related acute kidney injury (CAS-AKI) and its relationship with clinical prognosis. Methods A total of 112 patients who underwent cardiac surgery were selected and divided into the acute kidney injury (AKI) group (35 cases) and the non-AKI group (77 cases) based on whether AKI occurred within 7 days after surgery. The differences in serum Arg-2 levels between the two groups were compared. The correlation between serum Arg-2 levels and renal function indicators was analyzed. The receiver operating characteristic (ROC) curve was used to analyze the auxiliary diagnostic value of serum Arg-2 for CAS-AKI. Logistic regression analysis was used to analyze the influence of Arg-2 on the occurrence of CAS-AKI. Results The serum Arg-2 level was higher in the AKI group than that in the non-AKI group. The expression level of serum Arg-2 was positively correlated with serum creatinine (Scr), neutrophil gelatinase-associated lipocalin (NGAL) and urinary kidney injury molecule-1 (Kim-1). The elevated expression of serum Arg-2 was an independent risk factor for the occurrence of CAS-AKI (OR=1.045,95%CI:1.009-1.082). Serum Arg-2 alone had a high sensitivity and specificity for predicting CAS-AKI, which were 74.30% and 66.20%, respectively. And the area under the curve (AUC) was 0.738 (95%CI: 0.636 - 0.840). Combining with Kim-1 and NGAL could improve the sensitivity and specificity of diagnosing CAS-AKI (85.70% and 81.80%), respectively, with an AUC increase to 0.886 (95%CI: 0.823 - 0.950). Conclusion The expression level of serum Arg-2 in patients with CAS-AKI is elevated, and it can be used as an early auxiliary diagnostic marker for CAS-AKI.

Key words: acute renal injury, cardiac surgical procedures, arginase, early diagnosis

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