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中华危重症医学杂志(电子版) ›› 2026, Vol. 19 ›› Issue (04) : 299 -307. doi: 10.3877/cma.j.issn.1674-6880.2026.04.002

论著

外周血miR-125a-5p、miR-483-3p表达与急性心肌梗死患者心功能、缺血再灌注损伤及预后的相关性研究
王雪琪1, 安家瑶2,†(), 裴凡卜1   
  1. 1712100 陕西咸阳,杨凌示范区医院急诊科
    2712100 陕西咸阳,杨凌示范区医院心血管内一科
  • 收稿日期:2025-11-07 出版日期:2026-08-31
  • 通信作者: 安家瑶
  • 基金资助:
    2023年陕西省科技计划项目(2023-JC-QN-0269)

Correlation between peripheral blood miR-125a-5p and miR-483-3p expression and cardiac function, ischemia-reperfusion injury, and prognosis in patients with acute myocardial infarction

Xueqi Wang1, Jiayao An2,†(), Fanbu Pei1   

  1. 1Department of Emergency Medicine, Yangling Demonstration Zone Hospital, Xianyang 712100, China
    2First Department of Cardiology, Yangling Demonstration Zone Hospital, Xianyang 712100, China
  • Received:2025-11-07 Published:2026-08-31
  • Corresponding author: Jiayao An
引用本文:

王雪琪, 安家瑶, 裴凡卜. 外周血miR-125a-5p、miR-483-3p表达与急性心肌梗死患者心功能、缺血再灌注损伤及预后的相关性研究[J/OL]. 中华危重症医学杂志(电子版), 2026, 19(04): 299-307.

Xueqi Wang, Jiayao An, Fanbu Pei. Correlation between peripheral blood miR-125a-5p and miR-483-3p expression and cardiac function, ischemia-reperfusion injury, and prognosis in patients with acute myocardial infarction[J/OL]. Chinese Journal of Critical Care Medicine(Electronic Edition), 2026, 19(04): 299-307.

目的

探讨外周血微小RNA-125a-5p(miR-125a-5p)、miR-483-3p表达与急性心肌梗死(AMI)患者心功能、缺血再灌注损伤(IRI)及预后的关系。

方法

采用前瞻性队列研究设计,选取2020年9月至2023年9月杨凌示范区医院收治的136例AMI患者(AMI组)和136例健康志愿者(对照组),根据Killip分级将AMI患者分为Ⅰ ~ Ⅱ级组(85例)和Ⅲ ~ Ⅳ级组(51例),根据是否发生IRI将其为IRI组(63例)和非IRI组(73例)。AMI患者出院后随访1年,失访2例,134例AMI患者根据预后情况分为预后良好组(89例)和预后不良组(45例)。所有受试者入组24 h内检测外周血miR-125a-5p、miR-483-3p表达并比较组间差异。应用多因素logistic回归分析影响AMI患者预后的因素。基于多因素logistic回归分析结果构建联合预测模型,采用受试者工作特征(ROC)曲线分析各指标单独及联合预测模型对AMI患者预后的预测价值并行内部验证。

结果

AMI组患者外周血miR-125a-5p表达高于对照组,miR-483-3p表达低于对照组(P均< 0.05)。Ⅲ ~ Ⅳ级组患者外周血miR-125a-5p表达高于Ⅰ ~ Ⅱ级组,miR-483-3p表达低于Ⅰ ~ Ⅱ级组(P均< 0.05)。IRI组患者外周血miR-125a-5p表达高于非IRI组,miR-483-3p表达低于非IRI组(P均< 0.05)。Killip分级Ⅲ ~ Ⅳ级、IRI、高miR-125a-5p表达是AMI患者预后不良的危险因素,高miR-483-3p表达是其保护因素(P均< 0.05)。外周血miR-125a-5p、miR-483-3p、Killip分级Ⅲ ~ Ⅳ级及IRI单独预测AMI患者预后不良的曲线下面积(AUC)分别为0.785、0.804、0.670、0.664,联合预测模型的AUC为0.897。Delong检验显示,联合预测模型的AUC大于外周血miR-125a-5p、miR-483-3p、Killip分级Ⅲ ~ Ⅳ级及IRI单独预测的AUC(Z = 2.637、2.497、2.917、3.017,P = 0.010、0.014、0.004、0.003)。一致性指数为0.684,提示该模型预测结果与实际情况契合度较高。

结论

AMI患者外周血miR-125a-5p高表达和miR-483-3p低表达与心功能恶化、IRI以及预后不良有关,联合miR-125a-5p、miR-483-3p、Killip分级及IRI可有效预测AMI患者预后不良的发生风险。

Objective

To investigate the relationship between peripheral blood microRNA-125a-5p (miR-125a-5p) and miR-483-3p expression and cardiac function, ischemia-reperfusion injury (IRI), and prognosis in patients with acute myocardial infarction (AMI).

Methods

A prospective cohort study was conducted; 136 patients with AMI (AMI group) and 136 healthy volunteers (control group) admitted to Yangling Demonstration Zone Hospital from September 2020 to September 2023 were selected. Patients with AMI were divided into a group Ⅰ-Ⅱ (n = 85) and a group Ⅲ-Ⅳ (n = 51) by Killip class, and also divided into an IRI group (n = 63) and a non-IRI group (n = 73) by IRI occurrence. Patients with AMI were followed up for one year after discharge, with two patients lost. The remaining patients were divided into a good prognosis group (n = 89) and a poor prognosis group (n = 45) according to the prognosis. Peripheral blood miR-125a-5p and miR-483-3p expression levels in all subjects were detected within 24 hours after enrollment, and the differences between groups were compared. Multivariate logistic regression analysis was applied to discover the factors influencing the prognosis of patients with AMI. Based on the analysis results, a combined prediction model was constructed, and a receiver operating characteristic (ROC) curve was used to analyze the predictive value of each indicator individually and jointly in predicting the prognosis of patients with AMI, followed by internal validation.

Results

Peripheral blood miR-125a-5p expression was significantly higher and miR-483-3p expression was significantly lower in the AMI group than in the control group (both P < 0.05), in the group Ⅲ-Ⅳ than in the group Ⅰ-Ⅱ (both P < 0.05), and in the IRI group than in the non-IRI group (both P < 0.05). Killip class Ⅲ-Ⅳ, IRI, and high miR-125a-5p expression were independent risk factors for poor prognosis in patients with AMI, while high miR-483-3p expression was a protective factor (all P < 0.05). The area under the curve (AUC) of peripheral blood miR-125a-5p, miR-483-3p, Killip class Ⅲ-Ⅳ, and IRI for predicting poor prognosis in patients with AMI was 0.785, 0.804, 0.670, and 0.664, and the AUC of the combined prediction model was 0.897. The Delong test demonstrated that the AUC of the combined prediction model was higher than that of peripheral blood miR-125a-5p, miR-483-3p, Killip class Ⅲ-Ⅳ, and IRI alone (Z = 2.637, 2.497, 2.917, 3.017; P = 0.010, 0.014, 0.004, 0.003). The concordance index was 0.684, indicating that the model's predicted results were highly consistent with the actual situation.

Conclusion

High miR-125a-5p and low miR-483-3p expression in peripheral blood are associated with impaired cardiac function, IRI, and poor prognosis in patients with AMI; combining miR-125a-5p, miR-483-3p, Killip class, and IRI can effectively predicting the risk of poor prognosis in these patients.

表1 对照组健康志愿者和AMI组患者外周血miR-125a-5p、miR-483-3p表达水平比较( ± s)
表2 不同心功能分级AMI患者的外周血miR-125a-5p、miR-483-3p表达水平比较( ± s)
表3 IRI组和非IRI组AMI患者的外周血miR-125a-5p、miR-483-3p表达水平比较( ± s)
表4 不同预后AMI患者临床资料比较
表5 影响AMI患者预后不良的多因素logistic回归分析
图1 联合预测模型及各因子预测AMI患者预后的ROC曲线注:AMI.急性心肌梗死;ROC.受试者工作特征;miR-125a-5p.微小RNA-125a-5p;IRI.缺血再灌注损伤;圆点代表理论阈值点
表6 外周血miR-125a-5p、miR-483-3p、Killip分级Ⅲ ~ Ⅳ级、IRI及其联合预测AMI患者预后的价值分析
图2 AMI患者预后预测模型内部验证的校准曲线注:AMI.急性心肌梗死
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