检验医学 ›› 2025, Vol. 40 ›› Issue (6): 571-575.DOI: 10.3969/j.issn.1673-8640.2025.06.010

• 论著 • 上一篇    下一篇

细胞固相芯片法中性粒细胞CD64绝对数检测在细菌感染诊断中的价值

尹良平1, 原永明2, 璩斌3(), 李文娜4, 张舒4   

  1. 1.上海市徐汇区老年护理医院检验科,上海 200231
    2.上海市徐汇区大华医院检验科,上海 200237
    3.上海交通大学医学院附属瑞金医院检验科,上海 200025
    4.上海汇中细胞生物科技有限公司,上海 201619
  • 收稿日期:2024-10-10 修回日期:2025-04-07 出版日期:2025-06-30 发布日期:2025-07-01
  • 通讯作者: 璩斌
  • 作者简介:璩 斌,E-mail:QB3793@163.com
    尹良平,男,1983年生,主管技师,主要从事临床检验工作。

Role of neutrophil CD64 absolute value determined by cell solid-phase chip method in bacterial infectious disease diagnosis

YIN Liangping1, YUAN Yongming2, QU Bin3(), LI Wenna4, ZHANG Shu4   

  1. 1. Department of Clinical Laboratory,Shanghai Xuhui District Elderly Care Hospital,Shanghai 200231,China
    2. Department of Clinical Laboratory,Shanghai Xuhui Dahua Hospital,Shanghai 200237,China
    3. Department of Clinical Laboratory,Ruijin Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China
    4. Shanghai Huizhong Cell Biology Science and Technology Co. ,Ltd.,Shanghai 201619,China
  • Received:2024-10-10 Revised:2025-04-07 Online:2025-06-30 Published:2025-07-01
  • Contact: QU Bin

摘要:

目的 探讨采用细胞固相芯片法检测中性粒细胞CD64(nCD64)绝对数在细菌感染诊断中的应用价值。方法 选取2024年1—9月上海交通大学医学院附属瑞金医院细菌感染患者120例(细菌感染组)、病毒感染患者60例(病毒感染组)、健康体检者92名(正常对照组)。采用细胞固相芯片法检测外周血nCD64绝对数,同时检测白细胞(WBC)计数、降钙素原(PCT)、C反应蛋白(CRP)。采用受试者工作特征(ROC)曲线评价各项指标诊断细菌感染的效能。结果 细菌感染组nCD64绝对数、WBC计数、PCT、CRP水平均高于病毒感染组和正常对照组(P<0.05)。病毒感染组WBC计数低于正常对照组(P<0.05)。病毒感染组和正常对照组nCD64绝对数、PCT、CRP水平差异均无统计学意义(P>0.05)。nCD64绝对数、WBC计数、PCT、CRP鉴别诊断细菌感染的曲线下面积(AUC)分别为 0.934、0.868、0.868、 0.856。nCD64绝对数鉴别细菌感染和非细菌感染的最佳临界值为892 个·μL-1,敏感性为88.3%,特异性为92.8%。nCD64绝对数的诊断细菌感染的效能显著高于WBC计数、PCT和CRP(P<0.05)。结论 nCD64绝对数可作为细菌感染的辅助诊断指标之一。采用细胞固相芯片法检测外周血nCD64绝对数操作简便、成本低廉,可在基层医院推广应用。

关键词: 中性粒细胞CD64, 细胞固相芯片法, 白细胞计数, 降钙素原, C反应蛋白, 细菌感染

Abstract:

Objective To investigate the role of absolute value of neutrophil CD64(nCD64) determined by cell solid-phase chip method in the diagnosis of bacterial infectious diseases. Methods Totally,120 bacterial infection patients(bacterial infection group),60 viral infection patients(viral infection group) and 92 healthy subjects(healthy control group) were enrolled from Ruijin Hospital,Shanghai Jiao Tong University School of Medicine from January 2024 to September 2024. The absolute value of nCD64 was determined using cell solid-phase chip method. White blood cell(WBC)count,procalcitonin(PCT) and C-reactive protein(CRP) were determined as well. Receiver operating characteristic(ROC) curve was used to evaluate the efficacy of the 4 indicators in diagnosing bacterial infectious diseases. Results The levels of absolute value of nCD64,WBC count,PCT and CRP in bacterial infection group were higher than those in viral infection group and healthy control group(P<0.05). WBC count in viral infection group was lower than that in healthy control group(P<0.05). There was no statistical significance in the absolute value of nCD64,PCT and CRP between viral infection group and healthy control group(P>0.05). The areas under curves(AUC) of the absolute value of nCD64,WBC count,PCT,CRP were 0.934,0.868,0.868 and 0.856 for the differential diagnosis of bacterial infection and non-bacterial infection,respectively. The optimal cut-off value,sensitivity and specificity of the absolute value of nCD64 for diagnosing bacterial infectious diseases were >892 μL-1,88.3% and 92.8%,respectively. The diagnostic efficacy of the absolute value of nCD64 for bacterial infectious diseases was better than WBC count,PCT and CRP(P<0.05). Conclusions The absolute value of nCD64 can be used as one of the auxiliary diagnostic indicators for bacterial infection. Using cell solid-phase chip method to determine the absolute value of nCD64 in peripheral blood is easy to operate and cost-effective,which can be promoted and applied in primary hospitals.

Key words: Neutrophil CD64, Cell solid-phase chip method, White blood cell count, Procalcitonin, C-reactive protein, Bacterial infection

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