检验医学 ›› 2026, Vol. 41 ›› Issue (7): 637-642.DOI: 10.3969/j.issn.1673-8640.2026.07.004

• 论著 • 上一篇    下一篇

舒巴坦/度洛巴坦和依拉环素对不动杆菌属的体外抗菌活性

高宏志1, 曹锦楠2, 黄声雷3(), 周春妹3, 周佳烨3, 王蓓丽3, 潘柏申3, 郭玮3   

  1. 1 复旦大学附属中山医院厦门医院检验科福建 厦门 361015
    2 上海市老年医学中心检验科上海 201100
    3 复旦大学附属中山医院检验科上海 200032
  • 收稿日期:2025-08-21 修回日期:2025-12-02 出版日期:2026-07-30 发布日期:2026-07-23
  • 通讯作者: 黄声雷,E-mail:huang.shenglei@zs-hospital.sh.cn
  • 作者简介:高宏志,男,1992年生,学士,初级技师,主要从事病原体的鉴定和耐药机制研究。
  • 基金资助:
    上海市科学技术委员会应急科技攻关基金项目(20411950500);白求恩基金中青年医生优才培养计划项目(BCF-SY-0311-20190807-07);病原微生物生物安全国家重点实验室开放基金项目(SKLPBS2144)

In vitro antibacterial activity of sulbactam/durlobactam and eravacycline against Acinetobacter

GAO Hongzhi1, CAO Jinnan2, HUANG Shenglei3(), ZHOU Chunmei3, ZHOU Jiaye3, WANG Beili3, PAN Baishen3, GUO Wei3   

  1. 1 Department of Clinical LaboratoryXiamen Hospital,Zhongshan Hospital,Fudan UniversityXiamen 361015,Fujian, China
    2 Department of Clinical LaboratoryShanghai Geriatrics CenterShanghai 201100, China
    3 Department of Clinical LaboratoryZhongshan Hospital,Fudan UniversityShanghai 200032, China
  • Received:2025-08-21 Revised:2025-12-02 Online:2026-07-30 Published:2026-07-23

摘要:

目的 分析舒巴坦/度洛巴坦(SUL/DUR)和依拉环素(ERV)对不动杆菌属的体外抗菌活性。方法 收集复旦大学附属中山医院2025年2—3月临床分离的124株不动杆菌属细菌,采用基质辅助激光解吸电离飞行时间质谱进行菌种鉴定。采用全自动细菌鉴定药敏仪进行体外药物敏感性试验。采用肉汤微量稀释法和纸片扩散法检测常规抗菌药物对鲍曼不动杆菌(AB)的最小抑菌浓度(MIC)。采用免疫层析法进行耐SUL/DUR不动杆菌属耐药基因分型。采用傅里叶红外光谱对SUL/DUR非敏感的AB进行同源性分析。采用非加权组平均法模型进行层次聚类分析,并生成树状图。结果 124株不动杆菌属细菌中,有84株为AB。84株AB对替加环素(TGC)、ERV、多黏菌素E(COL)、SUL/DUR的耐药率分别为2.38%、3.57%、3.57%、16.67%;16株SUL/DUR非敏感AB中,有12株产blaNDM型β-内酰胺酶;耐碳青霉烯鲍曼不动杆菌(CRAB)分离率为97.61%(82/84)。40株其他不动杆菌属细菌对TGC、ERV的耐药率均为0,对COL、SUL/DUR的耐药率均为2.5%。AB对SUL/DUR的MIC50和MIC90分别为2和64 μg·mL-1,对ERV的MIC50和MIC90分别均为0.25和0.50 μg·mL-1;其他不动杆菌属细菌对SUL/DUR的MIC50和MIC90分别为1和4 μg·mL-1,对ERV的MIC50和MIC90分别为0.32和0.64 μg·mL-1结论 SUL/DUR和ERV对不动杆菌属细菌具有较好的体外抗菌活性。

关键词: 鲍曼不动杆菌, 舒巴坦/度洛巴坦, 依拉环素, 体外抗菌活性

Abstract:

Objective To evaluate the in vitro antibacterial activity of sulbactam/durlobactam(SUL/DUR)and eravacycline(ERV)against Acinetobacter. Methods A total of 124 Acinetobacter isolates isolated from clinical specimens at Zhongshan Hospital of Fudan University from February to March 2025 were collected. The species were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The in vitro drug susceptibility was determined by automated bacterial susceptibility testing system. The minimum inhibitory concentrations(MIC)of conventional antibacterial agents for Acinetobacter baumannii(AB)were determined by broth microdilution and disk diffusion methods. The drug resistance genotypes of SUL/DUR-resistant Acinetobacter were determined by immunochromatography. Fourier transform infrared spectroscopy was used for homology analysis of SUL/DUR non-susceptible Acinetobacter. Hierarchical cluster analysis was performed using the unweighted group average method model,and a dendrogram was generated. Results The 84 of 124 Acinetobacter isolates were AB. The drug resistance rates of 84 AB isolates to tigecycline(TGC),ERV,colistin(COL)and SUL/DUR were 2.38%,3.57%,3.57% and 16.67%,respectively. Among the 16 SUL/DUR non-sensitive AB isolates,12 of them were blaNDM-producing beta-lactamases. The isolation rate of carbapenem-resistant Acinetobacter baumannii(CRAB)was 97.61%(82/84). The drug resistance rates of 40 other Acinetobacter species to TGC,ERV,COL and SUL/DUR were 0,0,2.5% and 2.5%,respectively. Additionally,the MIC50 and MIC90 of SUL/DUR against AB were 2 and 64 μg·mL-1,respectively,and those of ERV were 0.25 and 0.50 μg·mL-1,respectively. The MIC50 and MIC90 of SUL/DUR against other Acinetobacter species were 1 and 4 μg·mL-1,respectively,and those of ERV were 0.32 and 0.64 μg·mL-1,respectively. Conclusions SUL/DUR and ERV have good in vitro antibacterial activity against Acinetobacter.

Key words: Acinetobacter baumannii, Sulbactam/durlobactam, Eravacycline, In vitro antibacterial activity

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