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Cui X, Liu S, Jin Y, Li M, Shao C, Yu H, Zhang Y, Liu Y, Wang Y. Rapid determination of antibiotic susceptibility of clinical isolates of Escherichia coli by SYBR green I/Propidium iodide assay. Sci Rep 2024; 14:18782. [PMID: 39138327 PMCID: PMC11322298 DOI: 10.1038/s41598-024-69286-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024] Open
Abstract
Infections caused by pathogenic Escherichia coli are a serious threat to human health, while conventional antibiotic susceptibility tests (AST) have a long turn-around time, and rapid antibiotic susceptibility methods are urgently needed to save lives in the clinic, reduce antibiotic misuse and prevent emergence of antibiotic-resistant bacteria. We optimized and validated the feasibility of a novel rapid AST based on SYBR Green I and Propidium Iodide (SGPI-AST) for E. coli drug susceptibility test. A total of 112 clinical isolates of E. coli were collected and four antibiotics (ceftriaxone, cefoxitin, imipenem, meropenem) were selected for testing. Bacterial survival rate of E. coli was remarkably linearly correlated with S value at different OD600 values. After optimizing the antibiotic concentrations, the sensitivity and specificity of SGPI-AST reached 100%/100%, 97.8%/100%, 100%/100% and 98.4%/99% for ceftriaxone, cefoxitin, imipenem and meropenem, respectively, and the corresponding concordances of the SGPI-AST with conventional AST were 1.000, 0.980, 1.000 and 0.979, respectively. The SGPI-AST can rapidly and accurately determine the susceptibility of E. coli clinical isolates to multiple antibiotics in 60 min, and has the potential to be applied to guide the precise selection of antibiotics for clinical management of infections caused by pathogenic E. coli.
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Affiliation(s)
- Xianglun Cui
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Institute of Clinical Microbiology, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - Shuyue Liu
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yan Jin
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Mingyu Li
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chunhong Shao
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Institute of Clinical Microbiology, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - Hong Yu
- Department of Clinical Laboratory of Zhucheng People's Hospital, Weifang, Shandong, China
| | - Ying Zhang
- Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China.
| | - Yun Liu
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - Yong Wang
- Department of Clinical Laboratory of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
- Institute of Clinical Microbiology, Shandong Academy of Clinical Medicine, Jinan, Shandong, China.
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Pathak R, Vergis J, Chouhan G, Kumar M, Malik SS, Barbuddhe SB, Rawool DB. Comparative efficiency of carbohydrates on the biofilm‐forming ability of enteroaggregative
Escherichia coli. J Food Saf 2022. [DOI: 10.1111/jfs.12971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Richa Pathak
- Division of Veterinary Public Health ICAR‐Indian Veterinary Research Institute Bareilly Uttar Pradesh India
- Department of Biotechnology, School of Engineering and Technology Sharda University Greater Noida Uttar Pradesh India
| | - Jess Vergis
- Division of Veterinary Public Health ICAR‐Indian Veterinary Research Institute Bareilly Uttar Pradesh India
| | - Garima Chouhan
- Department of Biotechnology, School of Engineering and Technology Sharda University Greater Noida Uttar Pradesh India
| | - Manesh Kumar
- Division of Veterinary Public Health ICAR‐Indian Veterinary Research Institute Bareilly Uttar Pradesh India
| | - Satyaveer Singh Malik
- Division of Veterinary Public Health ICAR‐Indian Veterinary Research Institute Bareilly Uttar Pradesh India
| | | | - Deepak Bhiwa Rawool
- Division of Veterinary Public Health ICAR‐Indian Veterinary Research Institute Bareilly Uttar Pradesh India
- ICAR‐National Research Centre on Meat Chengicherla Telangana India
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