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Yuan H, Xu J, Wang Y, Shi L, Dong Y, Liu F, Long J, Duan G, Jin Y, Chen S, Zhu J, Yang H. The longitudinal trend and influential factors exploring of global antimicrobial resistance in Klebsiella pneumoniae. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175357. [PMID: 39127203 DOI: 10.1016/j.scitotenv.2024.175357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 08/01/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
Klebsiella pneumoniae (Kp) is a human symbiotic opportunistic pathogen capable of causing severe hospital-based infections and community-acquired infections. The problem of antimicrobial resistance (AMR) has become increasing serious over time, posing a major threat to socio-economic and human development. In this study, we explored the global trend of AMR in 1786 strains of Kp isolated between 1982 and 2023. The number of antibiotic resistance genes (ARGs) in Kp increased significantly from 24.29 ± 5.44 to 32.42 ± 8.52 over time. Mobile genetic elements (MGEs) were responsible for the ARGs horizontal transfer of Kp strains. The results of structural equation modeling (SEM) indicated a strong association between the human development index and the increase of antibiotic consumption, which indirectly affected the occurrence and development of antibiotic resistance in Kp. The results of Generalized Linear Models (GLM) indicated that the influence of environmental factors such as temperature on the development of Kp resistance could not be ignored. Overall, this study monitored the longitudinal trend of antimicrobial resistance in Kp, explored the factors influencing antibiotic resistance, and provided insights for mitigating the threat of antimicrobial resistance.
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Affiliation(s)
- Haitao Yuan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jie Xu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Wang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Liqin Shi
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yuehan Dong
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Fang Liu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jinzhao Long
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Guangcai Duan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yuefei Jin
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Shuaiyin Chen
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jingyuan Zhu
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China.
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Fendukly F, Karlsson I, Hanson HS, Kronvall G, Dornbusch K. Patterns of mutations in target genes in septicemia isolates of Escherichia coli and Klebsiella pneumoniae with resistance or reduced susceptibility to ciprofloxacin. APMIS 2003; 111:857-66. [PMID: 14510643 DOI: 10.1034/j.1600-0463.2003.1110904.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Thirty-two Escherichia coli and 21 Klebsiella pneumoniae septicemia isolates with varying degrees of resistance to ciprofloxacin were analyzed for the presence of point mutations within the quinolone-resistance target genes. The number of mutations observed in the resistant isolates agreed with the level of ciprofloxacin resistance in both species. Such isolates were also resistant to nalidixic acid. Isolates with borderline susceptibility to ciprofloxacin, on the other hand, behaved differently in the two species. In E. coli all the isolates harbored at least one mutation and these isolates were also resistant to nalidixic acid, while no mutations were detected in the K. pneumoniae isolates, and susceptibility to nalidixic acid was unpredictable. Therefore, nalidixic acid cannot be used as a class representative. Time-kill curve studies on an isolate with borderline susceptibility from each species showed higher degrees of resistance to ciprofloxacin in comparison to that of the wild-type E. coli. A previously unreported parC mutation, S57-->T, was detected in a resistant E. coli isolate and might expand the QRDR of this gene. Normalized resistance interpretations of histograms confirmed the setting of microbiological zone breakpoints for ciprofloxacin testing.
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Affiliation(s)
- F Fendukly
- Clinical Microbiology-MTC, Karolinska Institute & Hospital, Stockholm, Sweden.
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