The aim of this study was to determine the resistance mechanism of Pseudomonas aeruginosa to cefoperazone sodium/sulbactam sodium. We retrospectively analyzed the drug resistance of P.a isolated at the First Affiliated Hospital of Guangxi Medical University. Drug-resistant P.a strains were constructed, then wild-type (WT) and drug-resistant (DR) strains were compared using protein and gene microarrays to determine differences between DR and WT strains. The resistance rates of P. aeruginosa during 2013, 2014 and 2015 were 21.2%, 21.4%, and 24.6% respectively. Among 242 protein peaks of WT and DR bacteriophage proteins, 41 were differentially expressed between the two groups. The expression of 26 and 15 proteins were respectively upregulated and downregulated in the DR compared with the WT group. Gene microarray results revealed 679 mutant loci in the DR group, of which 42 with the top 50 Q values were found in the NCBI database. The rate of P.a resistance to cefoperazone sodium/sulbactam sodium remained high between 2013 and 2015. The numbers of different proteins and genetic variations in the DR strains suggested that the resistance mechanism of P.a to cefoperazone sodium/sulbactam sodium involves multiple genes and proteins that might be key to controlling P.a resistance to cefoperazone sodium/sulbactam sodium.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/0001-3765202220211160 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metagenomic analysis identifying a polymicrobial pulmonary infection in a non-HIV immunocompromised patient: a case report.
BMC Pulm Med
January 2025
Central Laboratory, Liaocheng People's Hospital and Liaocheng School of Clinical Medicine, Shandong First Medical University, Liaocheng, Shandong, 252000, China.
Background: Polymicrobial pulmonary infections, common in immunocompromised patients, often manifest more severe symptoms than monomicrobial infections. Clinical diagnosis delays may lead to mortality, emphasizing the importance of fast and accurate diagnosis for these patients. Metagenomic next-generation sequencing (mNGS), as an unbiased method capable of detecting all microbes, is a valuable tool to identify pathogens, particularly in cases where infections are difficult to diagnosis using conventional methods.
View Article and Find Full Text PDFEvaluating the activity of cefoperazone-sulbactam against Gram negative pathogens in blood stream infections using automated systems.
Iran J Microbiol
December 2024
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Jammu and Kashmir, India.
Background And Objectives: The incidence of multidrug-resistant, Gram-negative organisms, isolated as the etiological agents of infections is ascending. The advent of novel antibiotics poses significant challenges, necessitating the optimization and utilization of extant antimicrobial agents. Cefoperazone, a third-generation cephalosporin and β-lactam antimicrobial, when combined with sulbactam, an irreversible β-lactamase inhibitor, mitigates the vulnerability of cefoperazone to β-lactamase-producing organisms.
View Article and Find Full Text PDFBloodstream Infection Combined with Thoracic Infection Caused by : A Case Report and Review of the Literature.
Infect Drug Resist
December 2024
Department of Laboratory Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, People's Republic of China.
Objective: is usually found in urogenital tract infections and is associated with several extra-genitourinary infections, including septic arthritis, bacteremia, and meningitis. Here, we report a rare case of induced bloodstream infection with thoracic inflammation in a surgical patient.
Methods: A 56-year-old male who underwent surgery for multiple pelvic and rib fractures developed fever, pleural effusion, and wound exudation despite receiving prophylactic anti-infection treatment with cefotiam.
Phenotypic and genotypic characterization of clinical carbapenem-resistant species harboring the metallo-beta-lactamases IMP-8 or NDM-1 in China.
Microbiol Spectr
December 2024
Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China.
Unlabelled: Carbapenem-resistant spp. pose a significant challenge in clinical settings due to limited treatment options for nosocomial infections. Carbapenem-hydrolyzing class D beta-lactamases are the primary cause for carbapenem resistance, while metallo-beta-lactamases (MBLs) New Delhi metallo beta-lactamase (NDM) and imipenemase (IMP) also contribute.
View Article and Find Full Text PDFSimultaneous determination of three β-Lactam/β-lactamase inhibitor combinations in critically ill patients by UPLC-MS/MS.
J Chromatogr B Analyt Technol Biomed Life Sci
January 2025
Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China. Electronic address:
β-Lactam/β-lactamase inhibitors (BL/BLIs) are widely used in critically ill patients. Recent research has shown the importance of therapeutic drug monitoring (TDM) of BLs, but few studies have highlighted the importance of detecting BLIs in critically ill patients. In our laboratory, we have developed and validated a simple and robust method for the determination of ceftazidime, cefoperazone, piperacillin, avibactam, sulbactam and tazobactam in human plasma by ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!