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Aims: Aminoglycoside resistance is frequently detected in extended-spectrum-beta-lactamase (ESBL)-producing Enterobacterales (ESBL-PE), questioning the appropriateness of aminoglycosides as empiric therapy in patients with suspected ESBL-PE infections. Therefore, we aimed to evaluate the frequency of aminoglycoside resistance in patients harbouring ESBL-PE and identify patient-related risk factors associated with aminoglycoside resistance to facilitate early detection of at-risk patients.
Methods: This retrospective single-centre cohort study included hospitalised patients aged ≥18 years with an ESBL-PE-positive sample between January 2016 and December 2018. Aminoglycoside resistance was defined according to the European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoints for Enterobacterales for the current year of testing.
Results: Five hundred forty-four patients met the eligibility criteria, of which 240 (44.1%) harboured aminoglycoside-resistant ESBL strains. Identification of ESBL-Klebsiella pneumoniae was significantly associated with aminoglycoside resistance (odds ratio [OR] = 2.64, 95% confidence interval [CI] = 1.65-4.21, p <0.001) and an international travel history within the past 12 months was marginally associated with aminoglycoside resistance (OR = 1.51, 95% CI = 0.95-2.42, p = 0.084).
Conclusions: In a low ESBL endemicity setting, aminoglycoside resistance in patients harbouring ESBL-PE is common, especially ESBL-K. pneumoniae, and needs to be considered in clinicians' decision-making regarding empiric therapy regimens.
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http://dx.doi.org/10.57187/s.3904 | DOI Listing |
Arch Microbiol
September 2025
División de Ciencias Naturales y Exactas, Departamento de Biología, Universidad de Guanajuato, Zip Code 36050, Guanajuato, Mexico.
Plasmids are fundamental to molecular biology and biotechnology, playing a crucial role in bacterial evolution. Some plasmids are linked to complex cellular dynamics, including pathogenicity islands, antibiotic resistance, and gene mobilization. This study reports the isolation and sequencing of two cryptic plasmids with different electrophoretic mobilities from the Escherichia coli clinical isolate O55.
View Article and Find Full Text PDFTurkiye Parazitol Derg
September 2025
Department of Medical Physics, Faculty of Paramedicine, Arak University of Medical Sciences, Arak, Iran.
Objective: Drug resistance in poses a significant challenge, prompting the need for alternative treatments. This research aimed to explore the combined treatment of chemical or phytomedicines and microwaves radiation.
Methods: The strain was cultivated on non-nutrient agar.
Ecotoxicol Environ Saf
September 2025
Qilu Hospital Qingdao, Cheeloo College of Medicine, Shandong University, Qingdao 266035, China. Electronic address:
The global spread of antimicrobial resistance (AMR) poses a serious threat to public health, with hospital wastewater treatment plants (WWTPs) recognized as a key hotspot for resistant pathogens and antibiotic resistance genes (ARGs). This study employed advanced hybrid sequencing platforms to provide a comprehensive resistomic analysis of a Qingdao WWTP in China, revealing previously uncovered AMR transmission risks. We identified 175 ARG subtypes conferring resistance to 38 antimicrobials, including the last-resort antibiotics, highlighting the extensive and concerning resistance reservoir within this environment.
View Article and Find Full Text PDFWater Res
August 2025
Westlake Laboratory of Life Sciences and Biomedicine, Center for Infectious Disease Research, School of Life Sciences, Westlake University, Hangzhou 310024, China; Zhejiang Provincial Key Laboratory of Intelligent Low-Carbon Biosynthesis, Research Center for Industries of the Future, School of Engin
Livestock wastewater is a critical reservoir of antibiotic resistance genes (ARGs) that poses significant public health risks. This study comprehensively evaluated the seasonal dynamics and associated risks of ARGs in a full-scale livestock wastewater treatment plant using an integrated metagenomic and metatranscriptomic approach. The results showed that untreated livestock wastewater harbored high abundance (4.
View Article and Find Full Text PDFPoult Sci
September 2025
Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China; Shandong Provincial Key Laboratory of Zoonoses, Shandong Agricultural University, Tai'an, Shandong, China. Electronic address:
While the global dissemination of extended-spectrum β-lactamases (ESBLs) in clinical isolates from various animals is well-documented, research on Klebsiella pneumoniae in Trichomonas gallinae-infected pigeons, particularly concerning antibiotic resistance genes in China, remains limited. This study aimed to investigate the relationship between oral harmful microbiota in pigeons and T. gallinae infection, as well as to isolate K.
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