Background And Objectives: Pseudomonas aeruginosa is a frequent opportunistic pathogen in health care associated infections that is highly resistant to the majority of β-lactams. The aims of this study were to access the antimicrobial susceptibility pattern of P. aeruginosa isolated from educational hospitals of Qazvin and Alborz provinces, to determine the prevalence of metallo-β-lactamase (MBL) among carbapenem non-susceptible isolates by combined disk (CD) method, and to detect the bla IMP, bla VIM, bla SIM, bla GIM, bla SPM and bla NDM-1-MBL genes.

Materials And Methods: In this cross-sectional study, 300 P. aeruginosa isolates were collected from different clinical specimens in two provinces of Qazvin and Alborz hospitals, Iran. After identification of isolates by standard laboratory methods, antimicrobial susceptibility was done against 17 antibiotics according to clinical and laboratory standards institute (CLSI) guideline. CD method was carried out for detection of MBLs and the presence of bla IMP, bla VIM, bla SIM, bla GIM, bla NDM-1 and bla SPM-genes was further assessed by PCR and sequencing methods.

Results: In this study, 107 (35.66%) isolates were non-susceptible to imipenem and/or meropenem among those 56 (52.3%) isolates were metallo-β-lactamase producer. Twenty-four of 56 (42.85%) MBL-positive isolates were confirmed to be positive for MBL-encoding genes in which 14 (25%) and 10 (17.85%) isolates carried bla IMP-1 and bla VIM-1 genes either alone or in combination. Three (5.35%) isolates carried bla IMP and bla VIM genes, simultaneously.

Conclusion: Considering the moderate prevalence and clinical importance of MBL-producing isolates, rapid identification and use of appropriate infection control (IC) measures are necessary to prevent further spread of infections by these resistant organisms.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4752683PMC

Publication Analysis

Top Keywords

bla
18
qazvin alborz
12
bla imp
12
imp bla
12
bla vim
12
isolates
9
pseudomonas aeruginosa
8
bla imp-1
8
imp-1 bla
8
bla vim-1
8

Similar Publications

High-Copy IncP-2 Megaplasmid Carrying bla in Clinical Difficult-to-Treat Resistance Pseudomonas aeruginosa: Associated with High-Level Cefiderocol Resistance.

J Infect

January 2025

State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Infection Control Department, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. Electronic address:

View Article and Find Full Text PDF

Genomic insights into a multidrug-resistant Pandoraea apista clinical isolate carrying bla from China.

J Glob Antimicrob Resist

January 2025

Clinical Laboratory Department, Lishui People's Hospital, the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, China. Electronic address:

Objectives: Pandoraea apista is notable for its multidrug resistance and is frequently identified in patients with cystic fibrosis or other chronic lung diseases, where it contributes to persistent lung infections. In this study, we describe a strain of P. apista harboring the bla, isolated from the bronchoalveolar lavage (BAL) fluid of an inpatient in China.

View Article and Find Full Text PDF

A wide range of pollutants, including heavy metals, endocrine-disrupting chemicals (EDCs), residual pesticides, and pharmaceuticals, are present in various water systems, many of which strongly drive the proliferation and dissemination of antimicrobial resistance genes (ARGs), heightening the antimicrobial resistance (AMR) crisis and creating a critical challenge for environmental and health management worldwide. This study addresses the impact of anthropogenic pollutants on AMR through an extensive analysis of ARGs and mobile genetic elements (MGEs) in urban wastewater, source water, and drinking water supplies in India. Results indicated that bla and bla were the dominant ARGs across all water systems, underscoring the prevalence and dominance of resistance against β-lactam antibiotics.

View Article and Find Full Text PDF

Cases of antibiotic-resistant () infections are becoming increasingly frequent and represent a major threat to our ability to treat cancer patients. The emergence of antimicrobial resistance threatens the treatment of infections. In this study, the antimicrobial profiles, virulent genes, and the frequency of extended-spectrum beta-lactamase (ESBL) gene carriage in fecal isolates from cancer patients at the Laquintinie Hospital in Douala (Cameroon) were determined.

View Article and Find Full Text PDF

The transmission of antibiotic resistance (AR) from farm animals to healthy human communities, beyond the food chain, is often facilitated by biological vectors, notably houseflies (Musca domestica). This study aimed to evaluate the role of M. domestica collected from commercial broiler chicken farms as a carrier of multidrug-resistant (MDR), extended-spectrum β-lactamase (ESBL)-producing Escherichia coli.

View Article and Find Full Text PDF

Want 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!