ArticleBMC microbiology2024
Microbiological and molecular studies on a multidrug-resistant Pseudomonas aeruginosa from a liver transplant patient with urinary tract infection in Egypt.
Article in BMC microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Pseudomonas aeruginosa ST4936 with extensive antibacterial drug resistance and virulence determinants from ureteral stent biofilms: whole-genome insights.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Comparative genomic analysis of clinical Pseudomonas aeruginosa isolates from Iraq: insights into genome diversity, antimicrobial resistance, and phylogenetic relatedness.Molecular biology reports · 2026Article
- Nitrofurantoin Susceptibility and the Landscape of Multidrug-Resistant Gram-Negative Uropathogens in Kidney Transplant Recipients During the First Post-Transplant Year.Antibiotics (Basel, Switzerland) · 2026Article
- Modular integration of nanopore sequencing, alphafold modeling, and statistical design boosts 1-hydroxyphenazine yield in Pseudomonas aeruginosa strain KAEH25.BMC microbiology · 2026Article
- Mechanisms ofAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Article
- Genomic Characterization of Extremely Antibiotic-Resistant Strains ofBiotech (Basel (Switzerland)) · 2025Article
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Abstract
backgroundPseudomonas aeruginosa is an opportunistic pathogen responsible for complicated UTIs and exhibits high antibiotic resistance, leading to increased mortality rates, especially in cases of multidrug-resistant strains. This study aimed to investigate the antibiotic susceptibility patterns and genomic characterization of XDR strains identified in end-stage liver disease patients who underwent liver transplants.
methodsIn this study, a number of 30 individuals who underwent liver transplants were registered. Ninety urine and 60 wound site swab samples were collected and processed for culturing, identification, and antimicrobial sensitivity. Extensively drug-resistant strain EMARA01 was confirmed through Sanger sequencing and was then processed for whole genome sequencing to characterize the genomic pattern. Sequencing data were processed for de novo assembly using various tools and databases, including genome annotation, serotype identification, virulence factor genes, and antimicrobial resistance gene. Pangenome analysis of randomly selected 147 reference strains and EMAR01 sequenced strain was performed using the Bacterial Pan Genome Analysis (BPGA) software.
resultsOf these total examined samples, nosocomial infection due to P. aeruginosa was detected in twelve patients' samples. AST analysis showed that P. aeruginosa strains exhibit resistance to tobramycin, erythromycin, and gentamicin, followed by piperacillin and ofloxacin, and no strains exhibit resistance to meropenem and imipenem. The CARD database identified 59 AMR genes similar to the EMAR01 strain genome and mostly belong to the family involved in the resistance-nodulation-cell division (RND) antibiotic efflux pump. Five genes; nalC, nalD, MexR, MexA, and MexB, exhibit resistance to 14 classes of antibiotics, while two AMR; CpxR, and OprM, exhibit resistance to 15 classes of drugs. Pangenome analysis revealed that the pan-genome remained open, suggesting the potential for acquiring accessory and unique genes. Notably, the genes predominantly involved in amino acid transport metabolism were identified using the KEGG database.
conclusionsThis study provides valuable insights into the antimicrobial resistance profile, genetic features, and genomic evolution of P. aeruginosa strains causing UTIs in liver transplant patients. The findings emphasize the significance of comprehending AMR mechanisms and genetic diversity in P. aeruginosa for developing effective treatment strategies and infection control measures.
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