ArticleMolecular biology reports2023
Evaluated gene expressions of Metallo beta lactamase genes GIM and , VIM, SPM in Pseudomonas aeruginosa clinical isolates.
Article in Molecular biology reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- Metallo Beta Lactamase Enzymes.Indian journal of microbiology · 2025Review
- Neonatal intensive care units: extended spectrum β-lactamase genes and biofilm formation by Serratia marcescens.Molecular biology reports · 2024Article
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pseudomonas aeruginosa is considered as one of the human health care problems, P. aeruginosa's carbapenem resistance emerges by several different mechanisms, some of which include carbapenems genes. P. aeruginosa's carbapenem resistance is a significant health concern, So this study aims to evaluate MBL gene expressions. The study was conducted at the Department of Microbiology, AL-Mahmoodia Hospital, over one year from January to December 2022. The samples were collected from patients with different clinical sources (Burn, Urine, Wound, Sputum, Ear, and Blood), from different ages while. Samples were collected from three hospitals in Baghdad including Al-Yarmouk Teaching Hospital, AL-Mahmmodiya Hospital, and Child's Central Teaching Hospital. A study analyzed 55 P. aeruginosa strains from various clinical sources, the study utilizes the chemical characterization, VITEK 2 system, 16s rRNA, antibiogram sensitivity tests, antibiotic susceptibility using eight antibiotics, including Amikacin, Ciprofloxacin, Levofloxacin, Imipenem Meropenem, Piperacillin, Cefepim and Aztreonam. The test of bacterial susceptibility revealed that each isolate was highly resistant to piperacillin, which are 96.36%, and lower resistance to Ciprofloxacin, which are 32%. Phenotypic screening carbapenem resistance methods combined the disk synergy test and conventional PCR that were used to detect isolates by using 16 S rRNA. This proves that the bacteria is P. aeruginosa and computed by measuring gene expression of the target genes (GIM, VIM, SPM) by using the real-time PCR, which is employed for twenty-five isolates. The result indicates that the expression level of the VIM gene is highly regulated in carbapenem-resistance isolates compared to control isolates that is 1.00. While the expression level of gene GIM and SPM is downregulated in carbapenem-resistance isolates compared to control isolates that is 6. The carbapenem VIM and GIM, SPM (class B) genes are essential for resistance in P. aeruginosa induced by chromosomal changes that modify membrane permeability efflux pump overexpression for genes. As a result, many studies require for discovering new strategies to reduce the threat to public health through preventing the spread of these isolates via tight infections, control measures, and the reduction of the danger to public health.
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