Acta Microbiologica et Immunologica Hungarica
Volume/Issue:
Volume 70: Issue 3
Imipenem resistance associated with amino acid alterations of the OprD porin in Pseudomonas aeruginosa clinical isolates
Authors:
Maryam Nazari Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran

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Hadi Ahmadi Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran

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Shahnaz Hosseinzadeh Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran

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Amirhossein Sahebkar Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran

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Farzad Khademi Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
Arthropod-Borne Diseases Research Center, Ardabil University of Medical Sciences, Ardabil, Iran

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https://orcid.org/0000-0001-6181-4903
Pages:
206–212
Online Publication Date:
21 Jun 2023
Publication Date:
21 Sep 2023
Article Category:
Research Article
DOI:
https://doi.org/10.1556/030.2023.02060
Keywords:
Pseudomonas aeruginosa; antibiotic resistance; imipenem; oprD gene
Restricted access

Abstract

Globally, the spread of carbapenem-resistant strains has limited treatment options for multidrug-resistant (MDR) Pseudomonas aeruginosa infections. This study aimed to determine the role of point mutations as well as the expression level of the oprD gene in the emergence of imipenem-resistant P. aeruginosa strains isolated from patients referred to Ardabil hospitals. A total of 48 imipenem-resistant clinical isolates of P. aeruginosa collected between June 2019 and January 2022 were used in this study. Detection of the oprD gene and its amino acid alterations was performed using the polymerase chain reaction (PCR) and DNA sequencing techniques. The expression level of the oprD gene in imipenem-resistant strains was determined using the real-time quantitative reverse transcription PCR (RT-PCR) method. All imipenem-resistant P. aeruginosa strains were positive for the oprD gene based on the PCR results, and also five selected isolates indicated one or more amino acid alterations. Detected amino acid alterations in the OprD porin were Ala210Ile, Gln202Glu, Ala189Val, Ala186Pro, Leu170Phe, Leu127Val, Thr115Lys, and Ser103Thr. Based on the RT-PCR results, the oprD gene was downregulated in 79.1% of imipenem-resistant P. aeruginosa strains. However, 20.9% of strains showed overexpression of the oprD gene. Probably, resistance to imipenem in these strains is associated with the presence of carbapenemases, AmpC cephalosporinase, or efflux pumps. Owing to the high prevalence of imipenem-resistant P. aeruginosa strains due to various resistance mechanisms in Ardabil hospitals, the implementation of surveillance programs to reduce the spread of these resistant microorganisms along with rational selection and prescription of antibiotics is recommended.

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Cover Acta Microbiologica et Immunologica Hungarica
Acta Microbiologica et Immunologica Hungarica A Quarterly of the Hungarian Academy of Sciences
Print ISSN:
1217-8950
Online ISSN:
1588-2640
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Senior editors

Editor-in-Chief: Prof. Dóra Szabó (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Managing Editor: Dr. Béla Kocsis (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Co-editor: Dr. Andrea Horváth (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Editorial Board

  • Prof. Éva ÁDÁM (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Sebastian AMYES (Department of Medical Microbiology, University of Edinburgh, Edinburgh, UK.)
  • Dr. Katalin BURIÁN (Institute of Clinical Microbiology University of Szeged, Szeged, Hungary; Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary.)
  • Dr. Orsolya DOBAY (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Ildikó Rita DUNAY (Institute of Inflammation and Neurodegeneration, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany)
  • Prof. Levente EMŐDY(Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary.)
  • Prof. Anna ERDEI (Department of Immunology, Eötvös Loránd University, Budapest, Hungary, MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary.)
  • Prof. Éva Mária FENYŐ (Division of Medical Microbiology, University of Lund, Lund, Sweden)
  • Prof. László FODOR (Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, Budapest, Hungary)
  • Prof. József KÓNYA (Department of Medical Microbiology, University of Debrecen, Debrecen, Hungary)
  • Prof. Yvette MÁNDI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Károly MÁRIALIGETI (Department of Microbiology, Eötvös Loránd University, Budapest, Hungary)
  • Prof. János MINÁROVITS (Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary)
  • Prof. Béla NAGY (Centre for Agricultural Research, Institute for Veterinary Medical Research, Budapest, Hungary.)
  • Prof. István NÁSZ (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Kristóf NÉKÁM (Hospital of the Hospitaller Brothers in Buda, Budapest, Hungary.)
  • Dr. Eszter OSTORHÁZI (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Rozália PUSZTAI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Peter L. RÁDY (Department of Dermatology, University of Texas, Houston, Texas, USA)
  • Prof. Éva RAJNAVÖLGYI (Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary)
  • Prof. Ferenc ROZGONYI (Institute of Laboratory Medicine, Semmelweis University, Budapest, Hungary)
  • Prof. Joseph G. SINKOVICS (The Cancer Institute, St. Joseph’s Hospital, Tampa, Florida, USA)
  • Prof. Júlia SZEKERES (Department of Medical Biology, University of Pécs, Pécs, Hungary.)
  • Prof. Mária TAKÁCS (National Reference Laboratory for Viral Zoonoses, National Public Health Center, Budapest, Hungary.)
  • Prof. Edit URBÁN (Department of Medical Microbiology and Immunology University of Pécs, Pécs, Hungary; Institute of Translational Medicine, University of Pécs, Pécs, Hungary.)

 

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Acta Microbiologica et Immunologica Hungarica
Language English
Size A4
Year of
Foundation		 1954
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1217-8950 (Print)
ISSN 1588-2640 (Online)

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