Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients

Purpose: The antimicrobial activity of doripenem in comparison of imipenem, meropenem and ertapenem among Pseudomonas aeruginosa isolated from burn and Cystic Fibrosis (CF) patients were determined. Methods: Metallo-β-lactamase (MBL) genes in imipenem non susceptible P. aeruginosa isolates were dete...

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Main Authors: Reza Bigverdi, Mona Ghazi, Mostafa Davodi, Tahereh Pirzadeh, Morteza Ghojazadeh, Mohammad Hossein Soroush, Mohammad Reza Nahaei, Mohammad Ahangarzadeh Rezaee, Zoya Hojabri, Omid Pajand, Mohammad Aghazadeh
Format: Article
Language:English
Published: Tabriz University of Medical Sciences 2013-02-01
Series:Advanced Pharmaceutical Bulletin
Subjects:
Online Access:http://journals.tbzmed.ac.ir/PDF/APB/Manuscript/APB-3-121.pdf
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author Reza Bigverdi
Mona Ghazi
Mostafa Davodi
Tahereh Pirzadeh
Morteza Ghojazadeh
Mohammad Hossein Soroush
Mohammad Reza Nahaei
Mohammad Ahangarzadeh Rezaee
Zoya Hojabri
Omid Pajand
Mohammad Aghazadeh
author_facet Reza Bigverdi
Mona Ghazi
Mostafa Davodi
Tahereh Pirzadeh
Morteza Ghojazadeh
Mohammad Hossein Soroush
Mohammad Reza Nahaei
Mohammad Ahangarzadeh Rezaee
Zoya Hojabri
Omid Pajand
Mohammad Aghazadeh
author_sort Reza Bigverdi
collection DOAJ
description Purpose: The antimicrobial activity of doripenem in comparison of imipenem, meropenem and ertapenem among Pseudomonas aeruginosa isolated from burn and Cystic Fibrosis (CF) patients were determined. Methods: Metallo-β-lactamase (MBL) genes in imipenem non susceptible P. aeruginosa isolates were detected using PCR method. The in vitro susceptibilities of doripenem, imipenem, meropenem and ertapenem were determined by Etests. MIC50 and MIC90 for corresponding antibiotics were determined individually in burn and CF isolates. Results: Among isolates which were resistant to imipenem, 16 isolates were positive for the bla IMP gene. All isolates had no bla VIM gene. All MBL producing isolates were excluded. MIC50/MIC90 of doripenem in CF and burn isolates were 0.75/>32 and >32/>32 mg/L respectively. The corresponding values for imipenem in CF and burn isolates were 2/>32 and >32/>32 mg/L, respectively. Conclusion: The susceptibility rate of doripenem is higher than that of imipenem and meropenem among P.aeruginosa isolated from CF patients, whereas, there is no difference between the efficiency of doripenem and old carbapenems in non MBL producing P.aeruginosa isolates in burn patients.
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spelling doaj.art-e0982b47fc1147a78bd36ffff37724952022-12-22T01:20:06ZengTabriz University of Medical SciencesAdvanced Pharmaceutical Bulletin2228-58812251-73082013-02-013112112510.5681/apb.2013.020Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn PatientsReza BigverdiMona GhaziMostafa DavodiTahereh PirzadehMorteza GhojazadehMohammad Hossein SoroushMohammad Reza NahaeiMohammad Ahangarzadeh RezaeeZoya HojabriOmid PajandMohammad AghazadehPurpose: The antimicrobial activity of doripenem in comparison of imipenem, meropenem and ertapenem among Pseudomonas aeruginosa isolated from burn and Cystic Fibrosis (CF) patients were determined. Methods: Metallo-β-lactamase (MBL) genes in imipenem non susceptible P. aeruginosa isolates were detected using PCR method. The in vitro susceptibilities of doripenem, imipenem, meropenem and ertapenem were determined by Etests. MIC50 and MIC90 for corresponding antibiotics were determined individually in burn and CF isolates. Results: Among isolates which were resistant to imipenem, 16 isolates were positive for the bla IMP gene. All isolates had no bla VIM gene. All MBL producing isolates were excluded. MIC50/MIC90 of doripenem in CF and burn isolates were 0.75/>32 and >32/>32 mg/L respectively. The corresponding values for imipenem in CF and burn isolates were 2/>32 and >32/>32 mg/L, respectively. Conclusion: The susceptibility rate of doripenem is higher than that of imipenem and meropenem among P.aeruginosa isolated from CF patients, whereas, there is no difference between the efficiency of doripenem and old carbapenems in non MBL producing P.aeruginosa isolates in burn patients.http://journals.tbzmed.ac.ir/PDF/APB/Manuscript/APB-3-121.pdfPseudomonas aeruginosaDoripenemImipenemBurnCystic fibrosisIran
spellingShingle Reza Bigverdi
Mona Ghazi
Mostafa Davodi
Tahereh Pirzadeh
Morteza Ghojazadeh
Mohammad Hossein Soroush
Mohammad Reza Nahaei
Mohammad Ahangarzadeh Rezaee
Zoya Hojabri
Omid Pajand
Mohammad Aghazadeh
Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
Advanced Pharmaceutical Bulletin
Pseudomonas aeruginosa
Doripenem
Imipenem
Burn
Cystic fibrosis
Iran
title Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
title_full Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
title_fullStr Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
title_full_unstemmed Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
title_short Comparison of in Vitro Activity of Doripenem versus Old Carbapenems against Pseudomonas Aeruginosa Clinical Isolates from both CF and Burn Patients
title_sort comparison of in vitro activity of doripenem versus old carbapenems against pseudomonas aeruginosa clinical isolates from both cf and burn patients
topic Pseudomonas aeruginosa
Doripenem
Imipenem
Burn
Cystic fibrosis
Iran
url http://journals.tbzmed.ac.ir/PDF/APB/Manuscript/APB-3-121.pdf
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