Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod
Objective. To study in vitro antimicrobial resistance and prevalence of the most clinically important carbapenemases genes in Klebsiella pneumoniae clinical isolates in Nizhny Novgorod. Materials and Methods. A total of 238 K. pneumoniae clinical isolates from upper and lower respiratory tracts,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Interregional Association for Clinical Microbiology and Antimicrobial Chemotherapy
2022-09-01
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| Series: | Клиническая микробиология и антимикробная химиотерапия |
| Subjects: | |
| Online Access: | https://cmac-journal.ru/publication/2022/3/cmac-2022-t24-n3-p268/cmac-2022-t24-n3-p268.pdf |
| _version_ | 1797975578273382400 |
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| author | Gordinskaya N.A. Boriskina E.V. Kryazhev D.V. |
| author_facet | Gordinskaya N.A. Boriskina E.V. Kryazhev D.V. |
| author_sort | Gordinskaya N.A. |
| collection | DOAJ |
| description | Objective.
To study in vitro antimicrobial resistance and prevalence of the most clinically important carbapenemases genes in Klebsiella pneumoniae clinical isolates in Nizhny Novgorod.
Materials and Methods.
A total of 238 K. pneumoniae clinical isolates from upper and lower respiratory tracts, abdominal cavity, urogenital tract, and wound discharge were tested in this study. Species identification was done using WalkAway 96 analyzer (Siemens, Germany) with POS Combo Type 20 tablets (Beckman Coulter, USA) and Multiscan FC spectrophotometer (Thermo Scientific, Finland) with Microlatest tablets (PLIVA-Lachema, Czech Republic). Antimicrobial resistance was determined by discdiffusion method and using microbiological analyzer WalkAway 96 (Siemens, Germany). Minimal inhibitory concentrations for colistin were determined using the “MIC Colistin” kit (Erba Mannheim, Czech Republic). Detection of carbapenemases genes (KPC, OXA-48 group, IMP, VIM and NDM) was performed by RT-PCR using CFX-96 machine (Bio-Rad, USA) and commercial kits «MDR KPC/OXA-48-FL» and «MDR MBL-FL» (AmpliSens, Russia).
Results.
More than 90% of K. pneumoniae isolates in Nizhny Novgorod were resistant to III–V generation cephalosporins, 53.8% – to gentamicin, 71.2% – to ciprofloxacin, 81.2% – to co-trimoxazole, 88.1% – to ertapenem, 37.1% – to doripenem, 21.6% – to imipenem, 34.3% – to meropenem, 3.2% – to colistin. Genes of КРС-like carbapenemases were detected in 13.1% of isolates, OХA-48 – in 21.6%. Metallobeta-lactamases were not identified among tested isolates.
Conclusions.
Currently, there are no antimicrobials that active against all K. pneumoniae isolates in Nizhny Novgorod. Carbapenems and polymyxins remain active against more than 50% of isolates. |
| first_indexed | 2024-04-11T04:37:47Z |
| format | Article |
| id | doaj.art-38d0ea5fadd6446a9319a989f5b5c3e0 |
| institution | Directory Open Access Journal |
| issn | 1684-4386 2686-9586 |
| language | Russian |
| last_indexed | 2024-04-11T04:37:47Z |
| publishDate | 2022-09-01 |
| publisher | Interregional Association for Clinical Microbiology and Antimicrobial Chemotherapy |
| record_format | Article |
| series | Клиническая микробиология и антимикробная химиотерапия |
| spelling | doaj.art-38d0ea5fadd6446a9319a989f5b5c3e02022-12-28T08:46:57ZrusInterregional Association for Clinical Microbiology and Antimicrobial ChemotherapyКлиническая микробиология и антимикробная химиотерапия1684-43862686-95862022-09-0124326827210.36488/cmac.2022.3.268-272cmac-2022-t24-n3-p268Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny NovgorodGordinskaya N.A.0Boriskina E.V.1Kryazhev D.V.2Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology, Nizhny Novgorod, RussiaAcademician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology, Nizhny Novgorod, RussiaAcademician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology, Nizhny Novgorod, RussiaObjective. To study in vitro antimicrobial resistance and prevalence of the most clinically important carbapenemases genes in Klebsiella pneumoniae clinical isolates in Nizhny Novgorod. Materials and Methods. A total of 238 K. pneumoniae clinical isolates from upper and lower respiratory tracts, abdominal cavity, urogenital tract, and wound discharge were tested in this study. Species identification was done using WalkAway 96 analyzer (Siemens, Germany) with POS Combo Type 20 tablets (Beckman Coulter, USA) and Multiscan FC spectrophotometer (Thermo Scientific, Finland) with Microlatest tablets (PLIVA-Lachema, Czech Republic). Antimicrobial resistance was determined by discdiffusion method and using microbiological analyzer WalkAway 96 (Siemens, Germany). Minimal inhibitory concentrations for colistin were determined using the “MIC Colistin” kit (Erba Mannheim, Czech Republic). Detection of carbapenemases genes (KPC, OXA-48 group, IMP, VIM and NDM) was performed by RT-PCR using CFX-96 machine (Bio-Rad, USA) and commercial kits «MDR KPC/OXA-48-FL» and «MDR MBL-FL» (AmpliSens, Russia). Results. More than 90% of K. pneumoniae isolates in Nizhny Novgorod were resistant to III–V generation cephalosporins, 53.8% – to gentamicin, 71.2% – to ciprofloxacin, 81.2% – to co-trimoxazole, 88.1% – to ertapenem, 37.1% – to doripenem, 21.6% – to imipenem, 34.3% – to meropenem, 3.2% – to colistin. Genes of КРС-like carbapenemases were detected in 13.1% of isolates, OХA-48 – in 21.6%. Metallobeta-lactamases were not identified among tested isolates. Conclusions. Currently, there are no antimicrobials that active against all K. pneumoniae isolates in Nizhny Novgorod. Carbapenems and polymyxins remain active against more than 50% of isolates.https://cmac-journal.ru/publication/2022/3/cmac-2022-t24-n3-p268/cmac-2022-t24-n3-p268.pdfklebsiella pneumoniaeantimicrobial resistancecarbapenemases |
| spellingShingle | Gordinskaya N.A. Boriskina E.V. Kryazhev D.V. Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod Клиническая микробиология и антимикробная химиотерапия klebsiella pneumoniae antimicrobial resistance carbapenemases |
| title | Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod |
| title_full | Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod |
| title_fullStr | Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod |
| title_full_unstemmed | Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod |
| title_short | Phenotypic and genetic characteristics of antimicrobial resistance of Klebsiella pneumoniae clinical isolates in hospitals of Nizhny Novgorod |
| title_sort | phenotypic and genetic characteristics of antimicrobial resistance of klebsiella pneumoniae clinical isolates in hospitals of nizhny novgorod |
| topic | klebsiella pneumoniae antimicrobial resistance carbapenemases |
| url | https://cmac-journal.ru/publication/2022/3/cmac-2022-t24-n3-p268/cmac-2022-t24-n3-p268.pdf |
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