Dataset Information

Identification and characterization of invasive multi-drug-resistant (MDR) Bacteroides genomospecies in Canada.

ABSTRACT: We identified and characterized a genome of the multi-drug-resistant Bacteroides genomospecies recovered from an invasive specimen from a hospitalized patient in Canada. The strain was resistant to penicillin, pipercillin-tazobactam, meropenem, clindaymycin and metronidazole. The strain harboured a plasmid containing the nimE gene, which has been shown to be associated with metronidazole resistance. The study highlights the importance of being vigilant in suspecting antimicrobial drug resistance when a patient is not improving on therapy.

SUBMITTER: Graham C

PROVIDER: S-EPMC7494187 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Publications

Identification and characterization of invasive multi-drug-resistant (MDR) Bacteroides genomospecies in Canada.

Graham Christopher C Eshaghi Alireza A Sarabia Alicia A Zittermann Sandra S Stapleton Patrick P Kus Julianne V JV Patel Samir N SN

Access microbiology 20200226 5

We identified and characterized a genome of the multi-drug-resistant Bacteroides genomospecies recovered from an invasive specimen from a hospitalized patient in Canada. The strain was resistant to penicillin, pipercillin-tazobactam, meropenem, clindaymycin and metronidazole. The strain harboured a plasmid containing the nimE gene, which has been shown to be associated with metronidazole resistance. The study highlights the importance of being vigilant in suspecting antimicrobial d ...[more]

PMID: 32974576

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Project description:Purpose:The integrons, as the mobile exogenous elements, play a prominent role in the spreading of antimicrobial resistance genes from Pseudomonas aeruginosa clinical isolates to other bacteria. This study aimed to investigate the frequency of class 1 integrons andresistance gene cassettes carrying by them in clinical isolates as well as multidrug resistant P. aeruginosa. Materials and Methods:A total of 100 clinical isolates of P. aeruginosa were collected from 5 hospitals in Mazandaran province, north Iran. The antibiotic susceptibility pattern of the isolates was evaluated using the disk agar diffusion method. Genomic DNAs were extracted and then the presence of class 1 integrons was detected by the PCR test. All PCR products of the positive isolates were sequenced for the detection of resistance gene cassettes by the Sanger method. Results:Forty-one percent of the clinical isolates were multi-drug resistant. Also, 42% of the isolates were contained class 1 integron, and 61.9% of the integron positive isolates were detected as MDR. We detected 10 different gene cassettes sizing from 0.6 to 3.5 kb in the present study. The sequencing analysis of the internal variable regions of the class 1 integrons showed that the 0.75 kb gene cassette (aadB) was the most frequent resistance gene (54.76%) among all clinical isolates, as well as the MDR isolates. Other resistance genes detected in this study were included: aadA6-orfD (35.71%), aacA4-bla OXA-10 (21.42%), aadB-aacA4-bla OXA-10 (19.04%), bla OXA-10-aacA4-VIM1 (11.9%), aacA4-catB10 (7.14%), aacA5-aadA1-cmlA5 (7.14%), bla OXA31-aadA2 (4.76%), and aac(3)-Ic-aacA5-cmlA5 (4.76%). To the best of our knowledge, bla OXA-10 -aacA4-VIM1 cassette array is detected for the first time in this study. Conclusion:The treatment of infections caused by P. aeruginosa in this region of Iran is a major problem due to the high prevalence of class 1 integrons. It seems that the high prescription of beta-lactams and aminoglycosides for the treatment of these infections may be replaced by other combination therapy stewardships.

Dataset Information

Identification and characterization of invasive multi-drug-resistant (MDR) Bacteroides genomospecies in Canada.

Publications

Identification and characterization of invasive multi-drug-resistant (MDR) <i>Bacteroides</i> genomospecies in Canada.

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