Avicenna Journal of Clinical Microbiology and Infection، جلد ۲، شماره ۲، صفحات ۰-۰
عنوان فارسی The Correlation Between Biofilm Formation and Drug Resistance in Nosocomial Isolates of Acinetobacter baumannii
چکیده فارسی مقاله Conclusions The potential to form biofilm correlated with antibiotic resistance and AmpC production in non-burn burn isolates of A. baumannii. On the other hand, the burn strains produced significantly higher amounts of ESBL yet biofilm production was unrelated to antibiotic resistance or ESBL-production. Materials and Methods Sixty isolates of A. baumannii were employed of which, 30 were burn and 30 were non-burn isolates. Biofilm formation was measured by the microtiter plate assay. The production of AmpC was detected by the AmpC disc test with cloxacillin, and ESBL production was determined using the double disc synergy test. Results Biofilm production occurred in 61.7% of the isolates among which, non-burn isolates (59.5%) produced more biofilm compared to the burn strains (40.5%). Multidrug resistance was observed in both biofilm positive and negative strains. However, the non-burn isolates were significantly more resistant to meropenem and tobramycin regardless of their potential to form biofilm. Interestingly, biofilm-producing non-burn isolates were significantly more resistant to amikacin, gentamicin, tobramycin and meropenem. Production of AmpC was also significantly higher in biofilm-producing non-burn isolates. Conversely, ESBL production was significantly higher in burn isolates. There was an association between biofilm formation and AmpC but not ESBL-production among non-burn isolates. Background Acinetobacter baumannii has become a major cause of hospital-acquired infections due to its resistance to common antibacterial agents. Biofilm formation is a well-known pathogenic mechanism involved in A. baumannii infections. Objectives The aim of this study was to determine the association between biofilm formation and antibiotic resistance, production of AmpC and Extended-Spectrum β-lactamases (ESBL) in clinical isolates of A. baumannii collected from two hospitals of Tehran.
کلیدواژه‌های فارسی مقاله Acinetobacter baumannii،Burn،Biofilms،Antibiotic Resistance
عنوان انگلیسی The Correlation Between Biofilm Formation and Drug Resistance in Nosocomial Isolates of Acinetobacter baumannii
چکیده انگلیسی مقاله Conclusions The potential to form biofilm correlated with antibiotic resistance and AmpC production in non-burn burn isolates of A. baumannii. On the other hand, the burn strains produced significantly higher amounts of ESBL yet biofilm production was unrelated to antibiotic resistance or ESBL-production. Materials and Methods Sixty isolates of A. baumannii were employed of which, 30 were burn and 30 were non-burn isolates. Biofilm formation was measured by the microtiter plate assay. The production of AmpC was detected by the AmpC disc test with cloxacillin, and ESBL production was determined using the double disc synergy test. Results Biofilm production occurred in 61.7% of the isolates among which, non-burn isolates (59.5%) produced more biofilm compared to the burn strains (40.5%). Multidrug resistance was observed in both biofilm positive and negative strains. However, the non-burn isolates were significantly more resistant to meropenem and tobramycin regardless of their potential to form biofilm. Interestingly, biofilm-producing non-burn isolates were significantly more resistant to amikacin, gentamicin, tobramycin and meropenem. Production of AmpC was also significantly higher in biofilm-producing non-burn isolates. Conversely, ESBL production was significantly higher in burn isolates. There was an association between biofilm formation and AmpC but not ESBL-production among non-burn isolates. Background Acinetobacter baumannii has become a major cause of hospital-acquired infections due to its resistance to common antibacterial agents. Biofilm formation is a well-known pathogenic mechanism involved in A. baumannii infections. Objectives The aim of this study was to determine the association between biofilm formation and antibiotic resistance, production of AmpC and Extended-Spectrum β-lactamases (ESBL) in clinical isolates of A. baumannii collected from two hospitals of Tehran.
کلیدواژه‌های انگلیسی مقاله Acinetobacter baumannii,Burn,Biofilms,Antibiotic Resistance
نویسندگان مقاله شیوا امامی | shiva emami
department of microbiology, faculty of biological sciences, shahid beheshti university g.c. tehran, ir iran

سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

فرشته افتخار | fereshteh eftekhar
department of microbiology, faculty of biological sciences, shahid beheshti university g.c. tehran, ir iran; department of microbiology, faculty of biological sciences, shahid beheshti university g.c. tehran, ir iran. tel 98-2129903208, fax 98-2122431664

سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

نشانی اینترنتی http://www.ajcmicrob.com/index.php?page=article&article_id=23954
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/1795/article-1795-276884.pdf
کد مقاله (doi) 10.17795/ajcmi-23954
زبان مقاله منتشر شده fa
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نوع مقاله منتشر شده research-article
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