BIOFILM FORMATION AND VIRULENCE FACTORS AMONG PSEUDOMONAS AERUGINOSA ISOLATED FROM BURN PATIENTS

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GHANBARZADEH COREHTASH ZAHRA; KHORSHIDI AHMAD; FIROOZEH FARZANEH; AKBARI HOSEIN; MAHMOUDI AZNAVEH AZAM

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Journal: Jundishapur Journal of Microbiology Year:2015 | Volume:8 | Issue:10 Page(s): 1-6

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Title

BIOFILM FORMATION AND VIRULENCE FACTORS AMONG PSEUDOMONAS AERUGINOSA ISOLATED FROM BURN PATIENTS

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Keywords

BURNS

BIOFILMS

VIRULENCE FACTORS

PSEUDOMONAS AERUGINOSA

Abstract

Background: PSEUDOMONAS AERUGINOSA possesses a variety of VIRULENCE FACTORS and infections caused by multidrug-resistant P. aeruginosa (MDRPA) in burn patients are a public health problem.Objectives: The aim of this study was to determine the antibiotic resistance pattern, the biofilm formation, the prevalence of MDRPA and two virulence genes (nan1 and exoA) among P. aeruginosa isolated from burn patients.Patients and Methods: A total of 144 isolates of P. aeruginosa were collected from burn patient at the Burn Centre of Tehran, Iran, between March 2013 and July 2013. Antibiotic susceptibility test was performed via agar disk diffusion method. The ability of producing biofilm was examined by crystal violet microtiter plate assay and the prevalence of the exoA and nan1 genes among the isolates was determined by polymerase chain reaction (PCR).Results: A high rate of resistance was seen against ciprofloxacin (93.7%), aztreonam (86.8%), piperacillin (85.4%), ceftazidime (82.6%), amikacin (82%) and imipenem (79.2%). In total, 93.1% of the isolates were characterized as MDRPA. Biofilm formation was seen in 92.4% of the isolates. The prevalence of the exoA and nan1 genes were 75% and 11.8% among the isolates, respectively.Conclusions: The high rate of MDRPA and its ability to produce biofilm is an alarm for public health. The statistical analysis showed that biofilm production in the MDRPA isolates was significantly higher than that in the non-MDRPA isolates (P<0.001).

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APA: Copy

GHANBARZADEH COREHTASH, ZAHRA, KHORSHIDI, AHMAD, FIROOZEH, FARZANEH, AKBARI, HOSEIN, & MAHMOUDI AZNAVEH, AZAM. (2015). BIOFILM FORMATION AND VIRULENCE FACTORS AMONG PSEUDOMONAS AERUGINOSA ISOLATED FROM BURN PATIENTS. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), 8(10), 1-6. SID. https://sid.ir/paper/317458/en

Vancouver: Copy

GHANBARZADEH COREHTASH ZAHRA, KHORSHIDI AHMAD, FIROOZEH FARZANEH, AKBARI HOSEIN, MAHMOUDI AZNAVEH AZAM. BIOFILM FORMATION AND VIRULENCE FACTORS AMONG PSEUDOMONAS AERUGINOSA ISOLATED FROM BURN PATIENTS. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM)[Internet]. 2015;8(10):1-6. Available from: https://sid.ir/paper/317458/en

IEEE: Copy

ZAHRA GHANBARZADEH COREHTASH, AHMAD KHORSHIDI, FARZANEH FIROOZEH, HOSEIN AKBARI, and AZAM MAHMOUDI AZNAVEH, “BIOFILM FORMATION AND VIRULENCE FACTORS AMONG PSEUDOMONAS AERUGINOSA ISOLATED FROM BURN PATIENTS,” JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), vol. 8, no. 10, pp. 1–6, 2015, [Online]. Available: https://sid.ir/paper/317458/en

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