Virulence Gene’s Relationship With Biofilm Formation and Detection of aac (6’)/aph (2”) in Enterococcus faecalis Isolated From Patients With Urinary Tract Infection

Rezvan Moniri; Ahmad Ghasemi; Seyed Gholam Abbas Moosavi; Kamran Dastehgoli; Maryam Rezaei

doi:10.5812/jjm.6244

Jundishapur Journal of Microbiology

Ahvaz Jundishapur University of Medical Sciences

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https://doi.org/10.5812/jjm.6244

Virulence Gene’s Relationship With Biofilm Formation and Detection of aac (6’)/aph (2”) in Enterococcus faecalis Isolated From Patients With Urinary Tract Infection

Author(s):

Rezvan Moniri^{1, 2,*},

Ahmad Ghasemi¹,

Seyed Gholam Abbas Moosavi³,

Kamran Dastehgoli²,

Maryam Rezaei¹

1Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, IR Iran

2Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, IR Iran

3Department of Statistic , Health Faculty, Kashan University of Medical Sciences, Kashan, IR Iran

Jundishapur Journal of Microbiology:Vol. 6, issue 5; e94137

Published online:Jul 01, 2013

Article type:Research Article

Received:May 20, 2019

Accepted:Nov 07, 2012

How to Cite:Moniri R, Ghasemi A, Moosavi SGA, Dastehgoli K, Rezaei M. Virulence Gene’s Relationship With Biofilm Formation and Detection of aac (6’)/aph (2”) in Enterococcus faecalis Isolated From Patients With Urinary Tract Infection. Jundishapur J Microbiol. 2013;6(5):e94137. doi: https://doi.org/10.5812/jjm.6244

Abstract

Objectives: We investigated the potential relationships between biofilm formation and prevalence of virulence genes (asa1, esp, cylA, and gelE/sprE), and antimicrobial resistance genes (aac (6’)/aph (2”) in Enterococcus faecalis isolated from patients with urinary tract infection.

Patients and Methods: In this survey 95 E. faecalis isolates from patients with urinary tract infections staying at Shahid Beheshti hospital in Kashan, Iran, between 2007 and 2008 were studied. We analyzed the prevalence of genes encoding virulence factors (asa1, esp, cylA and gelE/ sprE), and antimicrobial resistance genes [(aac (6’)/aph (2”)] by PCR. In addition, the production of biofilm and extracellular enzymes, hemolysin (Hln) and Gelatinase were examined.

Results: The asa1,(aac (6’)/aph (2”), esp, cylA, and gelE/sprE were detected in 94.7%, 68.4%, 61.1%, 50.5% and 21.1% of E.faecalis isolates, respectively. The hemolysin production and gelatinase activity were seen in 44.2% and 20% of isolates, respectively. 16.8% of E. faecalis isolates showed strong and 83.2% exhibited weak biofilm formation. The percentages of genes encoding virulence factors in E. faecalis which had the ability of strong biofilm formation were as follows: gelE/sprE 25%, esp22.4%, (aac (6’)/aph (2”)18.5%, asa1 16.7% and cylA 14.6%. The presence of both aac (6’)/aph (2”) and esp positive act as a risk factor for biofilm formation (P value < 0.001).

Conclusions: There was a significant relationship between biofilm formation and possession of esp and aac (6’)/aph (2”) genes. There was no evidence between biofilm formation and presence of any other gene. Enterococcal infections associated with biofilm formation have been a serious problem in recent years.

Keywords

Enterococcus faecalis

Biofilms

Urinary Tract Infection

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References

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The references are available in PDF file.

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Virulence Factor and Biofilm Formation in Clinical Enterococcal Isolates of the West of Iran

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Biotyping and Antimicrobial Susceptibility of Enterococcus faecalis and E. faecium Isolated from Urine and Stool Samples

Gülşah Tollu,

Ismail Hakkı Ekin

Tollu G, Ekin IH. Biotyping and Antimicrobial Susceptibility of Enterococcus faecalis and E. faecium Isolated from Urine and Stool Samples. Jundishapur J Microbiol. 2020;13(10):e105136. doi: https://doi.org/10.5812/jjm.105136

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Author(s):

Rezvan Moniri:[PubMed][Scholar]
Ahmad Ghasemi:[PubMed][Scholar]
Seyed Gholam Abbas Moosavi:[PubMed][Scholar]
Kamran Dastehgoli:[PubMed][Scholar]
Maryam Rezaei:[PubMed][Scholar]

Ahvaz Jundishapur University of Medical Sciences

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Virulence Gene’s Relationship With Biofilm Formation and Detection of aac (6’)/aph (2”) in Enterococcus faecalis Isolated From Patients With Urinary Tract Infection

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