سامانه مدیریت نشریات علمی دانشگاه علوم پزشکی مشهد

Mir, Zahra, Nodeh Farahani, Narges, Abbasian, Sara, Alinejad, Faranak, Sattarzadeh, Mahboubeh, Pouriran, Ramin, Dahmardehei, Mostafa, Mirzaii, Mehdi, Khoramrooz, Seyed Sajjad, Darban-Sarokhalil, Davood. (1398). The prevalence of exotoxins, adhesion, and biofilm-related genes in Staphylococcus aureus isolates from the main burn center of Tehran, Iran. , 22(11), 1267-1274. doi: 10.22038/ijbms.2019.34908.8291
Zahra Mir; Narges Nodeh Farahani; Sara Abbasian; Faranak Alinejad; Mahboubeh Sattarzadeh; Ramin Pouriran; Mostafa Dahmardehei; Mehdi Mirzaii; Seyed Sajjad Khoramrooz; Davood Darban-Sarokhalil. "The prevalence of exotoxins, adhesion, and biofilm-related genes in Staphylococcus aureus isolates from the main burn center of Tehran, Iran". , 22, 11, 1398, 1267-1274. doi: 10.22038/ijbms.2019.34908.8291
Mir, Zahra, Nodeh Farahani, Narges, Abbasian, Sara, Alinejad, Faranak, Sattarzadeh, Mahboubeh, Pouriran, Ramin, Dahmardehei, Mostafa, Mirzaii, Mehdi, Khoramrooz, Seyed Sajjad, Darban-Sarokhalil, Davood. (1398). 'The prevalence of exotoxins, adhesion, and biofilm-related genes in Staphylococcus aureus isolates from the main burn center of Tehran, Iran', , 22(11), pp. 1267-1274. doi: 10.22038/ijbms.2019.34908.8291
Mir, Zahra, Nodeh Farahani, Narges, Abbasian, Sara, Alinejad, Faranak, Sattarzadeh, Mahboubeh, Pouriran, Ramin, Dahmardehei, Mostafa, Mirzaii, Mehdi, Khoramrooz, Seyed Sajjad, Darban-Sarokhalil, Davood. The prevalence of exotoxins, adhesion, and biofilm-related genes in Staphylococcus aureus isolates from the main burn center of Tehran, Iran. , 1398; 22(11): 1267-1274. doi: 10.22038/ijbms.2019.34908.8291

The prevalence of exotoxins, adhesion, and biofilm-related genes in Staphylococcus aureus isolates from the main burn center of Tehran, Iran

Iranian Journal of Basic Medical Sciences
مقاله 4، دوره 22، شماره 11، بهمن 2019، صفحه 1267-1274    اصل مقاله (560.18 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22038/ijbms.2019.34908.8291
نویسندگان
Zahra Mir1؛ Narges Nodeh Farahani1؛ Sara Abbasian1؛ Faranak Alinejad2؛ Mahboubeh Sattarzadeh2؛ Ramin Pouriran3؛ Mostafa Dahmardehei2؛ Mehdi Mirzaii4؛ Seyed Sajjad Khoramrooz5؛ Davood Darban-Sarokhalil* 1
1Microbial Biotechnology Research Center, Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
2Burn Research Center, Shahid Motahari Hospital, Iran University of Medical Sciences, Tehran, Iran
3School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
5Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
چکیده
Objective(s): The present study investigated the prevalence of genes encoding for exotoxins, adhesion and biofilm factors in Staphylococcus aureus isolates obtained from samples in a referral burn hospital in Tehran, Iran.
Materials and Methods: S. aureus isolates obtained from patients, personnel and surfaces in the wards of a burn hospital were identified and confirmed by biochemical and molecular tests, respectively. The susceptibility of isolates was determined using the disk diffusion method. Virulence factors were detected by multiplex PCR.
Results: The frequency of hla, hlb, hld, hlg, tst and pvl genes was 92.8%, 34.7%, 89.8%, 11.9%, 10.7%, and 0.5% respectively. The results revealed that the hla gene had the highest frequency among isolates (94.4% for methicillin-resistant S. aureus (MRSA) and 89.8% for methicillin-susceptible S. aureus (MSSA)). The most prevalent adhesion and biofilm-related gene was eno (85.6%). The prevalence of the remaining genes was as follows:  fib (71.8%), clfB (70%), cna (59.2 %), fnbB (17.9%), icaA (72.4%), and icaD (85.6%). The incidence of fib, hlb, hlg, and tst genes was significantly higher in MRSA isolates compare to the MSSA isolates. Moreover, the resistance rates for all antibiotics were higher is MRSA isolates except for nitrofurantoin and chloramphenicol antibiotics.
Conclusion: Data indicate the high prevalence rates of virulence factors among S. aureus isolates, especially MRSA strains in the burn hospital. This should to be taken into account in the development of an effective infection control policy and continuous monitoring of drug resistance in hospitals.
کلیدواژه‌ها
MRSA؛ Virulence factors؛ Adhesin and biofilm genes؛ Burn؛ Iran
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