Bioﬁ lm Formation in Staphylococcus epidermidis Isolated from Hospitalized Patients

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HASANVAND HAMZEH; Teymouri Fathollah; OHADI ELNAZ; AZADEGAN AZADEH; SADEGHI KALANI BEHROOZ

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Journal: Archives of Clinical Infectious Diseases Year:2019 | Volume:14 | Issue:3 Page(s): 0-0

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Title

Bioﬁ lm Formation in Staphylococcus epidermidis Isolated from Hospitalized Patients

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Keywords

Biofilm

Staphylococcus epidermidis

Hospitalized Patients

Abstract

Background: Staphylococcus epidermidis as a typical opportunist pathogen is responsible for major nosocomial infections, and has a substantial impact on human life and health. Studies have shown that its main virulence factor is the ability to form bioﬁ lms on polymeric surfaces to which it adheres and colonize. The bioﬁ lms protect microorganisms such as Staphylococcus epidermidis against the action of antibiotics administered for the treatment of infections and against the patient’ s immune system. Methods: In the current study, 50 isolates of S. epidermidis were characterized and subjected to bioﬁ lm detection by the microtiter plate (MTP), Congo red agar (CRA), and PCR methods. Antibiotic resistance was assessed by the disk diﬀ usion method. The clinical source of S. epidermidis was as follows: blood (n = 20, 40%), urine (n = 4, 8%), wound (n = 8, 16%), catheter (n = 10, 20%), and pus (n = 8, 16%). Results: The current study showed that all the isolates were susceptible to nitrofurantoin, vancomycin, and Synercid and all were resistant to penicillin. Moreover, 68% of the isolates were bioﬁ lm-positive by CRA and 76% by MTP methods. Finally, 72% of the isolates showed icaA genes. Conclusions: The pathogenic determinants of S. epidermidis are very complex, multifactorial, and dependent on numerous genetic and environmental factors. Other genes that may contribute to pathogenicity are also involved in bioﬁ lm formation in S. epidermidis that need to be studied in more accurate molecular assays.

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APA: Copy

HASANVAND, HAMZEH, Teymouri, Fathollah, OHADI, ELNAZ, AZADEGAN, AZADEH, & SADEGHI KALANI, BEHROOZ. (2019). Bioﬁ lm Formation in Staphylococcus epidermidis Isolated from Hospitalized Patients. ARCHIVES OF CLINICAL INFECTIOUS DISEASES, 14(3), 0-0. SID. https://sid.ir/paper/739074/en

Vancouver: Copy

HASANVAND HAMZEH, Teymouri Fathollah, OHADI ELNAZ, AZADEGAN AZADEH, SADEGHI KALANI BEHROOZ. Bioﬁ lm Formation in Staphylococcus epidermidis Isolated from Hospitalized Patients. ARCHIVES OF CLINICAL INFECTIOUS DISEASES[Internet]. 2019;14(3):0-0. Available from: https://sid.ir/paper/739074/en

IEEE: Copy

HAMZEH HASANVAND, Fathollah Teymouri, ELNAZ OHADI, AZADEH AZADEGAN, and BEHROOZ SADEGHI KALANI, “Bioﬁ lm Formation in Staphylococcus epidermidis Isolated from Hospitalized Patients,” ARCHIVES OF CLINICAL INFECTIOUS DISEASES, vol. 14, no. 3, pp. 0–0, 2019, [Online]. Available: https://sid.ir/paper/739074/en

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