In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia
Апстракт
Recently, geographic variations in resistance to agents commonly used in the treatment of cryptococcosis have been reported. Therefore, the antifungal susceptibilities of 31 clinical isolates of Cryptococcus neoformans, collected in Serbia during 10-year period, were investigated. Strains were isolated from cerebrospinal fluid (n = 28) and blood (n = 3), from patients with AIDS (n = 26), lymphoma (n = 4) and kidney transplant recipient (n = 1). The minimal inhibitory concentrations (MICs) of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole were determined by the E-test (R) method. The isolates were highly susceptible to amphotericin B (100% susceptibility at MIC LT 0.5 mu g/mL) and 5-fluorocytosine (87.1% susceptibility at MIC LT = 4 mu g/mL). Geometric mean MIC of amphotericin B and 5-fluorocytosine were 0.102 mu g/mL and 0.396 mu g/mL, respectively. Fluconazole exhibited the lowest activity in vitro (48.4% susceptibility at MIC LT = 8 mu g/mL) with a significant resista...nce rate. The activity of itraconazole was also decreased (48.4% susceptibility at MIC LT = 0.25 mu g/mL). The geometric mean MIC of fiuconazole stood at 15.14 mu g/mL and of itraconazole was 0.144 mu g/mL. Cross-resistance among azoles was not common (3.2%), but the parallel increase in fluconazole and itraconazole MIC has been observed (P LT 0.01). The low rate of susceptibility to fluconazole stresses the need for active antifungal surveillance of C. neoformans and of the corresponding data from different geographic regions. (C) 2012 Elsevier Masson SAS. All rights reserved.
Кључне речи:
Antifungal susceptibility / E-test (R) / Cryptococcus neoformans / Cerebrospinal fluid / Epidemiology / Azole resistanceИзвор:
Journal de Mycologie Medicale, 2012, 22, 3, 243-248Финансирање / пројекти:
- Значај доказивања раних лабораторијских биомаркера за исход инвазивних гљивичних инфекција код нас (RS-MESTD-Basic Research (BR or ON)-175034)
DOI: 10.1016/j.mycmed.2012.06.002
ISSN: 1156-5233
PubMed: 23518082
WoS: 000310408100007
Scopus: 2-s2.0-84865787597
Колекције
Институција/група
VinčaTY - JOUR AU - Trpković, Andreja AU - Pekmezovic, M. AU - Barac, A. AU - Radović Crncević, L. AU - Arsenijević, V. Arsic PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5128 AB - Recently, geographic variations in resistance to agents commonly used in the treatment of cryptococcosis have been reported. Therefore, the antifungal susceptibilities of 31 clinical isolates of Cryptococcus neoformans, collected in Serbia during 10-year period, were investigated. Strains were isolated from cerebrospinal fluid (n = 28) and blood (n = 3), from patients with AIDS (n = 26), lymphoma (n = 4) and kidney transplant recipient (n = 1). The minimal inhibitory concentrations (MICs) of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole were determined by the E-test (R) method. The isolates were highly susceptible to amphotericin B (100% susceptibility at MIC LT 0.5 mu g/mL) and 5-fluorocytosine (87.1% susceptibility at MIC LT = 4 mu g/mL). Geometric mean MIC of amphotericin B and 5-fluorocytosine were 0.102 mu g/mL and 0.396 mu g/mL, respectively. Fluconazole exhibited the lowest activity in vitro (48.4% susceptibility at MIC LT = 8 mu g/mL) with a significant resistance rate. The activity of itraconazole was also decreased (48.4% susceptibility at MIC LT = 0.25 mu g/mL). The geometric mean MIC of fiuconazole stood at 15.14 mu g/mL and of itraconazole was 0.144 mu g/mL. Cross-resistance among azoles was not common (3.2%), but the parallel increase in fluconazole and itraconazole MIC has been observed (P LT 0.01). The low rate of susceptibility to fluconazole stresses the need for active antifungal surveillance of C. neoformans and of the corresponding data from different geographic regions. (C) 2012 Elsevier Masson SAS. All rights reserved. T2 - Journal de Mycologie Medicale T1 - In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia VL - 22 IS - 3 SP - 243 EP - 248 DO - 10.1016/j.mycmed.2012.06.002 ER -
@article{ author = "Trpković, Andreja and Pekmezovic, M. and Barac, A. and Radović Crncević, L. and Arsenijević, V. Arsic", year = "2012", abstract = "Recently, geographic variations in resistance to agents commonly used in the treatment of cryptococcosis have been reported. Therefore, the antifungal susceptibilities of 31 clinical isolates of Cryptococcus neoformans, collected in Serbia during 10-year period, were investigated. Strains were isolated from cerebrospinal fluid (n = 28) and blood (n = 3), from patients with AIDS (n = 26), lymphoma (n = 4) and kidney transplant recipient (n = 1). The minimal inhibitory concentrations (MICs) of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole were determined by the E-test (R) method. The isolates were highly susceptible to amphotericin B (100% susceptibility at MIC LT 0.5 mu g/mL) and 5-fluorocytosine (87.1% susceptibility at MIC LT = 4 mu g/mL). Geometric mean MIC of amphotericin B and 5-fluorocytosine were 0.102 mu g/mL and 0.396 mu g/mL, respectively. Fluconazole exhibited the lowest activity in vitro (48.4% susceptibility at MIC LT = 8 mu g/mL) with a significant resistance rate. The activity of itraconazole was also decreased (48.4% susceptibility at MIC LT = 0.25 mu g/mL). The geometric mean MIC of fiuconazole stood at 15.14 mu g/mL and of itraconazole was 0.144 mu g/mL. Cross-resistance among azoles was not common (3.2%), but the parallel increase in fluconazole and itraconazole MIC has been observed (P LT 0.01). The low rate of susceptibility to fluconazole stresses the need for active antifungal surveillance of C. neoformans and of the corresponding data from different geographic regions. (C) 2012 Elsevier Masson SAS. All rights reserved.", journal = "Journal de Mycologie Medicale", title = "In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia", volume = "22", number = "3", pages = "243-248", doi = "10.1016/j.mycmed.2012.06.002" }
Trpković, A., Pekmezovic, M., Barac, A., Radović Crncević, L.,& Arsenijević, V. A.. (2012). In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia. in Journal de Mycologie Medicale, 22(3), 243-248. https://doi.org/10.1016/j.mycmed.2012.06.002
Trpković A, Pekmezovic M, Barac A, Radović Crncević L, Arsenijević VA. In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia. in Journal de Mycologie Medicale. 2012;22(3):243-248. doi:10.1016/j.mycmed.2012.06.002 .
Trpković, Andreja, Pekmezovic, M., Barac, A., Radović Crncević, L., Arsenijević, V. Arsic, "In vitro antifungal activities of amphotericin B, 5-fluorocytosine, fluconazole and itraconazole against Cryptococcus neoformans isolated from cerebrospinal fluid and blood from patients in Serbia" in Journal de Mycologie Medicale, 22, no. 3 (2012):243-248, https://doi.org/10.1016/j.mycmed.2012.06.002 . .