Journals / Eurasian Journal of Medicine / 2014 / Cilt: 46 - Sayı: 1

Beş antifungal ilacın klinik örneklerden izole edilen dermatofit türlerine karşı in vitro aktivitesinin E-test yöntemi ile araştırılması

Investigation of in vitro activity of five antifungal drugs against dermatophytes species isolated from clinical samples using the E-Test method

Pages
26–31
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: E-test seems to be an alternative method to MIC-determination of antifungal drugs for dermatophytes species, since it is a less-laborious methodology and results could be obtained faster.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Dermatomycosis is an infection with fungi related tothe skin: glabrous skin, hair and/or nails.
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Key Findings & Data:The aim of this studywas to investigate the susceptibility of the different species of dermatophyte strains isolated clinical specimens to five antifungal agentsusing the E-test method.Materials and Methods: A total of 66 specimens were collected from the nails, feet, inguinal region, trunk and hands.
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Conclusion & Impact:Conclusion: E-test seems to be an alternative method to MIC-determination of antifungal drugs for dermatophytes species, since it is a less-laborious methodology and results could be obtained faster.
🔬Design:Research Article
📍Scope:66 specimens
⚙️Variables:Domain Parameters

Abstract

Objective: Dermatomycosis is an infection with fungi related tothe skin: glabrous skin, hair and/or nails. Oral treatment of fungalinfections in dermatology has become a preferred modality for themanagement of these very common conditions. Although there areincreasing numbers of antifungals available for treatment of dermatophytes, some cases and relapses have been unresponsive to treatment. The determination of fungus in-vitro antifungal susceptibilityhas been reported to be important for the ability to eradicate dermatophytes. It is necessary to perform antifungal susceptibility test-ing of dermatophytes. E-test (AB Biodisk, Sweden) is a rapid, easy-to-perform in-vitro antifungal susceptibility test. The aim of this studywas to investigate the susceptibility of the different species of dermatophyte strains isolated clinical specimens to five antifungal agentsusing the E-test method.Materials and Methods: A total of 66 specimens were collected from the nails, feet, inguinal region, trunk and hands. These strains tested MIC endpoints of E-test for amphotericin B, fluconazole, itra- conazole, caspofungin, and ketoconazole were read after 72, and 96 hours incubation for each strain on RPMI 1640 agar. Results: The dermatophytes tested included Trichophyton rubrum 43 (65.1%), Trichophyton mentagrophytes 7 (10.7%), Microsporum canis 5 (7.6%), Trichophyton tonsurans 5 (7.6%), Epidermophyton floccosum 4 (6.0%) and Trichophyton violaceum 2 (3.0%). The most active agent against all dermatophytes species was caspofungin with a minimal inhibitory concentration (MIC) range (μg/mL-1) (0.02-3, 0.032- 4, 0.125-0.50, 0.032-2, 0.25-0.50, 0.125-0.50) and it raconazole with an MIC range (μg/mL-1) (0.038-1.5, 0.094-1.5, 1-32, 0.016-0.50, 0.25-0.50, 0.125-0.50). The least active agent was fluconazole with an MIC range (μg/mL-1) (0, 19-48, 2-256, 2-8, 256, 256, 8-24). Conclusion: E-test seems to be an alternative method to MIC-determination of antifungal drugs for dermatophytes species, since it is a less-laborious methodology and results could be obtained faster.

Özet

Amaç: Dermatomikozlar mantarlar tarafından oluşturulan deri, saç ve tırnakları tutan enfeksiyonlardır. Dermatolojide mantar enfeksiyonlarının oral tedavisi yaygın olarak tercih edilen yöntem haline gelmiştir. Dermatofitlerin tedavisi için kullanılan antifungallerin sayısının artmasına rağmen bazı durumlarda tedaviye yanıtsızlık venüksler gelişmektedir. İn-vitro antifungal duyarlılığın belirlenmesinin dermatofitlerin etkili olarak tedavi edilmesi için önemli olduğubildirilmektedir. Antifungal duyarlılığın belirlenmesinde yöntemlerönemlidir. E-test (AB Biodisk, İsveç) hızlı ve kolay uygulanabilir birduyarlılık yöntemidir. Bu çalışmanın amacı, klinik örneklerden izoleedilen farklı dermatofit türlerinin beş antifungal ilaca karşı duyarlılık- larını E-test yöntemi ile belirlemektir. Gereç ve Yöntem: Tırnak, ayak, inguinal bölge, gövde ve el/bilek olmak üzere değişik anatomik bölgelerden alınan toplam 66 klinik örnek çalışmaya dâhil edildi. Bu örneklerden izole edilen dermatofit suşlarının duyarlılıkları, amfoterisin B, flukonazol, itrakonazol, kaspo- fungin ve ketokonazol’e karşı RPMI 1640 agar besiyerinde 72 ve 96 saat süre ile E-test yöntemi kullanılarak çalışıldı. Bulgular: Çalışmaya dâhil edilen dermatofit türleri Trichophyton rubrum 43 (%65,1), Trichophyton mentagrophytes 7 (%10,7), Microsporum canis 5 (%7,6), Trichophyton tonsurans 5 (%7,6), Epidermophyton floccosum 4 (%6,0) and Trichophyton violaceum 2 (%3,0) olarak belirlendi. Tüm dermatofit türlerine karşı en etkili antifungaller (0,02-3, 0,032-4, 0,125-0,50, 0,032-2, 0,25-0,50, 0,125-0,50) MIC (μg/mL-1) aralıkları ile kaspofungin ve (0,038-1,5, 0,094-1,5, 1-32, 0,016-0,50, 0,25-0,50, 0,125-0,50) MIC (μg/mL-1) aralıkları ile itrakonazol olarak bulundu. En az etkili antifungal ise (0, 19-48, 2-256, 2-8, 256, 256, 8-24) MIC (μg/mL-1) aralıkları ile flukonazol olarak bulundu. Sonuç: E-test dermatofit türlerinin antifungal duyarlılığının belirlenmesinde daha az zahmetli ve sonuçların daha hızlı elde edilebilir olması ile alternatif bir yöntem gibi görünmektedir.

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Cite This Article

AKTAS, A. E., AKTAS, A., YİGİT, N., GOZUBUYUK, S. G. (2022). Beş antifungal ilacın klinik örneklerden izole edilen dermatofit türlerine karşı in vitro aktivitesinin E-test yöntemi ile araştırılması. Eurasian Journal of Medicine, Cilt: 46 - Sayı: 1, 26–31. https://ajindex.com/articles/509152

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References (4)

  1. Ebrahim HM, Asaad AM, Amer A. Antifungal susceptibility patterns of dermatophytes clinical isolates from dermatophytosis patients before and after therapy. Egptian J of Med Microbiol 2010; 19: 41-46
  2. Fernandez- Torres B, Carrillo AJ, Martin E, et al. In vitro activities of 10 antifungal drugs against 508 dermatophytes strains. Antimicrob Agents and Chemother 2001; 45: 2524-8. [CrossRef] 3. Karaca N, Koç AN. In vitro susceptibility testing of dermatophytes: comparison of disk diffusion and reference broth dilution method. Diagn Microbiol Infect Dis 2004; 48: 259-64. [CrossRef] 4. Fernandez- Torres B, Carrillo-Munoz A, Ortoneda M, et al. Interlaboratory evaluation of the E-test for antifungal susceptibility testing of dermatophytes. Med Mycol 2003; 41: 125-130. [CrossRef] 5. Fernandez-Torres B, Carrillo-Munoz A, Inza I, et al. Effect of culture medium on the disk diffusion method for determining antifungal susceptibilities of dermatophytes. Antimicrob Agents and Chemother 2006; 50: 2222-4. [CrossRef] 6. Pakshir K, Bahaedinie L, Rezaei Z, et al. In vitro activity of six antifungal against clinically important dermatophytes. Jundishapur Journal of Microbiology 2009; 2: 158-163
  3. Araujo CR, Miranda KC, Fernandes OFL, et al. In-vitro susceptibility testing of dermatophytes isolated in Goiana, Brazil, against five antifungal agents by broth microdilution method. Rev Inst Med Trop Sao Paulo 2009; 51: 9-12. [CrossRef] 8. Siqueira ER, Ferreira JC, Pedrosa RS, et al. Dermatophyte susceptibilities to antifungal azole agents tested in vitro by broth macro and microdilution methods. Rev Inst Med Trop Sao Paulo 2008; 50: 1-5. [CrossRef] 9. da Silva Barros ME, de Assis Santos D, Soares Hamdan J. Antifungal susceptibility testing of trichophyton rubrum by E-test. Arch Dermatol Res 2007; 299: 107-9. [CrossRef] 10. Pfaller MA, Messer SA, Mills K, et al. In-vitro Susceptibility Testing of Filamentous Fungi: comparison of E-test and Reference Microdilution Methods for Determining Itraconazole MICS. J Clin Microbiol 2000; 38: 3359-61
  4. Favel A, Michel-Nguyen A, Chastin C, et al. In-vitro susceptibility patterns of candida lusitaniae and evaluation of the E-test method. J Antimicrob Chemother 1997; 39: 591-6. [CrossRef] 12. Sarifakioglu E, Seçkin D, Demirbilek M, et al. In vitro antifungal susceptibility patterns of dermatophyte strains causing tinea unguium. Clin Exp Dermatol 2007; 32: 675-9. [CrossRef] 13. Çetinkaya Z, Kiraz N, Karaca S, et al. Antifungal susceptibi