Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi

Yıl: 2014 Cilt: 71 Sayı: 3 Sayfa Aralığı: 131 - 140 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi

Öz:
AMAÇ: Candida türlerinin neden olduğu invaziv fungal enfeksiyonlar önemli ölçüde artmıştır. Kandidemiler sadece mortalite ile ilişkili olmayıp, aynı zamanda hastanede kalış süresinin uzamasına ve tıbbi bakım maliyetinin artmasına da sebep olmaktadır. Candida albicans ve non-albicans Candida türlerinin neden olduğu kandidemilerde, hastaların klinik bulgularının aynı olmasına rağmen bu türlerin antifungal ilaçlara duyarlılıkları da farklıdır. Bu çalışmada; Candida kan izolatlarının antifungal duyarlılık verilerini sunmaktadır. YÖNTEMLER: 35 Candida albicans, 25 Candida tropicalis, 15 Candida parapsilosis, 8 Candida glabrata, 4 Candida krusei ve 3 Candida kefyr olmak üzere toplam 90 Candida izolatı incelendi. Bu türlerin amfoterisin B, flukonazol ve vorikonazole karşı antifungal duyarlılıkları %2 glukozla zenginleştirilmiş RPMI 1640 agar besiyeri kullanılarak mikrodilüsyon yöntemi (CLSI M27-A3) ve 0,5 μg/mL metilen mavisi ve %2 glukozla zenginleştirilmiş Mueller-Hinton agar besiyeri kullanılarak disk diffüzyon (CLSI M44-A2) yöntemi ile belirlendi. BULGULAR: Candida izolatları mikrodilüsyon yöntemi ile %87,7 oranında, disk diffüzyon yöntemi ile %82,2 oranında flukonazole duyarlı bulundu. Mikrodilüsyon yöntemi ile bu izolatların %6,6sı (%8,5 C. albicans, %4,0 C. tropicalis ve % 25,0 C. glabrata) flukonazole karşı doza bağlı duyarlı, %5,5 ise dirençli olarak belirlendi. Dirençli suşların dördü C. krusei (%100), biri ise C. albicans (%2,8) idi. Disk diffüzyon yöntemi ile Candida suşlarının %12,2si doza bağlı duyarlı (%17,1 C. albicans, %12,0 C. tropicalis and %25,0 C. glabrata) olarak, %5,5i [bir izolat C. albicans (%2,8), dört izolat C. krusei (%100)] ise flukonazole dirençli olarak belirlendi. Bütün suşlar amfoterisin B ve vorikonazole duyarlı olarak bulundu. SONUÇ: Amfoterisin B ve vorikonazollün Candida izolatlarına karşı in-vitro aktivitesinin yüksek olduğu belirlendi. Antifungal ilaçlara direnç artmaktadır ki bundan dolayı fungal patojenlerin duyarlılık profillerini değerlendirmek giderek önem kazanmaktadır.
Anahtar Kelime:

Konular: Farmakoloji ve Eczacılık

Activities of amphotericin B, fluconazole and voriconazole against Candida bloodstream isolates determined by broth microdilution and disk diffusion methods

Öz:
OBJECTIVE: Invasive fungal infections caused by Candida species have increased significantly. Candidemia is not only associated with a mortality, but also extends the duration of hospital stay and increases the cost for medical care. Although, the clinical presentations of the patients with candidemia caused by Candida albicans and non-albicans Candida species are indistinguishable, the susceptibilities to antifungal agents of these species are different. This study presents data on anti fungal susceptibility profiles of Candida bloodstream isolates. METHODS: We tested a total of 90 strains, including 35 strains of Candida albicans, 25 strains of Candida tropicalis, 15 strains of Candida parapsilosis, 8 strains of Candida glabrata, 4 strains of Candida krusei and 3 strains of Candida kefyr. Susceptibility to amphotericin B, fluconazole and voriconazole was determined by Clinical Laboratory Standards Institute broth micro dilution method (CLSI M27-A3) using RPMI 1640 as test medium supplemented with 2% glucose and disk diffusion methods were performed according to CLSI M44-A2 using methylene blue (0.5 μg/mL) and glucose (2%) enriched Mueller-Hinton agar. RESULTS: In this study, 87.7%, 82.2% of Candida isolates were susceptible to fluconazole with the broth microdilution method and the disk diffusion method respectively, based on CLSI breakpoints. A further 6.6% were classified as susceptible-dose-dependent (8.5% C. albicans, 4.0% C. tropicalis and 25.0% C. glabrata) and fluconazole resistance was detected in 5.5% of all isolates by microdilution method. Four isolates of these strains were C. krusei (100%) and one strain was C. albicans (2.8%). 12.2% of Candida spp. were classified as susceptible-dose-dependent (17.1% C. albicans, 12.0% C. tropicalis, and 25.0% C. glabrata) and fluconazole resistance was detected in 5.5% of all isolates. Four isolates of these strains were C. krusei (100%) and one strain was C. albicans (2.8%) by disk diffusion method. All isolates were susceptible to amphotericin B and voriconazole using by two methods. CONCLUSION: Voriconazole and amphotericin B were active in-vitro against yeasts. As anti fungal drug resistance may become more frequent, it is increasingly important to evaluate current anti fungal susceptibility profiles of fungal pathogens.
Anahtar Kelime:

Konular: Farmakoloji ve Eczacılık
Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA YİĞİT N, AKTAŞ E (2014). Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. , 131 - 140.
Chicago YİĞİT Nimet,AKTAŞ Esin Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. (2014): 131 - 140.
MLA YİĞİT Nimet,AKTAŞ Esin Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. , 2014, ss.131 - 140.
AMA YİĞİT N,AKTAŞ E Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. . 2014; 131 - 140.
Vancouver YİĞİT N,AKTAŞ E Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. . 2014; 131 - 140.
IEEE YİĞİT N,AKTAŞ E "Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi." , ss.131 - 140, 2014.
ISNAD YİĞİT, Nimet - AKTAŞ, Esin. "Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi". (2014), 131-140.
APA YİĞİT N, AKTAŞ E (2014). Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. Türk Hijyen ve Deneysel Biyoloji Dergisi, 71(3), 131 - 140.
Chicago YİĞİT Nimet,AKTAŞ Esin Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. Türk Hijyen ve Deneysel Biyoloji Dergisi 71, no.3 (2014): 131 - 140.
MLA YİĞİT Nimet,AKTAŞ Esin Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. Türk Hijyen ve Deneysel Biyoloji Dergisi, vol.71, no.3, 2014, ss.131 - 140.
AMA YİĞİT N,AKTAŞ E Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. Türk Hijyen ve Deneysel Biyoloji Dergisi. 2014; 71(3): 131 - 140.
Vancouver YİĞİT N,AKTAŞ E Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi. Türk Hijyen ve Deneysel Biyoloji Dergisi. 2014; 71(3): 131 - 140.
IEEE YİĞİT N,AKTAŞ E "Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi." Türk Hijyen ve Deneysel Biyoloji Dergisi, 71, ss.131 - 140, 2014.
ISNAD YİĞİT, Nimet - AKTAŞ, Esin. "Amfoterisin B, flukonazol ve vorikonazollünün kan kültürlerinden izole edilen Candida türlerine karşı antifungal aktivitesinin mikrodilüsyon ve disk diffüzyon yöntemleri ile belirlenmesi". Türk Hijyen ve Deneysel Biyoloji Dergisi 71/3 (2014), 131-140.