Journals / Flora İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi / 2004 / Cilt: 9 - Sayı: 1

Molecular epidemiological surveillance of Candida species isolated from patients hospitalized in General Surgery ward

Genel Cerrahi servisindeki hastalardan soyutlanan Candida suşlarının moleküler epidemiyolojik izlemi

Pages
47–53
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

As a result; it can be concluded that the origin of the most of the Candida isolates recovered from various clinical specimens were possibly endogenous but a few of them might have been disseminated via exogenous route because of the isolation of identical and related strains from different patients during the same period.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, epidemiological surveillance of 27 Candida species isolated from hospitalized patients in Dokuz Eylül University hospital general surgery ward between 05 April 2002-13 January 2003 was carried out by random amplified polymorphic DNA (RAPD) polimerase chain reaction.
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Key Findings & Data:Candida species isolated from various clinical specimens of 16 patients were identified by germ tube test, morphology on corn meal tween 80 agar and API 20 C AUX system.
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Conclusion & Impact:As a result; it can be concluded that the origin of the most of the Candida isolates recovered from various clinical specimens were possibly endogenous but a few of them might have been disseminated via exogenous route because of the isolation of identical and related strains from different patients during the same period.
🔬Design:Research Article
📍Scope:2002 Verileri
⚙️Variables:Epidemiyolojik çalışmalar · Polimeraz zincir reaksiyonu · Candida

Abstract

In this study, epidemiological surveillance of 27 Candida species isolated from hospitalized patients in Dokuz Eylül University hospital general surgery ward between 05 April 2002-13 January 2003 was carried out by random amplified polymorphic DNA (RAPD) polimerase chain reaction. Candida species isolated from various clinical specimens of 16 patients were identified by germ tube test, morphology on corn meal tween 80 agar and API 20 C AUX system. The susceptibility of the strains against amphotericin B, fluconazole and ketpconazole were investigated by microdilution method in accordance with National Committee for Clinical Laboratory Standards (NCCLS) M27-A2 standards. Twenty one of the isolates were determined to be Candida albicans, where as 3 and 3 were identified as Candida tropicalis and Candida glabrata, respectively.The minimal inhibitory concentration values of the strains for amphotericin B were not relatively high. None of the isolates were resistant to fluconazole; however one was dose dependent susceptible. RAPD analyses of the strains were performed by using two primers (OPE-03 and RP4-2). Twelve and three different band patterns were observed with both primers for C. albicans and C. tropicalis strains while two band patterns were detected with one primer and three with the other primer for C. glabrata isolates. As a result; it can be concluded that the origin of the most of the Candida isolates recovered from various clinical specimens were possibly endogenous but a few of them might have been disseminated via exogenous route because of the isolation of identical and related strains from different patients during the same period.

Özet

Bu çalışmada, 05 Nisan 2002-13 Ocak 2003 tarihleri arasında Dokuz Eylül Üniversitesi Hastanesi Genel Cerrahi Servisi'nde yatan hastalardan soyutlanan 27 Candida susunun "Random Amplified Polymorphic DNA (RAPD)" polimeraz zincir reaksiyonu (PCR) yöntemi kullanılarak epidemiyolojik izlemi yapılmıştır. Bu serviste yatan 16 hastanın çeşitli klinik örneklerinden soyutlanan Candida suşları çimlenme borusu testi, mısır unu tween 80 ağardaki görünümü ve API 20 C AUX identifikasyon sistemi ile tanımlanmıştır. Ayrıca, suşların amfoterisin B, flukonazol ve ketokonazole duyarlılıkları "National Committee for Clinical Laboratory Standards (NCCLS)" M27-A2 standartlarına uygun olarak mikrodilüsyon yöntemi ile çalışılmıştır. Buna göre suşların 21 'i Candida albicans, üçü Candida tropicalis, üçü ise Candida glabrata olarak belirlenmiştir, izolatların amfoterisin B için elde edilen minimum inhibitor konsantrasyon değerleri beklenenin üzerinde ve göreceli olarak yüksek değildir. Bunun yanında flukonazole dirençli suş saptanmamış ancak bir suş doza bağımlı duyarlı olarak belirlenmiştir. Suşların RAPD analizleri iki farklı primer (OPE-03 ve RP4-2) kullanılarak yapılmıştır. Her iki primer ile C. albicans suşlarında 12, C. tropicalis suşlarında üç bant paterni, C. glabrata suşlarında ise bir primer ile iki, diğeri ile üç farklı bant paterni izlenmiştir. Sonuç olarak, çeşitli klinik örneklerden soyutlanan Candida izolatlarının çoğunun muhtemelen endojen kökenli olduğu, ancak yakın tarihlerde aynı ve yakın ilişkili suşların farklı hastalardan soyutlanması nedeni ile infeksiyonların az bir kısmının da ekzojen yayılım sonucu ortaya çıkmış olabileceği düşünüldü.

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Cite This Article

YÜCESOY, M., MAROL, S., ERGON, M. C. (2004). Molecular epidemiological surveillance of Candida species isolated from patients hospitalized in General Surgery ward. Flora İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi, Cilt: 9 - Sayı: 1, 47–53. https://ajindex.com/articles/224365

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