Journals / Mikrobiyoloji Bülteni / 2011 / Cilt: 45 - Sayı: 1

Resistance rates of mycobacterium tuberculosis complex strains isolated from clinical specimens

Klinik örneklerden izole edilen mycobacterium tuberculosis kompleks suşlarının antibiyotiklere direnç oranları

Pages
36–42
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Our findings indicated that the rates of mono and multidrug resistant M.tuberculosis complex strains were significantly lower than the rates previously reported from our region and similar to the average country-base resistance rates reported by the Ministry of Health.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study was to investigate isoniazid, rifampicin, streptomycin and ethambutol resistance rates of Mycobacterium tuberculosis complex strains isolated from clinical specimens in the Mycobacteriology Laboratories of Karadeniz Technical University Hospital between January 2005-March 2010.
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Key Findings & Data:A total of 212 M.tuberculosis complex strains, 152 (71.7%) of which were isolated from respiratory specimens and 60 (28.3%) from non-respiratory system specimens, were included to the study.
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Conclusion & Impact:Our findings indicated that the rates of mono and multidrug resistant M.tuberculosis complex strains were significantly lower than the rates previously reported from our region and similar to the average country-base resistance rates reported by the Ministry of Health.
🔬Design:Research Article
📍Scope:2005 Verileri
⚙️Variables:Domain Parameters

Abstract

The aim of this study was to investigate isoniazid, rifampicin, streptomycin and ethambutol resistance rates of Mycobacterium tuberculosis complex strains isolated from clinical specimens in the Mycobacteriology Laboratories of Karadeniz Technical University Hospital between January 2005-March 2010. A total of 212 M.tuberculosis complex strains, 152 (71.7%) of which were isolated from respiratory specimens and 60 (28.3%) from non-respiratory system specimens, were included to the study. M.tuberculosis complex strains were determined by polymerase chain reaction using primers specific for the IS6110 gene region. Single isolate of each patient were enrolled in the study. Antituberculosis drug susceptibility testing was performed by BACTEC MGIT 960 (Becton Dickinson, USA). Of the 212 isolates, 157 (74.05%) were susceptible to all of the four antimycobacterial agents while 55 (25.9%) were found resistant to one or more of the drugs. The monodrug resistance rates were found as 6.1% for isoniazid, 0.5% for rifampicin, 5.2% for streptomycin, and 2.4% for ethambutol. The number of multidrug resistant isolates characterized with resistance to isoniazid and rifampicin were 10 (4.8%). Our findings indicated that the rates of mono and multidrug resistant M.tuberculosis complex strains were significantly lower than the rates previously reported from our region and similar to the average country-base resistance rates reported by the Ministry of Health. Continuous monitoring of M.tuberculosis antimicrobial resistance at regional level would greatly aid to the success of the tuberculosis surveillance program in Turkey.

Özet

Bu çalışmanın amacı, Ocak 2005-Mart 2010 tarihleri arasında Karadeniz Teknik Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı Mikobakteriyoloji Laboratuvarında izole edilen Mycobacterium tuberculosis kompleks suşlarında izoniazid, rifampisin, streptomisin ve etambutol direnç oranlarının belirlenmesidir. Çalışmaya 152 (%71.7)’si solunum sistemi örneğinden, 60 (%28.3)’ı solunum sistemi dışı örneklerden izole edilen toplam 212 M.tuberculosis kompleks suşu dahil edilmiştir. M.tuberculosis kompleks suşları, IS6110 gen bölgesine özgül primerler kullanılarak polimeraz zincir reaksiyonu ile tanımlanmıştır. Her hasta için tek bir izolat çalışmaya alınmış, bu izolatların antibiyotik dirençleri MGIT 960 (Becton Dickinson, ABD) sistemi kullanılarak araştırılmıştır. Çalışmamızda, 212 MTC suşunun 157 (%74)’si test edilen her dört ilaca duyarlı bulunurken, 55 (%25.9)’inin bir veya birden fazla ilaca karşı dirençli olduğu gözlenmiştir. İzole edilen suşlarda tekli ilaç dirençleri izoniazid için %6.1, rifampisin için %0.5, streptomisin için %5.2, etambutol için %2.4 olarak tespit edilmiştir. En az izoniazid ve rifampisine direnç gösteren çok ilaca dirençli M.tuberculosis kompleks sayısının 10 (%4.8) olduğu belirlenmiştir. Bulgularımız, hastanemize başvuran hastalarda gerek tek ilaca dirençli, gerekse çok ilaca dirençli tüberküloz olgularının daha önce bölgemizde yapılan çalışmalarda elde edilen oranlara göre daha düşük, Sağlık Bakanlığı verilerinde belirtilen Türkiye ortalamaları ile benzer olduğunu göstermektedir. Bölgesel düzeyde elde edilen bu verilerin sürekli olarak takibinin, ülkemizde başarılı bir tüberküloz sürveyans programının uygulanmasına büyük katkı sağlayacağı görüşüne varılmıştır.

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Cite This Article

AYDIN, F., KAKLIKKAYA, N., BAYRAMOĞLU, G., ÖZKUL, G., BURUK, K., DİNÇ, U., KÖSE, T., DEDE, R. (2011). Resistance rates of mycobacterium tuberculosis complex strains isolated from clinical specimens. Mikrobiyoloji Bülteni, Cilt: 45 - Sayı: 1, 36–42. https://ajindex.com/articles/298682

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