Detection of Multidrug-Resistant Tuberculosis Using PCR Compared to the Conventional Proportional Method
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چکیده
Method: One hundred thirty tuberculosis suspected individuals of both sexes and of different ages were included in the study. Sputum samples were cultured on Lowenstein-Jensen (LJ) medium. Resistant strains were tested for the presence of mutations conferring resistance using molecular techniques to amplify 315 base pair (bp) rifampicin (RIF) and 146 bp isoniazid (INH), as markers for MDR among Mycobacterium tuberculosis.
منابع مشابه
Detection of Isoniazid and Rifampin Resistant Strain of Mycobacterium Tuberculosis Isolated from patients in Golestan province (North of Iran)
Abstract Background and objectives: With almost nine million new cases each year, tuberculosis is still one of the most Life-threatening diseases in the World. Distribution of drug resistant strains of M.tuberculosis has a lot of importance. This research was carried out to determine the frequency of drug resistance of M. tuberculosis in strains isolated in Golestan province. Material and...
متن کاملتشخیص موتاسیون در کدون 315 ژن katG، مارکر مقاومت به ایزونیازید در سوشهای مایکوباکتریوم توبرکولوزیس جدا شده از بیماران اصفهان و تهران با روش PCR-RFLP
Background and Objective: Drug resistance to tuberculosis is continuously increasing and is a significant threat to tuberculosis control programs because afew effective drugs are present against Mycobacterium tuberculosis. Although isoniazid (INH) is the most effective drug against tuberculosis, resistance to this drug also develops readily. Mutations in katG, specially the Ser315Thr substituti...
متن کاملشناسایی سویه های مقاوم به اتامبوتول مایکوباکتریوم توبرکلوزیس به روش MAS-PCR و مقایسه آن با روش proportion
Background and purpose: Ethambutol (EMB) is one of the first - line drugs used for anti-tubercular therapy but resistance to this medicine is developed in many parts of the world. EMB resistant strains commonly have embB mutations. Purpose of this research was detection of EMB-resistant Mycobactercium tuberculosis strains isolated from patients by MAS-PCR method and comparison with Proportion...
متن کاملDetection of Isoniazid-Resistant Clinical isolates of Mycobacterium tuberculosis from India using Ser315Thr marker by Comparison of molecular methods
In this study, Substitution at codon Ser315 of katG gene, a reliable marker for isoniazid (INH) resistance was analyzed and compared by three molecular methods such as DNA sequencing, polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) and PCR-single strand conformation polymorphism (PCR-SSCP) in 105 phenotypically resistant isolates obtained from various parts of Ind...
متن کاملRapid identification of extensively and extremely drug resistant tuberculosis from multidrug resistant strains; using PCR-RFLP and PCR-SSCP
BACKGROUND AND OBJECTIVES Resistance in Mycobacterium tuberculosis is caused by mutations in genes encoding drug targets. Investigators have already demonstrated the existence of mutations in codons 88 to 94 in the gyrA gene and also in codons 1400, 1401, and 1483 of rrs gene among extensively and extremely drug resistant tuberculosis (XDR & XXDR-TB) strains. The aim of this study was to identi...
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تاریخ انتشار 2012