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Parvin Heidarieh 1 Article
Rapid Detection of Rifampicin- and Isoniazid-Resistant Mycobacterium tuberculosis using TaqMan Allelic Discrimination
Davood Darban-Sarokhalil, Mohammad J. Nasiri, Abbas A.I. Fooladi, Parvin Heidarieh, Mohammad M. Feizabadi
Osong Public Health Res Perspect. 2016;7(2):127-130.   Published online April 30, 2016
DOI: https://doi.org/10.1016/j.phrp.2016.01.003
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  • 3 Crossref
AbstractAbstract PDF
Objectives
Multidrug-resistant tuberculosis (MDR-TB) is a global problem that many countries are challenged with. Rapid and accurate detection of MDR-TB is critical for appropriate treatment and controlling of TB. The aim of the present study was to evaluate the TaqMan allelic discrimination without minor groove binder (MGB) as a rapid, efficient, and low-cost method for detection of drug resistant strains of Mycobacterium tuberculosis.
Methods
A total of 112 M. tuberculosis isolates from cases with diagnosed TB were subjected to drug susceptibility testing (DST), using the proportion method. Resistant isolates were tested for characterization of mutations in the rpoB and KatG genes by TaqMan genotyping.
Results
Of 112 M. tuberculosis isolates for which DST was performed, three, one, and two isolates were MDR, rifampin (RIF) resistant, and isoniazid (INH) resistant, respectively. According to the threshold cycle (Ct) and curve pattern of mutants, TaqMan probes detect all of the mutations in the analyzed genes (katG 315, AGC→ACC, rpoB 531, TCG→TTG, and rpoB 531, TCG→TGG).
Conclusion
The present study suggests that drug-resistant strains of M. tuberculosis can be detected by pattern’s curve or Ct with TaqMan probes without MGB in real-time polymerase chain reaction (PCR).

Citations

Citations to this article as recorded by  
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  • Drug resistance and the genotypic characteristics of rpoB and katG in rifampicin- and/or isoniazid-resistant Mycobacterium tuberculosis isolates in central Vietnam
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  • The Value of the inhA Mutation Detection in Predicting Ethionamide Resistance Using Melting Curve Technology
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    Infection and Drug Resistance.2021; Volume 14: 329.     CrossRef

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