A simple, rapid and economic method for detecting multidrug-resistant tuberculosis
OBJECTIVE: To evaluate multiplex allele specific polymerase chain reaction as a rapid molecular tool for detecting multidrug-resistant tuberculosis. METHODS: Based on drug susceptibility testing, 103 isolates were multidrug-resistant tuberculosis and 45 isolates were sensitive to isonicotinylhydrazi...
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doaj-1e3fcd2699cc4dbe9c8a5b4308ac9aa02020-11-25T03:05:33ZengElsevierBrazilian Journal of Infectious Diseases1678-439117666767110.1016/j.bjid.2013.04.008S1413-86702013000600008A simple, rapid and economic method for detecting multidrug-resistant tuberculosisXia Wang0Junhua Jiao1Weihua Xu2Xiaoyan Chai3Zhenyun Li4Qingjiang Wang5Xinxiang Medical UniversityXinxiang Medical UniversityXinxiang Medical UniversityXinxiang Medical UniversityXinxiang Medical UniversityXinxiang Medical UniversityOBJECTIVE: To evaluate multiplex allele specific polymerase chain reaction as a rapid molecular tool for detecting multidrug-resistant tuberculosis. METHODS: Based on drug susceptibility testing, 103 isolates were multidrug-resistant tuberculosis and 45 isolates were sensitive to isonicotinylhydrazine and rifampin. Primers were designed to target five mutations hotspots that confer resistance to the first-line drugs isoniazid and rifampin, and multiplex allele specific polymerase chain reaction was performed. Whole-genome sequencing confirmed drug resistance mutations identified by multiplex allele specific polymerase chain reaction. RESULTS: DNA sequencing revealed that 68.9% of multidrug-resistant strains have point mutations at codon 315 of the katG gene, 19.8% within the mabA-inhA promoter, and 98.0% at three hotspots within rpoB. Multiplex allele specific polymerase chain reaction detected each of these five mutations, yielding 82.3% sensitivity and 100% specificity for isoniazid resistance, and 97.9% sensitivity and 100% specificity for rifampin resistance as compared to drug susceptibility testing. CONCLUSIONS: The results show that multiplex allele specific polymerase chain reaction is an inexpensive and practical method for rapid detection of multidrug-resistant tuberculosis in developing countries.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000600008&lng=en&tlng=enMycobacterium tuberculosisMultiplex allele specific polymerase chain reaction (MAS-PCR) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xia Wang Junhua Jiao Weihua Xu Xiaoyan Chai Zhenyun Li Qingjiang Wang |
spellingShingle |
Xia Wang Junhua Jiao Weihua Xu Xiaoyan Chai Zhenyun Li Qingjiang Wang A simple, rapid and economic method for detecting multidrug-resistant tuberculosis Brazilian Journal of Infectious Diseases Mycobacterium tuberculosis Multiplex allele specific polymerase chain reaction (MAS-PCR) |
author_facet |
Xia Wang Junhua Jiao Weihua Xu Xiaoyan Chai Zhenyun Li Qingjiang Wang |
author_sort |
Xia Wang |
title |
A simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
title_short |
A simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
title_full |
A simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
title_fullStr |
A simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
title_full_unstemmed |
A simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
title_sort |
simple, rapid and economic method for detecting multidrug-resistant tuberculosis |
publisher |
Elsevier |
series |
Brazilian Journal of Infectious Diseases |
issn |
1678-4391 |
description |
OBJECTIVE: To evaluate multiplex allele specific polymerase chain reaction as a rapid molecular tool for detecting multidrug-resistant tuberculosis. METHODS: Based on drug susceptibility testing, 103 isolates were multidrug-resistant tuberculosis and 45 isolates were sensitive to isonicotinylhydrazine and rifampin. Primers were designed to target five mutations hotspots that confer resistance to the first-line drugs isoniazid and rifampin, and multiplex allele specific polymerase chain reaction was performed. Whole-genome sequencing confirmed drug resistance mutations identified by multiplex allele specific polymerase chain reaction. RESULTS: DNA sequencing revealed that 68.9% of multidrug-resistant strains have point mutations at codon 315 of the katG gene, 19.8% within the mabA-inhA promoter, and 98.0% at three hotspots within rpoB. Multiplex allele specific polymerase chain reaction detected each of these five mutations, yielding 82.3% sensitivity and 100% specificity for isoniazid resistance, and 97.9% sensitivity and 100% specificity for rifampin resistance as compared to drug susceptibility testing. CONCLUSIONS: The results show that multiplex allele specific polymerase chain reaction is an inexpensive and practical method for rapid detection of multidrug-resistant tuberculosis in developing countries. |
topic |
Mycobacterium tuberculosis Multiplex allele specific polymerase chain reaction (MAS-PCR) |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000600008&lng=en&tlng=en |
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