Title |
Plasmid-based high-resolution melting analysis for accurate detection of rpoB mutations in Mycobacterium tuberculosis isolates from Moroccan patients
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Published in |
BMC Infectious Diseases, August 2017
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DOI | 10.1186/s12879-017-2666-4 |
Pubmed ID | |
Authors |
El Mehdi Bentaleb, My Driss El Messaoudi, Mohammed Abid, Malika Messaoudi, Ali K. Yetisen, Hassan Sefrioui, Saaïd Amzazi, Hassan Ait Benhassou |
Abstract |
Rapid diagnosis of drug resistance in tuberculosis (TB) is pivotal for the timely initiation of effective antibiotic treatment to prevent the spread of drug-resistant strains. The development of low-cost, rapid and robust methods for drug-resistant TB detection is highly desirable for resource-limited settings. We report the use of an in house plasmid-based quantitative polymerase chain reaction-high-resolution melting (qPCR-HRM) analysis for the detection of mutations related to rifampicin-resistant Mycobacterium tuberculosis (MTB) in clinical isolates from Moroccan patients. Five recombinant plasmids containing predominant mutations (S531L, S531W, H526Y and D516V) and the wild-type sequence of the Rifampicin Resistance-Determining Region (RRDR) have been used as controls to screen 45 rifampicin-resistant and 22 rifampicin-susceptible MTB isolates. The sensitivity and the specificity of the qPCR-HRM analysis were 88.8% and 100% respectively as compared to rifampicin Drug Susceptibility Testing (DST). The results of qPCR-HRM and DNA sequencing had a concordance of 100%. Our qPCR-HRM assay is a sensitive, accurate and cost-effective assay for the high-throughput screening of mutation-based drug resistance in TB reference laboratories. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 33% |
Unknown | 2 | 67% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 49 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 8 | 16% |
Student > Ph. D. Student | 7 | 14% |
Student > Master | 6 | 12% |
Other | 3 | 6% |
Professor | 2 | 4% |
Other | 4 | 8% |
Unknown | 19 | 39% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 10 | 20% |
Agricultural and Biological Sciences | 3 | 6% |
Immunology and Microbiology | 2 | 4% |
Nursing and Health Professions | 2 | 4% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 2% |
Other | 7 | 14% |
Unknown | 24 | 49% |