Title |
Separation of Mycobacterium abscessus into subspecies or genotype level by direct application of peptide nucleic acid multi-probe- real-time PCR method into sputa samples
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Published in |
BMC Infectious Diseases, August 2015
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DOI | 10.1186/s12879-015-1076-8 |
Pubmed ID | |
Authors |
Kijeong Kim, Seok-Hyun Hong, Byoung-Jun Kim, Bo-Ram Kim, So-Young Lee, Ga-Na Kim, Tae Sun Shim, Yoon-Hoh Kook, Bum-Joon Kim |
Abstract |
Recently, we introduced a novel peptide nucleic acid (PNA) multi-probe real time PCR method targeting the hsp65 gene (hsp65 PNA RT-PCR) to distinguish Mycobacterium abscessus groups. Here, we evaluated the usefulness of the hsp65 PNA RT-PCR for the direct identification of the M. abscessus group at the subspecies and genotype levels from sputa samples. The method was applied to total sputa DNA from 60 different patients who were identified as having mycobacterial infections via rpoB PCR restriction analysis of the same cultures. The hsp65 PNA RT-PCR method had higher sensitivity than the multi-probe real-time PCR assay targeting hsp65 (HMPRT-PCR) for the detection of M. abscessus from sputum [96.7 % (29/30 samples) vs. 70 % (21/30 samples); 100 % specificity]. These results suggest that the PNA-based method is feasible for the detection of M. abscessus members not only from cultures but also directly from sputa. |
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Unknown | 2 | 100% |
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Members of the public | 2 | 100% |
Mendeley readers
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Unknown | 20 | 100% |
Demographic breakdown
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Other | 4 | 20% |
Student > Ph. D. Student | 3 | 15% |
Researcher | 3 | 15% |
Lecturer | 1 | 5% |
Unspecified | 1 | 5% |
Other | 2 | 10% |
Unknown | 6 | 30% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 3 | 15% |
Biochemistry, Genetics and Molecular Biology | 3 | 15% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 5% |
Environmental Science | 1 | 5% |
Unspecified | 1 | 5% |
Other | 4 | 20% |
Unknown | 7 | 35% |