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- 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.
- 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
Background: 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. Methods: 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. Results: 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]. Conclusions: 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.
- Publication
BMC Infectious Diseases, 2015, Vol 15, Issue 1, p325
- ISSN
1471-2334
- Publication type
Article
- DOI
10.1186/s12879-015-1076-8