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Kim JA, Yu HJ, Hwang YY, Kang OK, Shim HJ, Jhun BW, Lee NY, Kim TY, Huh HJ. Performance Evaluation of MolecuTech REBA Myco-ID Using HybREAD480 for Identification of Nontuberculous Mycobacteria. Clin Lab 2023; 69. [PMID: 37436396 DOI: 10.7754/clin.lab.2022.221115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
BACKGROUND Rapid and accurate identification of nontuberculous mycobacteria (NTM) species is essential for the diagnosis and treatment of NTM disease. MolecuTech REBA Myco-ID (YD Diagnostics, Yongin, Korea) is a line probe assay for identification of NTM species and can be performed using HybREAD480, an instrument for automating the post-PCR steps. In this study, we assessed the performance of MolecuTech REBA Myco-ID using HybREAD480. METHODS Seventy-four reference strains, including 65 Mycobacterium strains and nine non-Mycobacterium strains within the order Mycobacteriales, were used to determine the analytical specificity of MolecuTech REBA Myco-ID. The clinical performance of this assay was evaluated with 192 clinical Mycobacterium strains, and the assay results were compared to those of multigene sequencing-based typing. RESULTS The accuracy of MolecuTech REBA Myco-ID for the 74 reference strains and 192 clinical strains was 77.0% (57/74; 95% confidence interval [CI], 65.8 - 86.0%) and 94.3% (181/192; 95% CI, 90.0 - 97.1%), respectively. Although some rarely isolated NTM species are misidentified, the most commonly isolated NTM species, including M. avium complex, M. abscessus subsp. abscessus, M. abscessus subsp. massiliense, and M. fortuitum com-plex, were all correctly identified. Of note, all M. lentiflavum strains tested (reference strain, n = 1; clinical strain, n = 10) were misidentified as M. gordonae. CONCLUSIONS MolecuTech REBA Myco-ID using HybREAD480 was accurate for identifying commonly isolated NTM species and for discriminating between M. abscessus subsp. abscessus and M. abscessus subsp. massiliense. However, the main limitations of this assay, including misidentification of some rarely isolated NTM species and cross-reactivity between M. lentiflavum and M. gordonae, should be considered.
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Hwang YY, Kang OK, Park CE, Lee MS, Kim YK, Huh HJ, Lee NY. Trends of Antifungal Agent Susceptibility of Candida Strains Isolated from Blood Cultures in 2009~2018. Korean J Clin Lab Sci 2022. [DOI: 10.15324/kjcls.2022.54.2.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yu-Yean Hwang
- Department of Laboratory Medicine, Samsung Medical Center, Seoul, Korea
| | - On-Kyun Kang
- Department of Laboratory Medicine, Samsung Medical Center, Seoul, Korea
| | - Chang-Eun Park
- Department of Biomedical Laboratory Science, Molecular Diagnostics Research Institute, Namseoul University, Cheonan, Korea
| | - Moo-Sik Lee
- Department of Health Sciences, The Graduate School of Konyang University, Daejeon, Korea
| | - Young-Kwon Kim
- Department of Health Sciences, The Graduate School of Konyang University, Daejeon, Korea
| | - Hee-Jae Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nam-Yong Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Hwang YY, Kang OK, Park CE, Hong SN, Kim YK, Huh HJ, Lee NY. Frequency of Candida Strains Isolated from Candidiasis Patients at A Tertiary Hospital over the Last 10 Years. Korean J Clin Lab Sci 2022. [DOI: 10.15324/kjcls.2022.54.2.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yu-Yean Hwang
- Department of Laboratory Medicine, Samsung Medical Center, Seoul, Korea
| | - On-Kyun Kang
- Department of Laboratory Medicine, Samsung Medical Center, Seoul, Korea
| | - Chang-Eun Park
- Department of Biomedical Laboratory Science, Molecular Diagnostics Research Institute, Namseoul University, Cheonan, Korea
| | - Sung-No Hong
- Department of Clinical Laboratory Science, Dongnam Health University, Suwon, Korea
| | - Young-Kwon Kim
- Department of Health Sciences, The Graduate School of Konyang University, Daejeon, Korea
| | - Hee-Jae Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nam-Yong Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Heo WY, Lee JK, Chung YN, Yoo IY, Kang OK, Sung DH, Cho SY, Huh HJ, Lee NY. First Case of Bacteremia Caused by Coprobacillus catenaformis. Ann Lab Med 2021; 40:421-423. [PMID: 32311857 PMCID: PMC7169632 DOI: 10.3343/alm.2020.40.5.421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/21/2020] [Accepted: 03/30/2020] [Indexed: 11/19/2022] Open
Affiliation(s)
- Won Young Heo
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Kwon Lee
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yoo Na Chung
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - In Young Yoo
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - On-Kyun Kang
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Duk Hyun Sung
- Department of Physical and Rehabilitation Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sun Young Cho
- Division of Infectious Diseases, Department of Internal Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea.,Center for Infection Prevention and Control, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Jae Huh
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nam Yong Lee
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
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Park MS, Yoo IY, Kang OK, Lee JE, Kim DJ, Huh HJ, Lee NY. Evaluation of BacT/Alert FAN Plus Bottles for the Culture of Peritoneal Dialysate. Ann Clin Microbiol 2019. [DOI: 10.5145/acm.2019.22.4.90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Min-Seung Park
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - In Young Yoo
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - On-Kyun Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jung Eun Lee
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dae Joong Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Jae Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nam Yong Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Yoo IY, Huh HJ, Kang OK, Jhun BW, Koh WJ, Lee NY. Advantages of the AdvanSure MDR-TB GenoBlot assay containing disputed rpoB mutation-specific probes in a routine clinical laboratory setting. Respir Med 2018; 146:71-75. [PMID: 30665521 DOI: 10.1016/j.rmed.2018.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 12/02/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND The AdvanSure MDR-TB GenoBlot Assay detects isoniazid- and rifampin-resistant tuberculosis using mutation-specific probes, including probes to disputed rpoB mutations. The aim of this study was to evaluate the clinical usefulness of molecular drug susceptibility testing (DST) using the AdvanSure assay with weekly batch testing in routine clinical laboratory settings in a country with an intermediate tuberculosis burden. METHODS The AdvanSure assay was evaluated against an absolute concentration (AC) method and the Mycobacterial Growth Indicator Tube (MGIT) 960 System, which are phenotypic DST methods, using 496 Mycobacterium tuberculosis (MTB) isolates. We retrospectively reviewed and compared DST results and turnaround times (TATs), the time intervals from MTB culture identification to final reporting, for these methods. RESULTS For rifampin, the AdvanSure assay showed 99.2% (492/496) concordance with both the AC and MGIT methods. AdvanSure also detected an rpoB mutation (D516Y) conferring low-level resistance in three isolates categorized as rifampin-susceptible by both phenotypic DST methods. For isoniazid, AdvanSure concordance rates with the AC method and MGIT DST were 96.6% (479/496) and 95.4% (473/496), respectively. The median TAT of AdvanSure in weekly batch testing was 5.8 days, shorter than the times for the phenotypic DST methods, which were 35.1 days for the AC method and 8.9 days for MGIT DST. CONCLUSIONS AdvanSure shows promising clinical usefulness for rapid detection of rifampin- and/or isoniazid-resistant tuberculosis when used as a complementary method to phenotypic DST assays in weekly batch testing. Furthermore, MTB isolates with disputed mutations for rifampin resistance were detectable by the AdvanSure assay.
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Affiliation(s)
- In Young Yoo
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hee Jae Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - On-Kyun Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Byung Woo Jhun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Won-Jung Koh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
| | - Nam Yong Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
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