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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Alonso-Rodríguez, Noelia Martínez-Lirola, Miguel Herránz, Marta Sanchez-Benitez, Marisa Barroso, Pilar Bouza, Emilio de Viedma, Darío García |
| Abstract | During the last few years, PCR-based methods have been developed to simplify and reduce the time required for genotyping Mycobacterium tuberculosis (MTB) by standard approaches based on IS6110-Restriction Fragment Length Polymorphism (RFLP). Of these, MIRU-12-VNTR (Mycobacterial interspersed repetitive units- variable number of tandem repeats) (MIRU-12) has been considered a good alternative. Nevertheless, some limitations and discrepancies with RFLP, which are minimized if the technique is complemented with spoligotyping, have been found. Recently, a new version of MIRU-VNTR targeting 15 loci (MIRU-15) has been proposed to improve the MIRU-12 format. We evaluated the new MIRU-15 tool in two different samples. First, we analyzed the same convenience sample that had been used to evaluate MIRU-12 in a previous study, and the new 15-loci version offered higher discriminatory power (Hunter-Gaston discriminatory index [HGDI]: 0.995 vs 0.978; 34.4% of clustered cases vs 57.5%) and better correlation (full or high correlation with RFLP for 82% of the clusters vs 47%). Second, we evaluated MIRU-15 on a population-based sample and, once again, good correlation with the RFLP clustering data was observed (for 83% of the RFLP clusters). To understand the meaning of the discrepancies still found between MIRU-15 and RFLP, we analyzed the epidemiological data for the clustered patients. In most cases, splitting of RFLP-clustered patients by MIRU-15 occurred for those without epidemiological links, and RFLP-clustered patients with epidemiological links were also clustered by MIRU-15, suggesting a good epidemiological background for clustering defined by MIRU-15. The data obtained by MIRU-15 suggest that the new design is very efficient at assigning clusters confirmed by epidemiological data. If we add this to the speed with which it provides results, MIRU-15 could be considered a suitable tool for real-time genotyping. |
| Related Links | https://bmcmicrobiol.biomedcentral.com/counter/pdf/10.1186/1471-2180-8-34.pdf |
| Ending Page | 9 |
| Page Count | 9 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712180 |
| DOI | 10.1186/1471-2180-8-34 |
| Journal | BMC Microbiology |
| Issue Number | 1 |
| Volume Number | 8 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2008-02-24 |
| Access Restriction | Open |
| Subject Keyword | Microbiology Biological Microscopy Mycology Parasitology Virology Life Sciences Epidemiological Link RFLP Type Recent Transmission Mycobacterial Intersperse Repetitive Unit RFLP Data |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology Microbiology (medical) |
| Journal Impact Factor | 4/2023 |
| 5-Year Journal Impact Factor | 4.6/2023 |
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