Evaluación de una técnica de hibridación reversa para identificación rápida de micobacterias en Chile

  • Leiva C T
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Abstract

Objective: Identification for Mycobacterium assay based in the new technology of reverse hybridization DNA probe assay was evaluated (Line Probe Assays-LiPAs). Methods: 74 strains belonging to 23 mycobacterial species or complex classified previously by classical biochemical methods, genetic probes and PRA (patterns of restriction analysis), with and without specific pattern expected to be identified at specie level were analysed.The utilized test, GenoType CM (Hain Lifescience, Nehren, Alemania), is able of identifying 14 of the most common mycobacterial species after a multiplex PCR technique targeting a 23S rRNA gene region followed by reverse hybridization technology. Results: Sensitivity of 94.0% (95% CI: 84.4-98.0%) and specificity of 88.0% (95% CI:46.7-99.3%) were obtained with the assay. Conclusion: GenoType CM is an appropriated tool for the identification of Mycobacteria, rapid, sensitive, operational in the current working conditions of the National Reference Laboratory of Mycobacteria in Chile and it might constitute a real breakthrough for shortening the time delay in the procedure, providing a better opportunity to use treatment only in cases where it is required.

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APA

Leiva C, T. (2012). Evaluación de una técnica de hibridación reversa para identificación rápida de micobacterias en Chile. Revista Chilena de Enfermedades Respiratorias, 28(1), 9–15. https://doi.org/10.4067/s0717-73482012000100002

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