Mediavilla-Gradolph, María ConcepciónDe Toro-Peinado, InmaculadaBermúdez-Ruiz, María PilarGarcía-Martínez, María de los ÁngelesOrtega-Torres, MaríaMontiel Quezel-Guerraz, NataliaPalop-Borrás, Begoña2016-06-292016-06-292015Mediavilla-Gradolph MC, De Toro-Peinado I, Bermúdez-Ruiz MP, García-Martínez Mde L, Ortega-Torres M, Montiel Quezel-Guerraz N, et al. Use of MALDI-TOF MS for Identification of Nontuberculous Mycobacterium Species Isolated from Clinical Specimens. Biomed Res Int. 2015; 2015:854078http://hdl.handle.net/10668/2240Journal Article;The aim of this study was to compare the results obtained for identification by MALDI-TOF of nontuberculous mycobacteria (NTM) isolated in clinical samples with those obtained by GenoType Mycobacterium CM/AS (common mycobacteria/additional species). A total of 66 Mycobacterium isolates from various clinical specimens (mainly respiratory) were tested in this study. They were identified using MALDI-TOF Bruker from strains isolated in Lowenstein, following the recommended protocol of heat inactivation and extraction, and were simultaneously analyzed through hybridization by GenoType Mycobacterium from liquid culture MGIT. Our results showed that identification by MALDI-TOF was correct in 98.4% (65/66) of NTM isolated in our clinical practice (M. avium, M. intracellulare, M. abscessus, M. chelonae, M. fortuitum, M. mucogenicum, M. kansasii, and M. scrofulaceum). MALDI-TOF was found to be an accurate, rapid, and cost-effective system for identification of mycobacteria species.enHumanosGenotipoInfecciones por micobacterias no tuberculosasMicobacterias no tuberculosasEspectrometría de masas con desorción-ionización láser asistida por matrizMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Diseases::Bacterial Infections and Mycoses::Bacterial Infections::Gram-Positive Bacterial Infections::Actinomycetales Infections::Mycobacterium Infections::Mycobacterium Infections, NontuberculousMedical Subject Headings::Organisms::Bacteria::Gram-Positive Bacteria::Actinobacteria::Actinomycetales::Mycobacteriaceae::Mycobacterium::Nontuberculous MycobacteriaMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Chemistry Techniques, Analytical::Mass Spectrometry::Spectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationMedical Subject Headings::Phenomena and Processes::Genetic Phenomena::Genotyperesearch article26106617open access10.1155/2015/8540782314-6141PMC4463989