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Título: | Clinical validity of bis(methylthio)gliotoxin for the diagnosis of invasive aspergillosis |
Autor: | Vidal-García, Matxalen; Domingo, María Pilar CSIC ORCID; Rueda, Beatriz de; Roc, Lourdes; Delgado, Pilar CSIC ORCID; Revillo, M. José; Pardo, Julián; Gálvez Buerba, Eva Mª CSIC ORCID ; Rezusta, Antonio | Palabras clave: | Bis(methylthio)gliotoxin Invasive aspergillosis Diagnostic accuracy Galactomannan Gliotoxin |
Fecha de publicación: | 17-dic-2015 | Editor: | Springer Nature | Citación: | Applied Microbiology and Biotechnology 100: 2327-2334 (2016) | Resumen: | Early and accurate diagnosis of invasive aspergillosis (IA) is one of themost critical steps needed to efficiently treat the infection and reduce the high mortality rates that can occur. We have previously found that the Aspergillus spp. secondary metabolite, bis(methylthio)gliotoxin (bmGT), can be detected in the serum from patients with possible/probable IA. Thus, it could be used as a diagnosis marker of the infection. However, there is no data available concerning the sensitivity, specificity and performance of bmGT to detect the infection. Here,we have performed a prospective study comparing bmGT detection with galactomannan (GM), the most frequently used and adopted approach for IA diagnosis, in 357 sera from 90 episodes of patients at risk of IA. Our results, involving 79 patients that finally met inclusion criteria, suggest that bmGT presents higher sensitivity and positive predictive value (PPV) than GM and similar specificity and negative predictive value (NPV). Importantly, the combination of GM and bmGT increased the PPV (100 %) and NPV (97.5 %) of the individual biomarkers, demonstrating its potential utility in empirical antifungal treatment guidance and withdrawal. These results indicate that bmGT could be a good biomarker candidate for IA diagnosis and, in combination with GM, could result in highly specific diagnosis of IA and management of patients at risk of infection. | Versión del editor: | https://doi.org/10.1007/s00253-015-7209-6 | URI: | http://hdl.handle.net/10261/170802 | DOI: | 10.1007/s00253-015-7209-6 | ISSN: | 0175-7598 |
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