Identification of Aspergillus tubingensis in a primary skin infection
Por:
Frias-De-Leon, M. G., Rosas-de Paz, E., Arenas, R., Atoche, C., Duarte-Escalante, E., Molina de Soschin, D., Acosta-Altamirano, G., Reyes-Montes, M. R.
Publicada:
1 jun 2018
Ahead of Print:
1 ene 2018
Categoría:
Infectious diseases
Resumen:
Objective. - Aspergillus section Nigri comprises a group of related
species that include Aspergillus niger, A. welwitschiae, A. carbonarius,
A. brasiliensis and A. tubingensis. Some of these species are
morphologically very similar to A. niger but exhibit different patterns
of susceptibility to antifungal agents; such is the case for A.
tubingensis. Therefore, when diagnosing aspergillosis, it is important
to identify the pathogen at the species level. This study aimed to
identify the species of an Aspergillus spp. isolate (MM-82) obtained
from a patient with a dermatosis localized to the right leg.
Materials and methods. - The MM-82 isolate was examined for macro- and
microscopic morphology, conidia size and thermotolerance, and a
phylogenetic analysis of a benA gene segment was performed for molecular
identification. Susceptibility to antifungals was determined using
antifungal microdilution according to the methodology of European
Society of Clinical Microbiology and Infectious Diseases (EUCAST).
Results. - Based on its phenotypic characteristics and the phylogenetic
analysis of the sequence of a benA gene segment, the MM-82 isolate was
identified as A. tubingensis. This fungus did not show resistance to
antifungal agents commonly used for treatment.
Conclusion. - This study demonstrated that A. tubingensis can cause skin
infection; this constitutes the first report of a case of aspergillosis
caused by A. tubingensis in Mexico. (C) 2018 The Authors. Published by
Elsevier Masson SAS.
Filiaciones:
Frias-De-Leon, M. G.:
Hospital Regional de Alta Especialidad Ixtapaluca, Carretera Federal México–Puebla Km, 34.5, Pueblo de Zoquiapan, Ixtapaluca, Mexico
Hosp Reg Alta Especialidad Ixtapaluca, Carretera Fed Mexico Puebla Km 34-5, Ixtapaluca 56530, Mexico
Rosas-de Paz, E.:
Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, México Cd., Mx., Mexico
UNAM, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ 3000, Mexico Cd Mx 04510, Mexico
Arenas, R.:
Departamento de Dermatología, Sección de Micología, Hospital General Dr. Manuel Gea González, México, Cd. Mx., Mexico
Hosp Gen Dr Manuel Gea Gonzalez, Dept Dermatol, Secc Micol, Mexico Cd Mx, Mexico
Atoche, C.:
Centro Dermatológico de Yucatán “Dr. Fernando Latapí”, Mérida, Yucatán, Mexico
Ctr Dermatol Yucatan Dr Fernando Latapi, Merida, Yucatan, Mexico
Duarte-Escalante, E.:
Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, México Cd., Mx., Mexico
UNAM, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ 3000, Mexico Cd Mx 04510, Mexico
Molina de Soschin, D.:
Departamento de Dermatología, Sección de Micología, Hospital General Dr. Manuel Gea González, México, Cd. Mx., Mexico
Hosp Gen Dr Manuel Gea Gonzalez, Dept Dermatol, Secc Micol, Mexico Cd Mx, Mexico
Acosta-Altamirano, G.:
Hospital Regional de Alta Especialidad Ixtapaluca, Carretera Federal México–Puebla Km, 34.5, Pueblo de Zoquiapan, Ixtapaluca, Mexico
Hosp Reg Alta Especialidad Ixtapaluca, Carretera Fed Mexico Puebla Km 34-5, Ixtapaluca 56530, Mexico
Reyes-Montes, M. R.:
Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria No. 3000, México Cd., Mx., Mexico
UNAM, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ 3000, Mexico Cd Mx 04510, Mexico
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