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Comparison of MALDI-TOF mass spectrometry and rpoB gene sequencing for the identification of clinical isolates of Aeromonas spp.
Kitagawa, Daisuke; Suzuki, Yuki; Abe, Noriyuki; Ui, Koji; Suzuki, Keitaro; Yamashita, Takaya; Sakaguchi, Atsuko; Suzuki, Soma; Masuo, Kazue; Nakano, Akiyo; Nakano, Ryuichi; Sato, Masatoshi; Maeda, Koichi; Nakamura, Fumihiko; Yano, Hisakazu.
Afiliación
  • Kitagawa D; Department of Microbiology and Infectious Diseases, Nara Medical University, Japan.
  • Suzuki Y; Department of Laboratory Medicine, Nara Prefecture General Medical Center, Japan.
  • Abe N; Department of Microbiology and Infectious Diseases, Nara Medical University, Japan.
  • Ui K; Department of Laboratory Medicine, Tenri Hospital, Japan.
  • Suzuki K; Department of Central Laboratory Medicine, Nara Medical University Hospital, Japan.
  • Yamashita T; Department of Laboratory, The Yamatotakada Municipal Hospital, Japan.
  • Sakaguchi A; Department of Laboratory Medicine, Nara City Hospital, Japan.
  • Suzuki S; Department of Clinical Laboratory, Nara City General Medical Inspection Center, Japan.
  • Masuo K; Department of Laboratory Medicine, Nara Prefecture General Medical Center, Japan.
  • Nakano A; Department of Laboratory Medicine, Nara Prefecture General Medical Center, Japan.
  • Nakano R; Department of Microbiology and Infectious Diseases, Nara Medical University, Japan.
  • Sato M; Department of Microbiology and Infectious Diseases, Nara Medical University, Japan.
  • Maeda K; Department of Infectious Diseases, Nara Prefecture General Medical Center, Japan.
  • Nakamura F; Department of Infectious Diseases, Nara Prefecture General Medical Center, Japan.
  • Yano H; Department of Laboratory Medicine, Nara Prefecture General Medical Center, Japan.
Heliyon ; 8(11): e11585, 2022 Nov.
Article en En | MEDLINE | ID: mdl-36406716
Aeromonas spp., widely present in rivers and soil, cause mild gastroenteritis, severe septicemia, and soft tissue infections in humans. Treatment of these infections require accurate identification of pathogenic Aeromonas spp. However, identification at the species level using conventional methods is highly challenging. In this study, we aimed to compare the accuracy of two different approaches developed for bacterial identification: (i) housekeeping gene sequencing (rpoB) in conjunction with phylogenetic analysis and (ii) matrix-assisted laser desorption ionization mass spectrometry-time of flight (MALDI-TOF MS) (MALDI Biotyper and VITEK MS), for differentiating Aeromonas spp. We analyzed 58 Aeromonas isolates recovered from patients at different medical institutions in Japan using both identification methods. The rpoB sequencing method was the most accurate, identifying all Aeromonas isolates at the species level. Meanwhile, the MALDI Biotyper system correctly identified 53 (91.4%) isolates at the genus level and an additional 30 (51.7%) at the species level. The VITEK MS system correctly identified 58 (100%) isolates at the genus level and an additional 34 (58.6%) at the species level. Thus, MALDI Biotyper and VITEK MS accurately identified isolates at the genus level, but differences were found in the accuracy of identification of species. However, the low cost and ease of analysis make MALDI-TOF MS-based methods strong candidates for use in clinical laboratories that require easy-to-use identification methods.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Heliyon Año: 2022 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Heliyon Año: 2022 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido