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Trichosporon isolation from human ungueal infections: is there a pathogenic role?*

Overview of attention for article published in Anais Brasileiros de Dermatologia, January 2016
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Title
Trichosporon isolation from human ungueal infections: is there a pathogenic role?*
Published in
Anais Brasileiros de Dermatologia, January 2016
DOI 10.1590/abd1806-4841.20164632
Pubmed ID
Authors

Alba Regina de Magalhães, Marília Martins Nishikawa, Silvia Suzana Bona de Mondino, Heloisa Werneck de Macedo, Elisabeth da Silva da Martins Rocha, Andrea Regina de Souza Baptista

Abstract

Although dermatophytes are considered the major cause of onychomycosis, many reports have incriminated non-dermatophyte moulds and yeasts in the disease's etiology. Successive Trichosporon isolation from onychomycosis has led to the genus being suspected as a nail primary pathogen. To determine the prevalence of Trichosporon isolation in onychomycosis patients who attended a mycology diagnostic service in Rio de Janeiro, Brazil, between January 2003 and December 2006. The study also includes a worldwide review on Trichosporon isolation prevalence in ungueal disease, emphasizing T. ovoides. This retrospective study was conducted with the support of staff from the Mycology Laboratory at the Dermatological Service of Rio de Janeiro's Santa Casa da Misericórdia (MLDS). Mycological analysis provided positive results equaling 47/5036 (0.93%) for Trichosporon spp.; obtained mainly as a single agent (72.35%), and from mixed cultures (27.65%; X2= 6.397; p= 0.018). The great majority belongs to the T. ovoides species (91.5%; n=43), obtained as a single isolate (74.41%; n= 32/43; X2 = 7.023; p= 0.014). Although T. ovoides is classically associated as an etiologic agent of white piedra, this study highlights its potential as a human nail disease pathogen. Our study opens doors for future epidemiologic and virulence factors aimed at determining whether T. ovoides is an important causative agent of onychomycosis in Brazil.

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The data shown below were compiled from readership statistics for 27 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 27 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 4 15%
Student > Ph. D. Student 3 11%
Student > Bachelor 2 7%
Researcher 2 7%
Student > Doctoral Student 1 4%
Other 4 15%
Unknown 11 41%
Readers by discipline Count As %
Immunology and Microbiology 5 19%
Pharmacology, Toxicology and Pharmaceutical Science 4 15%
Medicine and Dentistry 3 11%
Agricultural and Biological Sciences 2 7%
Unknown 13 48%