Trichosporon isolation from human ungueal infections: is there a pathogenic role?
An. bras. dermatol
;
91(2): 173-179, Mar.-Apr. 2016. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-781362
ABSTRACT
Abstract BACKGROUND:
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.OBJECTIVE:
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.METHODS:
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).RESULTS:
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).CONCLUSIONS:
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.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Trichosporon
/
Onicomicose
Tipo de estudo:
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
Limite:
Idoso
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
An. bras. dermatol
Assunto da revista:
Dermatologia
Ano de publicação:
2016
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal Fluminense/BR
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