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FREQUENCY OF Candida SPECIES IN A TERTIARY CARE HOSPITAL IN TRIANGULO MINEIRO, MINAS GERAIS STATE, BRAZIL / Frequência de espécies de Candida em hospital terciário do Triângulo Mineiro, Minas Gerais, Brasil
MENEZES, Ralciane de Paula; FERREIRA, Joseane Cristina; SÁ, Walkiria Machado de; MOREIRA, Tomaz de Aquino; MALVINO, Lucivânia Duarte Silva; ARAUJO, Lucio Borges de; RÖDER, Denise Von Dolinger de Brito; PENATTI, Mario Paulo Amante; CANDIDO, Regina Celia; PEDROSO, Reginaldo dos Santos.
  • MENEZES, Ralciane de Paula; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • FERREIRA, Joseane Cristina; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • SÁ, Walkiria Machado de; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • MOREIRA, Tomaz de Aquino; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • MALVINO, Lucivânia Duarte Silva; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • ARAUJO, Lucio Borges de; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • RÖDER, Denise Von Dolinger de Brito; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • PENATTI, Mario Paulo Amante; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • CANDIDO, Regina Celia; Federal University of Uberlândia. FAMED. Uberlândia. BR
  • PEDROSO, Reginaldo dos Santos; Federal University of Uberlândia. FAMED. Uberlândia. BR
Rev. Inst. Med. Trop. Säo Paulo ; 57(3): 185-191, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-752603
ABSTRACT
Infections by Candida species are a high-impact problem in public health due to their wide incidence in hospitalized patients. The goal of this study was to evaluate frequency, susceptibility to antifungals, and genetic polymorphism of Candida species isolated from clinical specimens of hospitalized patients. The Candida isolates included in this study were obtained from blood cultures, abdominal fluids, and central venous catheters (CVC) of hospitalized patients at the Clinical Hospital of the Federal University of Uberlândia during the period of July 2010 - June 2011. Susceptibility tests were conducted by the broth microdilution method. The RAPD-PCR tests used employed initiator oligonucleotides OPA09, OPB11, and OPE06. Of the 63 Candida isolates, 18 (28.5%) were C. albicans, 20 (31.7%) were C. parapsilosis complex species, 14 (22.2%) C. tropicalis, four (6.4%) C. glabrata, four (6.4%) C. krusei, two (3.3%) C. kefyr, and one (1.6%) C. lusitaniae. In vitro resistance to amphotericin B was observed in 12.7% of isolates. In vitro resistance to azoles was not detected, except for C. krusei. The two primers, OPA09 and OPB11, were able to distinguish different species. Isolates of C. albicans and C. parapsilosis complex species presented six and five clusters, respectively, with the OPA09 marker by RAPD-PCR, showing the genetic variability of the isolates of those species. It was concluded that members of the C. parapsilosis complex were the most frequent species found, and most isolates were susceptible to the antifungals amphotericin B, flucozanole, and itraconazole. High genetic polymorphisms were observed for isolates of C. albicans and C. parapsilosis complex species, mainly with the OPA09 marker.
RESUMO
As infecções causadas por espécies de Candida são problema de grande impacto para a saúde pública, devido à alta incidência em pacientes hospitalizados e como causa de mortalidade. O presente estudo teve como objetivo avaliar a frequência de Candida spp. isoladas de pacientes hospitalizados, assim como a sensibilidade aos antifúngicos e o polimorfismo genético por RAPD-PCR. Os microrganismos incluíram isolados de hemocultura, líquido abdominal e ponta de cateter venoso central de pacientes internados no Hospital de Clínicas da Universidade Federal de Uberlândia, região do Triângulo Mineiro, Minas Gerais, Brasil, no período de julho de 2010-junho de 2011. Os testes de sensibilidade aos antifúngicos foram realizados por microdiluição em caldo e na análise por RAPD-PCR foram utilizados os oligonucleotídeos OPA09, OPB11, e OPE06. Dos 63 isolados, 18 (28,5%) foram C. albicans, 20 (31,7%) C. parapsilosis, 14 (22,2%) C. tropicalis, quatro (6,4%) C. glabrata, quatro (6,4%) C. krusei, dois (3,3%) C. kefyr, e um (1,6%) C. lusitaniae. Resistência in-vitro à anfotericina B foi observada em 12,7% dos isolados. Não foi observada resistência in-vitro aos azólicos, exceto para os isolados de C. krusei. Os oligonucleotídeos OPA09 e OPB11 possibilitaram distinguir diferentes espécies. Isolados de C. albicans apresentaram seis clusters e o complexo C. parapsilosis, cinco clusters, com o iniciador OPA09, por RAPD-PCR, mostrando a variabilidade genética daquelas espécies. Conclui-se que o complexo C. parapsilosis foi a espécie mais frequente, e a maioria dos isolados foi sensível in vitro aos antifúngicos testados. Alto polimorfismo genético foi observado para os isolados de C. albicans e complexo C. parapsilosis, principalmente com o oligonucleotídeo OPA09.
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Full text: Available Index: LILACS (Americas) Main subject: Candida / DNA, Fungal / Antifungal Agents Type of study: Screening study Limits: Aged / Aged80 / Female / Humans / Infant / Male / Infant, Newborn Country/Region as subject: South America / Brazil Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2015 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Federal University of Uberlândia/BR

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Full text: Available Index: LILACS (Americas) Main subject: Candida / DNA, Fungal / Antifungal Agents Type of study: Screening study Limits: Aged / Aged80 / Female / Humans / Infant / Male / Infant, Newborn Country/Region as subject: South America / Brazil Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2015 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Federal University of Uberlândia/BR