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Analysis of the genetic diversity of Candida isolates obtained from diabetic patients and kidney transplant recipients
Benedetti, Volmir Pitt; Savi, Daiani Cristina; Aluizio, Rodrigo; Adamoski, Douglas; Kava-Cordeiro, Vanessa; Galli-Terasawa, Lygia V; Glienke, Chirlei.
  • Benedetti, Volmir Pitt; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Savi, Daiani Cristina; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Aluizio, Rodrigo; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Adamoski, Douglas; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Kava-Cordeiro, Vanessa; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Galli-Terasawa, Lygia V; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
  • Glienke, Chirlei; Universidade Paranaense. Departamento de Microbiologia. Francisco Beltrão. BR
Mem. Inst. Oswaldo Cruz ; 111(7): 417-422, tab, graf
Article in English | LILACS | ID: lil-787553
Responsible library: BR1.1
ABSTRACT
Yeasts of the genus Candida have high genetic variability and are the most common opportunistic pathogenic fungi in humans. In this study, we evaluated the genetic diversity among 120 isolates of Candida spp. obtained from diabetic patients, kidney transplant recipients and patients without any immune deficiencies from Paraná state, Brazil. The analysis was performed using the ITS1-5.8S-ITS2 region and a partial sequence of 28S rDNA. In the phylogenetic analysis, we observed a consistent separation of the species C. albicans, C. dubliniensis, C. glabrata, C. tropicalis, C. parapsilosis, C. metapsilosis and C. orthopsilosis, however with low intraspecific variability. In the analysis of the C. albicans species, two clades were formed. Clade A included the largest number of isolates (91.2%) and the majority of isolates from GenBank (71.4%). The phylogenetic analysis showed low intraspecific genetic diversity, and the genetic polymorphisms between C. albicans isolates were similar to genetic divergence found in other studies performed with isolates from Brazil. This low genetic diversity of isolates can be explained by the geographic proximity of the patients evaluated. It was observed that yeast colonisation was highest in renal transplant recipients and diabetic patients and that C. albicans was the species most frequently isolated.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Genetic Variation / Candida / Kidney Transplantation / Diabetes Mellitus / Candidiasis, Invasive Limits: Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2016 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Paranaense/BR

Full text: Available Index: LILACS (Americas) Main subject: Genetic Variation / Candida / Kidney Transplantation / Diabetes Mellitus / Candidiasis, Invasive Limits: Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2016 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Paranaense/BR