Genotyping of Candida albicans Strains Obtained from Oropharyngeal Candidiasis Patients Based on ABC and RPS Typing Systems
| Autor: | Jamshid Mohammadi, Mojtaba Didehdar, Farzad Katiraee, Zohreh Alibabaei, Saeid Amanloo, Zahra Jahanshiri |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Microbiology (medical) 030106 microbiology UPGMA Biology biology.organism_classification Microbiology Oropharyngeal Candidiasis Corpus albicans 03 medical and health sciences 0302 clinical medicine Infectious Diseases Genotype 030212 general & internal medicine Typing Candida albicans Ribosomal DNA Genotyping |
| Zdroj: | Jundishapur Journal of Microbiology. 13 |
| ISSN: | 2008-4161 2008-3645 |
| DOI: | 10.5812/jjm.103592 |
| Popis: | Background: Candida albicanss has been introduced as one of the most common causes of nosocomial infections. Molecular typing methods are powerful tools in epidemiology to investigate the infection source of candidiasis, identify the transmission routes, and control the measures. Objectives: This study aimed for genotyping C. albicans species isolated from oral cavities of the non-HIV patients who suffer from oropharyngeal candidiasis via combined ABC and repeat sequences (RPS) typing systems. Methods: In this study, 31 DNA samples of clinical isolates of C. albicans were evaluated in terms of 25s ribosomal DNA region sequence or ABC typing, and ALT repeats numbers within RPS. DNA was amplified in two separate reactions, and the PCR products were electrophoresed to identify the genotypes of the isolates. Based on the band's pattern, phylogenetic analysis was conducted by UPGMA, and the discriminatory power of ABC and RPS typing was measured by Simpson’s index of diversity. Results: Genotype A with (14 isolates, 45.2%) were the most frequent and followed by genotype B (10 isolates, 32.3%) and Genotype C (7 isolates, 22.6%), respectively. In addition, genotype 3 with 25 isolates (80.6%) were the most prevalent, followed by genotype 2/3 (4 isolates, 12.9%) and genotype 3/4 (2 isolates, 6.5%) respectively. No significant relationship was found between the obtained genotypes and drug-resistant isolates (P < 0.05). Conclusions: This study showed that 25s rDNA and RPS typing is a quick, simple, and cost-effective method with average discriminatory power and good reproducibility for C. albicans genotyping. It can be used for the epidemiology of C. albicans infections. |
| Databáze: | OpenAIRE |
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