COMPARISON OF CHROMAGAR, POLYMERASE CHAIN REACTIONRESTRICTION FRAGMENT LENGTH POLYMORPHISM, AND POLYMERASE CHAIN REACTION-FRAGMENT SIZE FOR THE IDENTIFICATION OF CANDIDA SPECIES

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JAFARI ZAHRA; Motamedi Marjan; JALALIZAND NILOUFAR; SHOKOHI GHOLAMREZA; CHARSIZADEH AREZOO; MIRHENDI HOSSEIN

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Journal: Current Medical Mycology Year:2017 | Volume:3 | Issue:3 Page(s): 10-15

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Title

COMPARISON OF CHROMAGAR, POLYMERASE CHAIN REACTIONRESTRICTION FRAGMENT LENGTH POLYMORPHISM, AND POLYMERASE CHAIN REACTION-FRAGMENT SIZE FOR THE IDENTIFICATION OF CANDIDA SPECIES

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Keywords

CANDIDA SPECIES

IDENTIFICATION

PCR-FRAGMENT SIZE POLYMORPHISM

PCR-RESTRICTION FRAGMENT LENGTH POLYMORPHISM

Abstract

Background and Purpose: The epidemiological alteration in the distribution of CANDIDA SPECIES, as well as the significantly increasing trend of either intrinsic or acquired resistance of some of these fungi highlights the need for a reliable method for the IDENTIFICATION of the species. Polymerase chain reaction (PCR) is one of the methods facilitating the quick and precise IDENTIFICATION of CANDIDA SPECIES. The aim of this study was to compare the efficiency of CHROMagar, PCR-RESTRICTION FRAGMENT LENGTH POLYMORPHISM (PCR-RFLP), and PCR-FRAGMENT SIZE POLYMORPHISM (PCR-FSP) assays in the IDENTIFICATION of CANDIDA SPECIES to determine the benefits and limitations of these methods.Materials and Methods: This study was conducted on 107 Candida strains, including 20 standard strains and 87 clinical isolates. The IDENTIFICATION of the isolates was accomplished by using CHROMagar as a conventional method. The PCR-RFLP assay was performed on the entire internal transcribed spacer (ITS) region of ribosomal DNA (rDNA), and the consequent enzymatic digestion was compared with PCR-FSP results in which ITS1 and ITS2 regions were separately PCR amplified. In both molecular assays, yeast IDENTIFICATION was carried out through the specific electrophoretic profiles of the PCR products.Results: According to the results, the utilization of CHROMagar resulted in the identi-fication of 29 (33.3%) Candida isolates, while the PCR-RFLP and PCR-FSP facilitated the IDENTIFICATION of 83 (95.4%) and 80 (91.9%) clinical isolates, respectively. The obtained concordances between CHROMagar and PCR-RFLP, between CHROMagar and PCR-FSP, as well as between PCR-RFLP and PCR-FSP were 0.23, 0.20, and 0.77, respectively.Conclusion: The recognition of the benefits and limitations of PCR methods allows for the selection of the most efficient technique for a fast and correct differentiation. The PCR-RFLP and PCR-FSP assays had satisfactory concordance. The PCR-FSP provides a rapid, technically simple, and cost-effective method for the IDENTIFICATION of CANDIDA SPECIES. Nevertheless, to accurately differentiate among the taxonomically related species, PCR-RFLP should be implemented.

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APA: Copy

JAFARI, ZAHRA, Motamedi, Marjan, JALALIZAND, NILOUFAR, SHOKOHI, GHOLAMREZA, CHARSIZADEH, AREZOO, & MIRHENDI, HOSSEIN. (2017). COMPARISON OF CHROMAGAR, POLYMERASE CHAIN REACTIONRESTRICTION FRAGMENT LENGTH POLYMORPHISM, AND POLYMERASE CHAIN REACTION-FRAGMENT SIZE FOR THE IDENTIFICATION OF CANDIDA SPECIES. CURRENT MEDICAL MYCOLOGY, 3(3), 10-15. SID. https://sid.ir/paper/350898/en

Vancouver: Copy

JAFARI ZAHRA, Motamedi Marjan, JALALIZAND NILOUFAR, SHOKOHI GHOLAMREZA, CHARSIZADEH AREZOO, MIRHENDI HOSSEIN. COMPARISON OF CHROMAGAR, POLYMERASE CHAIN REACTIONRESTRICTION FRAGMENT LENGTH POLYMORPHISM, AND POLYMERASE CHAIN REACTION-FRAGMENT SIZE FOR THE IDENTIFICATION OF CANDIDA SPECIES. CURRENT MEDICAL MYCOLOGY[Internet]. 2017;3(3):10-15. Available from: https://sid.ir/paper/350898/en

IEEE: Copy

ZAHRA JAFARI, Marjan Motamedi, NILOUFAR JALALIZAND, GHOLAMREZA SHOKOHI, AREZOO CHARSIZADEH, and HOSSEIN MIRHENDI, “COMPARISON OF CHROMAGAR, POLYMERASE CHAIN REACTIONRESTRICTION FRAGMENT LENGTH POLYMORPHISM, AND POLYMERASE CHAIN REACTION-FRAGMENT SIZE FOR THE IDENTIFICATION OF CANDIDA SPECIES,” CURRENT MEDICAL MYCOLOGY, vol. 3, no. 3, pp. 10–15, 2017, [Online]. Available: https://sid.ir/paper/350898/en

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