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Speciation of Candida using CHROMagar in cases with oral epithelial dysplasia and squamous cell carcinoma.
Background: Candida albicans is most frequently isolated from oral cavity but identification of other Candida species such as C. tropicalis, C. krusei, C. glabrata & C. dubliniensis is increasing proportionately. A constant rise in immuno-suppressed patients, widening range of recognized pathogens, and resistance to antifungal drugs are contributing factors which stress the need for species identification of Candida , an opportunistic pathogen. Objectives: 1. To detect the prevalence of Candida albicans and Non albicans Candida albicans (NAC) species in the oral cavity of patients with epithelial dysplasia, Oral squamous cell carcinoma (OSCC) and healthy controls. 2. To identify and differentiate Candidal species using CHROMagar, a differential media.
Material and Methods: The study included smears from 50 patients with histopathological confirmation of epithelial dysplasia & OSCC and 50 normal controls. Candida albicans was identified using Sabouraud dextrose agar media (SDA) as primary culture followed by species identification using CHROMagar on the basis of colony color and morphology.
Results: Non albicans candida predominated (66%) over Candida albicans (34%) in speciation on CHROMagar media in the study group. Non albicans Candida species isolated were C. tropicalis (38%), C. glabrata (24%) and 2 cases showing polyfungal population of C. albicans & C. glabrata .
Conclusions: Species level isolation of Candida helps in early identification of resistant non Candida strains and prompt treatment of the cases there by preventing the dissemination of infection in case of immuno-compromised individuals. The data presented also supports the use of CHROMagar Candida as a pertinent media for the rapid identification of Candida species directly from clinical specimens in resource challenged settings, which could be helpful in developing appropriate therapeutic strategy and management of patients. Key words: Candida, CHROMagar, epithelial dysplasia, oral cancer.
Material and Methods: The study included smears from 50 patients with histopathological confirmation of epithelial dysplasia & OSCC and 50 normal controls. Candida albicans was identified using Sabouraud dextrose agar media (SDA) as primary culture followed by species identification using CHROMagar on the basis of colony color and morphology.
Results: Non albicans candida predominated (66%) over Candida albicans (34%) in speciation on CHROMagar media in the study group. Non albicans Candida species isolated were C. tropicalis (38%), C. glabrata (24%) and 2 cases showing polyfungal population of C. albicans & C. glabrata .
Conclusions: Species level isolation of Candida helps in early identification of resistant non Candida strains and prompt treatment of the cases there by preventing the dissemination of infection in case of immuno-compromised individuals. The data presented also supports the use of CHROMagar Candida as a pertinent media for the rapid identification of Candida species directly from clinical specimens in resource challenged settings, which could be helpful in developing appropriate therapeutic strategy and management of patients. Key words: Candida, CHROMagar, epithelial dysplasia, oral cancer.
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