Ensieh Lotfali, Akram Miraminmohammadi, Mahshid Shahrzad, Ali Khamesipoor, Alireza Firooz, Azam Fattahi,
Volume 11, Issue 1 (Volume 11, No 1 2020)
Abstract
Background and Aim: The aim of the present study is rapid and precise identification of yeast species isolated from nail of patients with clinical features of onychomycosis using PCR-RFLP technique.
Methods: 50 patients with involvement of 29 fingernails and 21 toenails were enrolled in the study. Different yeast species were identified by conventional mycological. The PCR-RFLP was tested on yeast isolated and the PCR-RFLP products were separated by electrophoresis in 2% agarose gel, with DNA stain.
Results: The main causative agents were yeasts in 12 cases (24%). Candida albicans was the most commonly isolated yeast species followed by Candida parapsilosis (6%), and Candida glabrata (4 %).
Conclusion: PCR-RFLP method using ITS1-ITS4 primers and MspI restriction enzymes is a rapid, accurate and cost-effective method for specific diagnosis of the most prevalent candida spp. Its ability to detect low amounts of fungal DNA in patient samples in 6-8 hours could be useful for clinical laboratories for optimal management of these infections.
Afsarolmoluk Hadadian, Azin Ayatollahi, Akram Miraminmohammadi, Mahshid Shahrzadkavkani, Alireza Firooz, Ensieh Lotfali, Mahsa Fattahi,
Volume 12, Issue 3 (Volume 12, No 3 2021)
Abstract
Introduction: Dermatophytosis are micro-organisms which can lead to skin diseases. In rare occasions they can have atypical skin manifestations, which could result in delay in diagnosis.
Case Report: A 20-year-old Iranian boy was referred to our center with a 5-month history of circular, symmetrical, itchy crusted skin lesions on his groin. Direct microscopy, culture test and PCR-sequencing of ITS regions of the rDNA gene were conducted and showed T. indotinea as the causative agent. Based on antifungal susceptibility test oral pulse therapy with itraconazole 100 mg twice daily for 1 week combined with topical clotrimazole cream for 1 month was initiated, which cleared the lesions.
Conclusion: This case report is of significance since T. indotinea produces atypical skin lesions, as well as, multidrug resistance to antifungal agents.
