Identification of Candida species isolated from vulvovaginitis in Mashhad, Iran by Use of MALDI-TOF MS

Authors

1 Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

2 Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands

3 Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands

4 Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

5 Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

6 Department of Medical Mycology, School of Medicine, Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

7 Department of Parasitology and Mycology, Research Center for Cutaneous Leishmaniasis, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

8 Faculty of Engineering, Sabzevar University of New Technologies, Sabzevar, Iran

9 Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

Background and Purpose
Vulvovaginal candidiasis (VVC) is a common problem in women. The purpose of this study was to identify of Candida species isolated from vulvovaginitis woman suffering vulvovaginitis refered to Ghaem Hospital, Mashhad, Iran, by use of MALDI-TOF mass spectrometry.

 Materials and Methods

The 65 clinical samples isolated from Vulvovaginitis women were collected in Ghaem Hospital. All specimens were identified using phenotypic techniques such as microscopy and culture on Sabouraud dextrose agar and corn meal agar medium,Then, All isolates were detected and were processed for MALDI TOF MS identification.

Results
 Of the 65 isolates analyzed, 61 (93.8%) were recognised by MALDI-TOF mass spectrometry and for four isolates (6.1%) only not relabile identifications were achieved. In this study, the most frequently isolated species were Candida albicans (58.5%), followed by Candida tropicalis (16.9%), Candida glabrata (7.7%), Candida parapsilosis (7.7%) and Candida guillermondii (3.1%).

 Conclusion

presented results demonstrate that the MALDI TOF mass spectrometry is a fast and reliable technique, and has the potential to replace conventional phenotypic identification of Candida species and other yeast strains routinely isolated in clinical microbiology laboratories.

Keywords