International Journal of Research in Medical Sciences | December 2017 | Vol 5 | Issue 12 Page 5117
International Journal of Research in Medical Sciences
Erbaş G et al. Int J Res Med Sci. 2017 Dec;5(12):5117-5120
www.msjonline.org pISSN 2320-6071 | eISSN 2320-6012
Original Research Article
Antifungal susceptibilities and identification of Candida species by using
maldi-tof microbial identification system from cervicovaginal samples
Göksel Erbaş*, Uğur Parin, Şükrü Kirkan, Süheyla Türkyilmaz, Serap Savaşan,
Hafize Tuğba Yüksel, Sinem Öztürk
INTRODUCTION
Candida is a normal commensal organism in the vagina
and cause vaginal yeast infection. The most common
name of vaginal fungal infections is Vaginal Candidiasis
(VC). Vaginal candidiasis is a common fungal infection
that affects healthy women of all ages. There are many
types of fungi that cause vaginal yeast infections. Among
these fungi, the most common is Candida albicans, but
there is increased awareness of the role of yeasts other
than C. albicans such as Candida glabrata, Candida
tropicalis, Candida krusei and Candida parapsilosis.
1
In
recent studies, non-albicans Candida (NAC) species such
as C. tropicalis, C. glabrata and C. krusei and C.
parapsilosis have been frequently isolated.
2
This data,
especially caused by non-albicans species in VC
infections, may be due to many factors such as the use of
over-the-counter antifungal, increase of high-risk patient
populations and geographical differences.
The responses of Candida species to antifungals vary.
Therefore, determining the species distribution of
Candida spp. is of great importance in the selection of
antifungals. There are several ways to identify Candida
species. Among these ways Rapid identification systems
have been used in recent years. Identification of yeast
Department of Microbiology, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydın, Turkey
Received: 22 September 2017
Accepted: 31 October 2017
*Correspondence:
Dr. Göksel ERBAŞ,
E-mail: gerbas@adu.edu.tr
Copyright: © the author(s), publisher and licensee Medip Academy. This is an open-access article distributed under
the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial
use, distribution, and reproduction in any medium, provided the original work is properly cited.
ABSTRACT
Background: Among the vaginal diseases seen in women, candidiasis is in the first place. This disease, which is
caused by Candida species, can sometimes persist very stubbornly. The aim of this study was to determine Candida
species isolated from vaginal specimens by using VITEK MS (MALDI-TOF Microbial Identification System) rapid
identification system and to evaluate their susceptibility to some antifungals.
Methods: In this study, 220 cervicovaginal swab were used. Isolates were identified by VITEK MS rapid
identification system. After identification, antifungal susceptibility testing was performed using the M-44 A2
guideline of The Clinical and Laboratory Standards Institute (CLSI).
Results: Total 16.3% (36) of Candida spp. positivity was determined from 220 cervicovaginal samples, and 25
(69.4%) C. glabrata, 6 (16.7%) C. albicans, 3 (8.3%) C. kefyr and 2 (5.6%) C. krusei were obtained with Vitek MS.
All identified C. albicans strains were found to be completely resistant to all antifungals used except nystatin agent,
C. krusei strains were found to be resistant to flucytosine but sensitive to all other antifungals, C. glabrata and C.
kefyr strains were susceptible to all antifungals within the antifungals used in this study.
Conclusions: It is concluded that it is necessary to distinguish Candida species in order to apply a correct treatment.
And species selection is very important for the selection of antifungal to be used. Nystatin is recommended if no
laboratory tests are to be performed for the diagnosis of Vaginal Candidiasis.
Keywords: Antifungal, Candida, Vaginal Candidiasis, Vitek MS
DOI: http://dx.doi.org/10.18203/2320-6012.ijrms20175429