Molecular Identification of Candida Species in Clinical Isolates

Candida exists as a normal flora on skin and mucosa. The prevalence of Candida-induced infections specially mucosal and vaginal infections have been raised in the world in last decade due to increase in predisposing factors. C.albicans is the major etiological agent of candidiasis, but infections due to other species have been increasing. The aim of this study was to determine Candida species by using polymerase chain reaction (PCR) in patient with oral and vulvovaginal candidiasis that referred to clinics of Babol University of Medical Sciences, Babol, Iran. Sixty clinical samples were collected from mouth (no= 29) and vagina (no= 31). Identification of Candida species was done by using a combination of conventional and PCR methods. Germ tube and vesicle (chlamidoconidia) were seen in 43(71.67%) and 42(75%) of Candida isolates, respectively. Assimilation of sugars and Gel electrophoresis of PCR products showed that 78.34%  and 75% of isolates were C.albicans, respectively, followed by C.parapsilosis, C.guilliermondii, C.tropicalis and C.glabrata.According to our results, C.albicans was the major causative agent in mouth, and also in vulvovaginal candidiasis. We concluded that Candida spp. is prevalent in mouth and vagina, indicating the necessity for preventing candidiasis by using some antifungal drugs.

[1]  Chia-Jung Lu,et al.  Development of a Novel , 2011 .

[2]  H. Boyacıoğlu,et al.  Molecular typing of Candida albicans strains isolated from denture wearers by repetitive sequence-based PCR , 2011, European Journal of Clinical Microbiology & Infectious Diseases.

[3]  M. Soni,et al.  ORAL CANDIDIASIS: A REVIEW , 2010 .

[4]  T. Sorrell,et al.  Comparison of Whole Blood, Serum, and Plasma for Early Detection of Candidemia by Multiplex-Tandem PCR , 2009, Journal of Clinical Microbiology.

[5]  N. Wengenack,et al.  Fungal molecular diagnostics. , 2009, Clinics in chest medicine.

[6]  R. Hay,et al.  Improving molecular detection of Candida DNA in whole blood: comparison of seven fungal DNA extraction protocols using real-time PCR. , 2008, Journal of medical microbiology.

[7]  D. Moslemi,et al.  Molecular Identification of Candida Albicans Isolated From the Oncology Patients at Four University Hospitals in Mazandaran Province (2005-6) , 2007 .

[8]  T. Lion,et al.  The Pan-AC assay: a single-reaction real-time PCR test for quantitative detection of a broad range of Aspergillus and Candida species. , 2007, Journal of medical microbiology.

[9]  M. Mahmoodi,et al.  Prospective screening in liver transplant recipients by panfungal PCR‐ELISA for early diagnosis of invasive fungal infections , 2007, Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society.

[10]  S. Jalal,et al.  Molecular detection and identification of Candida and Aspergillus spp. from clinical samples using real-time PCR. , 2006, Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases.

[11]  Bonifaz Alexandro,et al.  Rapid production of Candida albicans chlamydospores in liquid media under various incubation conditions. , 2006, Nihon Ishinkin Gakkai zasshi = Japanese journal of medical mycology.

[12]  A. Paugam,et al.  Clinical and experimental evaluation of a new chromogenic medium (OCCA®, Oxoid) for direct identification of Candida albicans, C. tropicalis and C. krusei , 2006, Mycoses.

[13]  H. Yamaguchi,et al.  A one-enzyme PCR-RFLP assay for identification of six medically important Candida species. , 2006, Nihon Ishinkin Gakkai zasshi = Japanese journal of medical mycology.

[14]  S. Bretagne,et al.  Towards a molecular diagnosis of invasive aspergillosis and disseminated candidosis. , 2005, FEMS immunology and medical microbiology.

[15]  S. Wongkham,et al.  In vitro inhibitory effect of Streblus asper leaf-extract on adhesion of Candida albicans to human buccal epithelial cells. , 2005, Journal of ethnopharmacology.

[16]  A. Elkarmi,et al.  Isolation and characterization of Candida spp. in Jordanian cancer patients: prevalence, pathogenic determinants, and antifungal sensitivity. , 2004, Japanese journal of infectious diseases.

[17]  Naima Ahariz,et al.  Comparison of Different Methods of Isolation of DNA of Commonly Encountered Candida Species and Its Quantitation by Using a Real-Time PCR-Based Assay , 2004, Journal of Clinical Microbiology.

[18]  A. Limaye,et al.  Rapid Identification of Commonly Encountered Candida Species Directly from Blood Culture Bottles , 2003, Journal of Clinical Microbiology.

[19]  M. Aoun,et al.  Rapid Detection of Candida albicans in Clinical Blood Samples by Using a TaqMan-Based PCR Assay , 2003, Journal of Clinical Microbiology.

[20]  Suzana Tasi,et al.  RECURRENT GENITAL CANDIDOSIS OF WOMEN : CONSEQUENCE OF REINFECTION OR RELAPSE , 2003 .

[21]  R. Morgan,et al.  Oral candidiasis , 2002, Postgraduate medical journal.

[22]  Suhail Ahmad,et al.  Seminested PCR for Diagnosis of Candidemia: Comparison with Culture, Antigen Detection, and Biochemical Methods for Species Identification , 2002, Journal of Clinical Microbiology.

[23]  R. Sentandreu,et al.  Identification of Candida albicans by polymerase chain reaction amplification of CaYST1 gene intron fragment. , 2002, Revista iberoamericana de micologia.

[24]  Lim Young-Hee Rapid PCR Method for Detecting Candida albicans Using Primers Derived from the Integrin-like Protein Gene αINT1 of Candida albicans , 2000 .

[25]  P. Schnitzler,et al.  Simple and Rapid Detection of Candida albicans DNA in Serum by PCR for Diagnosis of Invasive Candidiasis , 2000, Journal of Clinical Microbiology.

[26]  A. Limaye,et al.  Identification of Medically Important Yeasts Using PCR-Based Detection of DNA Sequence Polymorphisms in the Internal Transcribed Spacer 2 Region of the rRNA Genes , 2000, Journal of Clinical Microbiology.

[27]  H. Goossens,et al.  Genetic identification of Candida species in HIV-positive patients using the polymerase chain reaction and restriction fragment length polymorphism analysis of its DNA. , 1999, Molecular and cellular probes.

[28]  J. Pontón,et al.  Correlation between germ tube production, phospholipase activity and serotype distribution in Candida albicans. , 1999, Revista iberoamericana de micologia.

[29]  T. Lott,et al.  Rapid Identification of Candida Species with Species-Specific DNA Probes , 1998, Journal of Clinical Microbiology.

[30]  S. Nakamoto Germ Tube Formation of Candida albicans in Corn Meal Broth Using the Non-Slip Slide Glass Incubation Method , 1998 .

[31]  G. Vardar-Ünlü A Comparison of Germ Tube Production by Candida albicans in Three Media , 1998 .

[32]  F. Nolte,et al.  Rapid identification of Candida species in blood cultures by a clinically useful PCR method , 1997, Journal of clinical microbiology.

[33]  H. Einsele,et al.  Detection and identification of fungal pathogens in blood by using molecular probes , 1997, Journal of clinical microbiology.

[34]  A. van Belkum,et al.  Improved detection of Candida albicans by PCR in blood of neutropenic mice with systemic candidiasis , 1995, Journal of clinical microbiology.

[35]  R. Syverson Variable assimilation of carbon compounds by Candida albicans , 1981, Journal of clinical microbiology.