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392120

Vitek 2 system for identification and susceptibility testing of Candida species with detection of fluconazole resistant genes

Article

Last updated: 24 Dec 2024

Subjects

-

Tags

Microbiology

Abstract

Background: Candida species (Candida spp) has been increasingly emerging nosocomial pathogens with increasing treatment failure, so it is important to isolate, identify the species and check the sensitivity pattern. Fluconazole resistance is linked to multiple molecular pathways demonstrated by Candida spp. Objective: To determine the frequency of Candida spp. isolated from a variety of clinical samples, antifungal susceptibility patterns and detection of fluconazole-resistant genes expression pattern. Methodology: A cross-sectional study was performed on 300 various clinical samples in a hospital setting from patients attending Outpatient and Inpatient departments of Tanta University hospitals. Several candida spp. was identified at species level by using conventional tests, and VITEK 2 compact system. Antifungal susceptibility testing was carried out using VITEK 2 compact automated system and disk diffusion method followed by detection of gene expression pattern for ERG11, and efflux pumps by Real-time- PCR in candida species resistant to fluconazole. Results: From 300 clinical samples, 51 different species of candida were identified. Non albicans candida (NAC) were more   prevalent (56.9%) than C. albicans (43.1%). Overall, the isolated candida species 20 (39.2%) were resistant to fluconazole. Regarding to gene expression pattern Ergosterol (ERG11), Candida drug resistance (CDR1, CDR2), Pleiotropic drug resistance (PDR1) in C. glabrata, there was a statistically significant difference in the ERG11, CDR1 expression levels only in resistant isolates compared to sensitive isolates. while analysis of gene expression of C. auris efflux pump (CDR1, CDR2), Multidrug resistance (MDR1) and ERG11, revealed statistically significant differences in all tested genes. Conclusion: There was increase in the frequency of non albicans Candida (NAC) and emergence of fluconazole resistant species; C. auris emerged during pandemic of COVID-19 and they significantly exhibit expression levels higher than C. glabrata.

DOI

10.21608/jram.2024.307952.1259

Keywords

Vitek 2 system, non albicans Candida, Fluconazole resistance, RT-PCR, Candida auris

Authors

First Name

Manal

Last Name

Ismail

MiddleName

G.

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine for Girls, Cairo, Al-Azhar University, Egypt.

Email

manalismail29@gmail.com

City

-

Orcid

-

First Name

Jaylan

Last Name

Ali

MiddleName

A.

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine for Girls, Cairo, Al-Azhar University, Egypt.

Email

jaylanayoub73@gmail.com

City

Cairo

Orcid

-

First Name

Naglaa

Last Name

Abd El Haliem

MiddleName

F.

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine for Girls, Cairo, Al-Azhar University, Egypt.

Email

naglaafarouk97@gmail.com

City

cairo

Orcid

-

First Name

Amany

Last Name

Abdel Wahab

MiddleName

M.

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine for Girls, Cairo, Al-Azhar University, Egypt.

Email

amanimohamed1960@yaho.com

City

Cairo

Orcid

-

First Name

Niveen

Last Name

Ghoraba

MiddleName

M.

Affiliation

Clinical Pathology Department, Faculty of Medicine for Girds, Cairo, Al-Azhar University, Egypt.

Email

niveen@azhar.edu.eg

City

Tanta

Orcid

-

Volume

5

Article Issue

2

Related Issue

51601

Issue Date

2024-07-01

Receive Date

2024-08-09

Publish Date

2024-07-01

Page Start

157

Page End

165

Print ISSN

2636-252X

Online ISSN

2636-2538

Link

https://jram.journals.ekb.eg/article_392120.html

Detail API

https://jram.journals.ekb.eg/service?article_code=392120

Order

392,120

Type

Review Article

Type Code

717

Publication Type

Journal

Publication Title

Journal of Recent Advances in Medicine

Publication Link

https://jram.journals.ekb.eg/

MainTitle

Vitek 2 system for identification and susceptibility testing of Candida species with detection of fluconazole resistant genes

Details

Type

Article

Created At

24 Dec 2024