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282760

Candidiasis in Immunnocompromised Patients; Comparison between C. albicans and Non-albicans regarding the Type of Infection, Biofilm Formation and Virulence Genetic Profile

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Last updated: 28 Dec 2024

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Abstract

Background: Fungal infections have been on the rise during the last few decades. Immunnocompromised patients are at risk for developing deep mycotic infections of which invasive candidiasis (IC) is particularly serious. Although Candida albicans is the most common cause of IC, other species such as C. krusei, C. tropicalis, and C. parapsilosis have also been recovered with variable virulence factors. Objectives: We compared between albicans and non-albicans Candida infections among immunnocompromised patients admitted to the National Liver Institute (NLI) and Menoufia University Hospitals (MUH) as regards the incidence and type of infection, ability of biofilm formation as well as the virulence genetic profile. Methodology: 42 Candida isolates were collected from different types of infections and classified as C.albicans and C. non-albicans according to their characteristic reactions on Brillianceā„¢ Candida Chromogenic Agar. The biofilm-forming ability of the isolated species was demonstrated phenotypically by the microtitre plate method (MTP) and multiplex PCR assay verified the existence of the contributing virulence genes. Results: Out of 42 Candida isolates, 9 (21.4%), 26 (61.9%) and 7 isolates (16.6%) were recovered from superficial, invasive and device associated infections respectively. The number of non-albicans spp. exceeded that of C.albicans [25/42(59.52%): 17/42(40.48%)] and the highest frequency was for C. parapsilosis (14/25:56%) followed by C. tropicalis (8/25:32%) and finally C. krusei (3/25:12%).The percentage of biofilm-forming isolates was 94.1% for C. albicans and 72% for non-albicans Candida spp. with no significant statistical difference (P> 0.05). The expression of HWP1 gene was significantly higher in biofilm-forming Candida spp. (P= 0.02). Conclusion: Infections due to non-albicans species are rising especially in immunosuppressed patients. HWP1, ALS1, SAP5 and PLB1 genes were all detected in both C. albicans and non- albicans and the majority of isolated Candida spp. were biofilm producers.

DOI

10.21608/ejmm.2019.282760

Keywords

Candida, Albicans, Non-albicans, Genetic profile of Candida spp., Biofilm, Immunnocompromised patients

Authors

First Name

Samah

Last Name

Awad

MiddleName

M.

Affiliation

Department of Clinical Microbiology and Immunology, National Liver Institute, Menoufia University, Egypt

Email

samahawad2016@yahoo.com

City

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Orcid

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First Name

Asmaa

Last Name

Elbrolosy

MiddleName

M.

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Egypt

Email

asmaaelbrolosy@yahoo.com

City

-

Orcid

-

First Name

Eman

Last Name

Salem

MiddleName

H.

Affiliation

Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Egypt

Email

-

City

-

Orcid

-

First Name

Heba

Last Name

Abdallah

MiddleName

M.

Affiliation

Department of Clinical Pathology, National Liver Institute, Menoufia University, Egypt

Email

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City

-

Orcid

-

First Name

Mohammed

Last Name

Amin

MiddleName

-

Affiliation

Depatment of Hepatology and Gastroenterology, National Liver Institute, Menoufia University,, Egypt

Email

-

City

-

Orcid

-

Volume

28

Article Issue

2

Related Issue

39228

Issue Date

2019-04-01

Receive Date

2023-01-29

Publish Date

2019-04-01

Page Start

157

Page End

166

Print ISSN

1110-2179

Online ISSN

2537-0979

Link

https://ejmm.journals.ekb.eg/article_282760.html

Detail API

https://ejmm.journals.ekb.eg/service?article_code=282760

Order

282,760

Type

New and original researches in the field of Microbiology.

Type Code

2,038

Publication Type

Journal

Publication Title

Egyptian Journal of Medical Microbiology

Publication Link

https://ejmm.journals.ekb.eg/

MainTitle

Candidiasis in Immunnocompromised Patients; Comparison between C. albicans and Non-albicans regarding the Type of Infection, Biofilm Formation and Virulence Genetic Profile

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Article

Created At

28 Dec 2024