291661

Antifungal susceptibility testing of <i>Malassezia</i> spp isolated from patients with Pityriasis versicolor and healthy individuals

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Medical mycology

Abstract

Background:  The genus Malassezia is a normal flora of our body. It needs lipid supplements for its growth and is seen in the area rich in sebaceous glands. It is a causative agent of Pityriasis versicolor (PV), Malassezia folliculitis, seborrheic dermatitis and also associated with some systemic infection like fungemia, catheter acquired sepsis in patients receiving lipid parenteral nutrition.  Increased incidence of Malassezia infection emphasizes the need of susceptibility to choose a specific and accurate treatment. The aim of this study was to evaluate the in-vitro activity of amphotericin B, fluconazole, ketoconazole and voriconazole against the Malassezia spp isolated from PV and healthy individuals. Methodology: Modification of the CLSI M27-A3 document method using Christensen's urea broth with the addition of 0.5% Tween 40 and 0.1% Tween 80 was performed to evaluate the optimal antifungal susceptibility patterns of the isolates. Results: The Malassezia spp from healthy and PV patients shows variability in susceptibility pattern. Among the different species the lowest Microbial Inhibition Concentration (MICs) were found in amphotericin B, ketoconazole and Fluconazole with MIC50 values of 0.62, 0.03 and 0.125 in healthy individuals respectively. Isolates from PV patients showed slight highest value of MIC50 0.5, 0.25 and 0.5 respectively. Conclusion: The susceptibility pattern showed intra species variation and difference between healthy and PV patients as well. This emphasizes the need to identify the species and to evaluate the antifungal susceptibility of Malassezia. Further investigation is needed to correlate the in-vitro activity of antifungal agents with clinical outcomes.

DOI

10.21608/mid.2023.196612.1473

Keywords

Antifungal susceptibility, Pityriasis versicolor, Drug resistance, Malassezia

Authors

First Name

Vignesh

Last Name

Balaji

MiddleName

kanna

Affiliation

Department of Microbiology, Aarupadai Veedu Medical College &amp;amp; Hospital, Puducherry (Constituent college of Vinayaka Missions Research Foundation, VMRF)

Email

kannavignesh26@gmail.com

City

-

Orcid

-

First Name

Latha

Last Name

Ragunathan

MiddleName

-

Affiliation

Dept of Microbiology Aarupadai Veedu Medical College &amp; Hospital, (Constituent college of Vinayaka Missions Research Foundation, VMRF) Puducherry, India

Email

latha.ragunathan@avmc.edu.in

City

-

Orcid

0000-0003-2572-2678

First Name

Kavitha

Last Name

Kanniyan

MiddleName

-

Affiliation

Dept of Microbiology Aarupadai Veedu Medical College &amp; Hospital, (Constituent college of Vinayaka Missions Research Foundation, VMRF)Puducherry , India

Email

kavitha.kanniyan@avmc.ac.in

City

-

Orcid

-

First Name

Jeyakumari

Last Name

Duraipandian

MiddleName

-

Affiliation

Department of Microbiology Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Karaikal, India

Email

karailabscuddalore@yahoo.co.in

City

-

Orcid

-

Volume

4

Article Issue

3

Related Issue

42578

Issue Date

2023-08-01

Receive Date

2023-02-27

Publish Date

2023-08-01

Page Start

988

Page End

993

Print ISSN

2682-4132

Online ISSN

2682-4140

Link

https://mid.journals.ekb.eg/article_291661.html

Detail API

https://mid.journals.ekb.eg/service?article_code=291661

Order

33

Type

Original Article

Type Code

1,157

Publication Type

Journal

Publication Title

Microbes and Infectious Diseases

Publication Link

https://mid.journals.ekb.eg/

MainTitle

Antifungal susceptibility testing of <i>Malassezia</i> spp isolated from patients with Pityriasis versicolor and healthy individuals

Details

Type

Article

Created At

25 Dec 2024