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Infecting Mice with Malassezia spp. to Study the Fungus-Host Interaction
06:19

Infecting Mice with Malassezia spp. to Study the Fungus-Host Interaction

Published on: November 6, 2019

[Malassezia infections]

Yoshihiro Sei1

  • 1Teikyo University School of Medicine Mizonokuchi Hospital Professor, Head of department of Dermatology.

Medical Mycology Journal
|April 3, 2012
PubMed

Insights

Malassezia yeasts, normally harmless skin microbes, can cause infections like Pityriasis versicolor. Most species require fatty acids, complicating their study and identification.

Area of Science:

  • Medical Mycology
  • Dermatology
  • Microbiology

Background:

  • Malassezia yeasts are common skin microflora.
  • Certain conditions can lead to opportunistic infections like Pityriasis versicolor and Malassezia folliculitis.
  • Lipophilic yeasts, including Malassezia, are recognized as significant opportunistic pathogens.

Purpose of the Study:

  • To review the characteristics of Malassezia yeasts.
  • To highlight the challenges in isolating and identifying lipid-dependent species.
  • To provide an updated overview of the Malassezia genus.

Main Methods:

  • Literature review on Malassezia yeast biology and pathogenicity.
  • Discussion of isolation and identification techniques for lipophilic yeasts.
  • Taxonomic classification of known Malassezia species.

Main Results:

  • Malassezia yeasts can transition from commensals to pathogens.
  • Most Malassezia species are lipophilic, requiring specific growth conditions.
  • The genus Malassezia includes one non-lipid-dependent species (M. pachydermatis) and numerous lipid-dependent species.

Conclusions:

  • Understanding Malassezia yeast biology is crucial for managing superficial skin infections.
  • Specific laboratory methods are necessary for the accurate identification of these lipophilic fungi.
  • The diversity within the Malassezia genus impacts their pathogenic potential and clinical presentation.

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