Malassezia Yeastsas Commensals on Human Skin

Authors

  • Asja Prohić Department of Dermatology Sarajevo University Clinical Center

DOI:

https://doi.org/10.5644/Radovi.400

Keywords:

Malassezia, species, healthy skin

Abstract

Yeasts of the genus Malassezia are known to be members of the skin microflora of humans and other warm-blooded animals. Under the influence of predisposing factors, they become pathogenic and are associated with several skin disorders and even systemic infections. The taxonomy of these lipophilic yeasts has recently been modified and includes seven species referred as Malassezia. The aim of this study was to analyse the prevalence of Malassezia species in normal skin and assess the distribution of the species according to patient sex and age. Forty subjects with clinically healthy skin were studied. The samples were obtained by scraping the skin surface of the scalp of all subjects and then incubated on modified Dixon agar. The yeasts isolated were identified by their morphological and physiological properties according to Guillot et al method. M. sympodialis was the predominant species on trunk skin and M. restricta on scalp skin. We found no differences between isolated species and the sex and age of the individuals.

References

Baillon H. Traite de botanique medicale cryptogamique Paris: Octave Douin, 1889: 234-239.

Gueho E. Midgley G. Guillot J. The Genus Malassezia with description of four new species. Antonie van Leeuwenhoek 1996;69:337-55.

Gupta AK, Kohli Y, Summerbell RC. Molecular diffeientiation of seven Malassezia species. J Clin Microbiol 2000;38:1869-75.

Senczek D, Siesenop U, Boehm KM. Characterization of Malassezia species by means of phenotypic characteristics and detection of electrophoretic kariotypes by pulsed-filed gel electrophoresis (PFGE). Mycoses 1999;42:409-14.

Guillot J, Bond R. Malassezia pachydennatis'. a review. Med Mycol 1999;37:295-306.

Faergemann J. Lipophilic yeasts in skin disease. Semin Dermatol 1985; 4:173-184.

Roia FC, Wanderwyk RW, Beal JA. The human scalp as habitat for yeasts. J Soc Cosmetic Chem 1963; 14: 81-88.

Marcon MJ, Powell DA. Human infections due to Malassezia spp. Clin Microbiol Rew 1992; 5 (2): 101-119.

Roberts SOB. Pityrosporum orbiculare: incidence and distribution on clinically normal skin. BrJ Dermatol 1969a; 81:265-269.

Gueho E. Boekhout T, Ashbee HR, Guillot J, Van Belkum A, Faergemann J. The role of Malassezia species in the ecology of human skin and as pathogens. Med Mycol 1998; 36 (Suppl 1): 220-9.

Guillot J, Gueho E, Lesourd M, Midgley G, Chevrier G, Dupont B. Identification of Malassezia species. A practical approach. J Mycol Med 1996;6:103-10.

Gupta AK, Kohli Y, Summerbell RC, Faergemann J. Quantitative culture of Malassezia species from different body site of individuals with and without dermatoses. Med Mycol 2001a;38:243-51.

Gupta AK, Kohli Y, Faergemann J, Summerbell RC. Epidemiology of Malassezia yeasts associated with pityriasis versicolor in Ontario, Canada. Med Mycol 200 lb;39:199-206.

McGinley KJ; Leyden LJ, Marples RR, Kligman AM. Quantitative microbiology of the scalp in non-dandruff, dandruff and seborrheic dermatitis. J Invest Dermatol 1975; 64: 401-405.

Midgley G. The lipophilic yeasts: State of the art and prospects. Med Mycol 2000; 38 (Suppl 1): 9-16.

Crespo Erchiga V, Ojeda Martos A, Vera Casano A, Crespo Erchiga A, Sanches Fajardo F, Gueho E. Mycology of pityriasis versicolor. J Mycol Med 1999b; 9:143-8.

Crespo Erchiga V, Ojeda Martos A, Vera Casano A, Crespo Erchiga A, Sanches Fajardo F, Gueho E. Malassezia globosa as the causative agent of pityriasis versicolor. Br J Dermatol 2000; 143:799-803.

Arzumanian VG. The yeasts Malassezia on the skin of healthy individuals and patients with atopic dermatitis. Vestn Ross Akad Med Nauk 2001; 2:29-31.

Aspiroz C, Moreno LA, Rezusta A, Rubio C. Differentiation of thre biotypes of Malassezia species on human normal skin. Correspondence with M.globosa, M.sympodialis and M.restricta. Mycopathologia 1999; 145: 69-74.

Bandahaya M. The distribution of Malassezia furfur and Malassezia pachydermatis on normal human skin. Southeast Asian J Trop Med Public Health 1993;24:343-6.

Van Belkum A, Boekhout T, Bosboom R. Monitoring spread of Malassezia infections in neonatal intensive care unit by PCR-mediated genetic typing. J Clin Microbiol 1994;32:2528-32.

Downloads

Published

15.08.2005

Issue

Section

Works

How to Cite

Malassezia Yeastsas Commensals on Human Skin. (2005). Acta Medica Academica, 34, 107-115. https://doi.org/10.5644/Radovi.400

Most read articles by the same author(s)