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[Relationship between Malassezia Yeast and Infantile Seborrhoeic Dermatitis]

A Nakabayashi1, Y Sei

  • 1Department of Dermatology, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama 227-8501, Japan.

Nihon Ishinkin Gakkai Zasshi = Japanese Journal of Medical Mycology
|November 13, 2001
PubMed

Insights

Infantile seborrhoeic dermatitis (ISD) is linked to higher yeast counts on the face. Malassezia furfur and Malassezia globosa yeasts were more prevalent in infants with ISD compared to healthy controls.

Area of Science:

  • Dermatology
  • Microbiology
  • Pediatrics

Background:

  • Infantile seborrhoeic dermatitis (ISD) is a common skin condition in newborns.
  • The role of fungal organisms, particularly Malassezia yeast, in ISD pathogenesis is debated.

Purpose of the Study:

  • To investigate the quantitative and qualitative differences in facial yeast colonization between infants with ISD and healthy infants.
  • To determine if specific Malassezia species are associated with infantile seborrhoeic dermatitis.

Main Methods:

  • Direct microscopic examination of yeast cell counts on the right side of the face.
  • Identification of yeast isolates from the left side of the face using the Tween test.
  • Comparison between 52 infants with ISD and 47 healthy infants.

Main Results:

  • Yeast cells were significantly more numerous on the faces of infants with ISD compared to healthy infants.
  • Malassezia furfur and Malassezia globosa were isolated at significantly higher rates in infants with ISD.
  • These findings suggest a potential role for these yeasts in the development of ISD.

Conclusions:

  • Increased facial yeast colonization, particularly by Malassezia furfur and Malassezia globosa, is associated with infantile seborrhoeic dermatitis.
  • Further research is warranted to explore the causal relationship and therapeutic implications.

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