Pityrosporum species as a cause of allergy and infection

Atopic Dermatitis and Fungi

“…1) (48,49,61 (36,41,46). However, there is great variation in the density and presence in various skin locations (35,88), in children compared to adults (15,33), and in normal skin compared to diseased skin (37,45).…”

“…However, there is great variation in the density and presence in various skin locations (35,88), in children compared to adults (15,33), and in normal skin compared to diseased skin (37,45). The Malassezia yeasts are also associated with several skin diseases such as pityriasis (tinea) versicolor, Malassezia folliculitis, seborrheic dermatitis, atopic dermatitis, and some forms of confluent and reticulate papillomatosis (Gougerot-Carteaud syndrome) (33,41). They may even be involved in systemic diseases (33,120).…”

“…The yeasts Malassezia and Candida may aggravate AD due to an allergic reaction (18,40,41,135). In particular, the role of the Malassezia yeasts is now documented in several papers (18,40,41).…”

“…In particular, the role of the Malassezia yeasts is now documented in several papers (18,40,41). Malassezia species are members of the normal human cutaneous flora, and a defect in the skin barrier may facilitate the contact of these yeasts with the immune system (41).…”

“…In particular, the role of the Malassezia yeasts is now documented in several papers (18,40,41). Malassezia species are members of the normal human cutaneous flora, and a defect in the skin barrier may facilitate the contact of these yeasts with the immune system (41). Candida yeasts are members of the normal flora of mucous membranes, and the major contact with the immune system is through the gastrointestinal tract and, in women, even through the vagina (111,135).…”