PMID: 7537004Jan 1, 1995Paper

Pityrosporum ovale in healthy children, infantile seborrhoeic dermatitis and atopic dermatitis

Acta Dermato-venereologica. Supplementum
A Broberg

Abstract

The occurrence of Pityrosporum ovale was studied in healthy children, children with infantile seborrhoeic dermatitis (ISD) and in patients with atopic dermatitis (AD). Twenty children with ISD and twenty healthy infants were subjected to culture for P. ovale. Positive cultures were found in 18 of 20 infants with ISD, compared with 4 of 20 controls. The same culture medium containing olive oil as one of the lipids was used to evaluate the frequency of positive P. ovale cultures in 60 patients with AD, 40 patients with rhinoconjunctivitis and/or asthma (RA) and 40 children and young adults with no atopic history (HC). The results of the quantitative cultures from the forehead did not differ between the groups. P. ovale cultures were positive in 0-20% of children aged 0-10 years and in 60-90% of the 11-20-year-old subjects. Positive P. ovale cultures were found in 87% of 138 healthy children aged 2 months to 15 years when cultures were performed on a medium containing whole fat cows' milk as one lipid source. The largest number of colonies was found among children aged 2-23 months and among children older than 9 years. The occurrence of specific IgE antibodies to P. ovale was evaluated with a skin prick test (SPT) and RAST and com...Continue Reading

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