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Fungal flora of human faeces in psoriasis and atopic dermatitis.
Faeces samples taken from 343 patients with psoriasis and 581 patients with atopic dermatitis were subjected to mycological examination. Yeasts were detected in 68% of the psoriatics and in 70% of the patients with atopic dermatitis but in only 54% of the controls (n = 50). Qualitative analysis revealed a predominance of Candida albicans. Non-pathogenic yeasts constituted only 1% in each of these groups. Of the hyphomycetes, Geotrichum candidum occurred in 22% of the psoriatics, in 10% of the atopic dermatitis patients and in 3% of the controls. Aspergillus species were found in 1% of the patients but not in the controls. Stool samples collected on three consecutive days from 141 patients were examined for yeasts. Qualitative correlation between all three samples was shown in 95% of the patients and quantitative correlation in 38%. Deviations were mainly of exponential magnitude. Germ cell concentration of 10(4) cells per ml and above were measured in 38% of the psoriatics and in 28% of the atopic dermatitis patients but in only 22% of the test subjects with healthy skin. There was no correlation between the concentration levels of yeasts in the faeces and the extent of psoriasis or atopic dermatitis.
Zentrum der Dermatologie und Venerologie, Abt. I, Johann-Wolfgang-Goethe-Universität, Frankfurt/Main, Germany FR.,
Pub Type(s)Journal Article