Enzyme production of propionibacteria from patients with acne vulgaris and healthy persons.

375 strains of propionibacteria isolated from pustules, comedones, and from normal skin of patients with acne vulgaris and from healthy persons have been examined for their enzymatic activity. In contrast to healthy individuals, protease and caseinase production of strains from acne patients was significantly lower. On the other hand, DNA'ase production of strains from acne lesions was increased, and lecithinase could be demonstrated in strains from acne patients only.