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Inhibitory profiles of fibroblast elastase (A) and neutrophil elastase (B). To measure fibroblast elastase, an enzyme solution obtained from a lysate of human fibroblasts was used at a concentration of 100 μg/mL. Neutrophil elastase was used at a concentration of 20 U/mL. Elastase activity was measured using STANA as a substrate in the presence of various inhibitors. Data represent means ± SD.
