Three marker enzymes were measured during treatment of psoriatic plaques with two different therapies. During treatment with clobetasol propionate the epidermal enzymes (acid phosphatase and glucose-6-phosphate dehydrogenase) returned to normal within 14 days whereas capillary alkaline phosphatase remained at the original level. By contrast, all three marker enzymes reverted to normal at the same tempo during PUVA therapy, reaching the control range after 4-8 weeks.
Acid Phosphatase Alkaline Phosphatase