[Angiotensin-converting enzyme (ACE). Increased serum activities in patients with dermatological diseases (author's...

Serum activities of ACE were investigated in 40 patients with dermatological disease and in nine patients with sarcoidosis. The method of Cushman and Cheung, modified according to Lieberman, was used. Both sarcoidosis patients and patients with dermatological diseases showed marked elevations of ACE-activity. The increase in ACE-activity might result from inflammation and immunological events.