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Angiotensin converting enzyme (ACE) has a central role in blood pressure homeostasis. It is present in low and fairly constant concentration in the serum and in high concentration in the pulmonary capillary bed. Unusually high serum angiotensin converting enzyme (SACE) activity is present in active sarcoidosis, an observation now confirmed by many investigators. In spite of its lack of specificity as a test for sarcoidosis, SACE provides a good monitor of disease activity which clinicians find useful in the management of patients with sarcoidosis. There continues to be considerable interest in SACE in sarcoidosis and with the recent development of simpler assays, more centres may be expected to offer SACE measurements as a service. In this paper we discuss the indications for estimating SACE in sarcoidosis and its relevance to current clinical practice.
Studdy et al. (Sun,) studied this question.