Angiotensin converting enzyme in healthy Thais.

Serum angiotensin converting enzyme (ASCE) has some clinical values, especially in sarcoidosis. The activity of the enzyme in serum is thus determined in healthy adults and new borns as a reference value. There was no difference between sexes in any group. The mean value in 167 adults, aged from 15 to 50 years was 36.3 + 9.6 units/ml, but the suggested reference value was 35.2 + 9.8 units/ml. for 107 persons, aged 18 to 30 years and for which risks and underlying disorders are naturally smaller than for other groups.