[Angiotensin-converting enzyme activity in dehydrated rats].

The serum activity of angiotensin converting enzyme in 10 rats before and after a five day dehydration was examined. It was measured spectrophotometrically and expressed in units corresponding to 1 mnol of hipuric acid liberated from Hip-Gly-Gly supstrate. The result show that serum activity of angiotensin converting enzyme was significantly increased in rats after the period of dehydration.