Majkić-Singh N, Vuković A, Spasić S, Ruzic A, Stojanov M, Berkeś I
Clin Biochem. 1982 Jun;15(3):152-3. doi: 10.1016/s0009-9120(82)90608-7.
Reference values for the activity of oxytocinase were determined in the sera of 371 women during normal pregnancy. An exponential relationship between enzyme activities and gestational age was found. The activity of oxytocinase (CAP) increased progressively from the beginning to the end of pregnancy. Statistical evaluation showed a significant difference between the 5th and 2nd months, as well as after the 20th week of pregnancy.