PLASMA OXYTOCIN AND OXYTOCINASE LEVELS IN 3RD TRIMESTER OF PREGNANCY AND AT LABOR

Google Scholar
  • 1 January 1976
    • journal article
    • research article
    • Vol. 10  (4) , 283-287
Abstract
In women during the 3rd trimester of normal pregnancy and at labor the level of oxytocin and progesterone in plasma were determined by means of radioimmunoassay and the activity of oxytocinase was measured spectrophotometrically. The plasma oxytocin levels measured from the 25th wk of pregnancy showed a gradual increase with the peak values at the 39th and 40th wk. At labor the oxytocin values remain at the same level as these found at the end of pregnancy. The increase in oxytocin levels at contractions compared to its values found between contractions was not statistically significant. Oxytocinase levels also showed an ascending character until the 38th wk of pregnancy. Later a decrease was found which continued until the termination of pregnancy. At labor there was a decrease in progesterone level in plasma which was at about the limit of significance.

This publication has 1 reference indexed in Scilit: