The metabolic activity of the connective and muscle tissues during pregnancy, delivery and postpartum period
The concentration of the metabolites of the connective and muscle tissues in the urine of nonpregnant, pregnant women in the first trimester and on the days preceding the onset of labor (3 days), as well as parturient and pueperal women was defined. It was found, that with the beginning of pregnancy the catabolic activity of the connective and muscle tissues was reduced. The catabolic activity reaches a minimum in the II trimester and is kept up until the time of the natural pregnancy interruption. There is the maximum level of the metabolic activity in these tissues shortly before delivery. During delivery the elevated catabolic activity in the muscle tissue was kept. In the metabolism of the connective tissue during delivery two phenomena were recorded. The first is the continuation of the destruction, and the second is the termination of the form of the «young» collagen. In the postpartum period the metabolic activity was reduced to a level typical for nonpregnant women. It is concluded, that before the onset of labor the transformation of the fetal prolongy function of the femal organism into fetal interruption is completely stopped and there is the essence of the preliminary period. Delivery occurs at the level of predelivery readiness, which has already taken place. The periods of the most significant metabolic changes in the connective and muscle tissues because of their immensity can be regarded as critical for the development of the pregnancy not only for the female organism, but also for the fetus