Metabolic response to starvation in late pregnant XXXX . I. Maternal response.

@entity1568 @entity1133 @entity3265 @entity1674 @entity412 @entity1011 @entity35 @entity414
The aim of the present study was to examine effect of prolonged fasting on muscle glycogen and @entity412 concentration as well as on non-protein @entity1568 excretion with urine in late pregnant @entity35 . They were divided into four groups: I--fed, pregnant for 21 days, II--fasted for one day (from 20 to 21 day of pregnancy), III--fasted for two days (from 19 to 21 day) and IV--fasted for three days (from 18 to 21 day). The concentration of glycogen and @entity1674 was determined in the following tissues: the white and red layers of the vastus lateralis, the soleus, the diaphragm, the heart and the liver. The urine was collected in each group 24 h (from 20 to 21 day). It has been found that concentration of glycogen in the leg muscles is reduced by about 50% and in the diaphragm by 75% already after 24 h fasting and then remains stable. The concentration of glycogen in the heart increases after one day of fasting and then returns to the control value. The effect of fasting on the concentration of @entity1674 in the tissues depends on a tissue studied. It decreases gradually in the white vastus, and in the soleus only on the third day. It is elevated during the first two days of fasting in the red vastus, diaphragm and liver and returns to the control level on the third day. The fasting doubled the concentration of @entity1674 in the heart. The urinary @entity1133 , @entity1011 , and @entity414 excretion decreases and @entity3265 excretion increases during fasting. The results obtained indicate that the late gestation does not alter response of muscle glycogen metabolism to fasting as compared to the male @entity35 . It does effect metabolism of @entity1674 .
