Abstract
Results of an IR spectroscopic investigation of films of blood plasma taken from women of reproductive age, pregnant women with positive and negative Rh factors, and Rh-immunized women were presented as a function of gestational age. It was found that the lipoprotein content in blood plasma of all groups of pregnant women increased during the early stages of pregnancy (17–23 weeks) irrespective of the Rh factor and attained its peak value by weeks 30–35. It was shown that the lipoprotein level in blood plasma as a function of gestational age was quantitatively the same for pregnant women with positive and negative Rh factors. It was established for the first time that this dependence for Rh-immunized women featured a considerable increase of lipoprotein content at gestational age 30–32 weeks and declined acutely by week 36.
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