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[Free amino acids in the amniotic fluid and in maternal blood in advanced pregnancy]
We have studied a series of sixteen free amino-acids as well as total blood amino-acid and liquor amino-acids in 56 women between the 25th and 44th weeks of pregnancy. The results have been analysed statistically and demonstrated graphically. The amino-acid levels rise from the 25th week of the pregnancy until term (p less than 0.05) in peripheral blood. On the other hand the total level of amino-acids in the amniotic fluid drops from the 25th week of pregnancy remarkably (p less than 0,01). Different amino-acids show different curves. The increase in the level of total blood amino-acids is principally due to a rise in glycine and leucine, while the other amino-acids as a whole stay constant. The spectrum of amino-acids in the amniotic fluid is however a little different and the drop in total amino-acids if principally due to the threonine-serine fraction and partly to the glutamine, proline, alanine, lysine and valine elements, whereas the rest stay the same or even raised.
We have studied a series of sixteen free amino-acids as well as total blood amino-acid and liquor amino-acids in 56 women between the 25th and 44th weeks of pregnancy. The results have been analysed statistically and demonstrated graphically. The amino-acid levels rise from the 25th week of the pregnancy until term (p less than 0.05) in peripheral blood. On the other hand the total level of amino-acids in the amniotic fluid drops from the 25th week of pregnancy remarkably (p less than 0,01). Different amino-acids show different curves. The increase in the level of total blood amino-acids is principally due to a rise in glycine and leucine, while the other amino-acids as a whole stay constant. The spectrum of amino-acids in the amniotic fluid is however a little different and the drop in total amino-acids if principally due to the threonine-serine fraction and partly to the glutamine, proline, alanine, lysine and valine elements, whereas the rest stay the same or even raised.