Valine/glycine ratio in newborn infants.
The ratio of valine/glycine was measured in the umbilical cord blood of 213 newborn infants of singleton pregnancies. The results obtained in small-for-data and preterm infants are compared with those in normal-term infants. A parallel assessment was made of the valine/glycine ratio in venous blood of the mothers of all these infants. An abnormally high rate was found in a small number of infants and also in a few mothers. There did not appear to be any association between these abnormal results and intra-uterine growth retardation.
D001724:Birth Weight; D005260:Female; D005312:Fetal Blood / Q000378:metabolism*; D005998:Glycine / Q000097:blood*; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008431:Maternal-Fetal Exchange; D009748:Nutrition Disorders; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D014633:Valine / Q000097:blood*
D014633:Valine; D005998:Glycine