Red cell enzymes and intermediates in AGA term newborns, AGA preterm newborns and SGA term newborns.
Red cell enzyme activities and 2,3-diphosphoglycerate and adenosine-triphosphate levels in cord blood of three groups of newborn infants were studied. The groups were classified according to birthweight in relation to intrauterine growth and gestational age. Only phosphofructokinase, glyceraldehyde-3-phosphate dehydrogenase and enolase activity values differed significantly among the groups. The activity of phosphofructokinase was lower in small-for-date term infants (TSGA) and preterm adequate for gestational age (PTAGA) in comparison to term infants adequate for gestational age (TAGA). Glyceraldehyde-3-phosphate dehydrogenase activity was higher in TAGA, in comparison to PTAGA, with no other difference among the groups. Enolase activity was found to be higher in TSGA compared to TAGA and higher in PTAGA compared to TAGA. No differences were found between PTAGA and TSGA.
Ramos
J L
JL
Children's Institute, General Hospital, Faculty of Medicine, University of São Paulo, Brazil.
Nonoyama
K
K
Quintal
V S
VS
Barretto
O C
OC
D004912:Erythrocytes / Q000201:enzymology*; D005312:Fetal Blood; D005865:Gestational Age; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases / Q000378:metabolism*; D006801:Humans; D007231:Infant, Newborn / Q000378:metabolism*; D007234:Infant, Premature / Q000378:metabolism*; D007236:Infant, Small for Gestational Age / Q000378:metabolism*; D010732:Phosphofructokinase-1 / Q000378:metabolism*; D010751:Phosphopyruvate Hydratase / Q000378:metabolism*
D005987:Glyceraldehyde-3-Phosphate Dehydrogenases; D010732:Phosphofructokinase-1; D010751:Phosphopyruvate Hydratase