title: gamma-Glutamyltransferase in the newborn.
abstract: gamma-Glutamyltransferase activity was measured serially in newborn infants. Median activity was 94 units/l, with the 95th centile at 243 units/l. It was unrelated to gestation. Significant increases occurred after treatment with phenobarbitone and with the introduction of oral feeding after parenteral nutrition. It was a poor indicator of total parenteral nutrition (TPN) liver damage.
mesh_terms: D006801:Humans; D007225:Infant Food; D007231:Infant, Newborn / Q000097:blood*; D007234:Infant, Premature; D008099:Liver / Q000293:injuries; D010289:Parenteral Nutrition, Total / Q000009:adverse effects; D010634:Phenobarbital / Q000494:pharmacology; D011503:Transglutaminases / Q000097:blood*
chemical_list: D011503:Transglutaminases; D010634:Phenobarbital