Fennessey, P.V.

alanine uptake plasma hepatic fetus concentration umbilical glutamine infusion glutamate placenta increase placental uterine blood dexamethasone circulation study plasma glutamine control alanine uptake table period output glucose disposal enrichment metabolism change decrease alanine flux tracer sheep transport lactate sample liver alanine infusion hepatic glutamine uptake battaglia ratio effect december hepatic glutamate output meschia physiol placental alanine metabolism hepatic glutamine hepatic output control period plasma alanine concentration downloaded dexamethasone infusion venou disposal rate umbilical uptakes acid concentrations difference artery exchange endocrinol umbilical venous blood metab utilization article water lactate concentrations glucocorticoid mother 13 c-labeled alanine umbilical vein infusate 0.001 umbilical alanine uptake battaglia fc meschia g weight umbilical uptake uterine uptake turnover