Uptake and Release of Energy Substrates, Oxygen, and Carbon Dioxide by the Hindlimb of the Fasting Infant Baboon

Abstract
Veno-arterial differences for energy substrates across hindlimb tissues were measured in baboon infants at birth and at 6 weeks. Hindlimb glucose uptake was 2.36 ± 0.80 μM/min in the newly born baboons and 1.81 ± 0.56 μM/min in the 6-week-old infants. The major precursor released by the infant baboon hindlimb was lactate, although release of alanine and glycerol was significant. These studies complement previous data suggesting that glycolysis is a major pathway for energy production in the infant primate.