The synthesis of lactose from glucose in the mammary gland

Abstract

Glucose labelled uniformly with C14 was injected intraven. into a lactating goat and the specific activities of blood glucose, lactose, and of the glucose and galactose residues of lactose were measured in blood and milk samples taken up to 12 hr. after the injn. The results show that blood glucose was the principal source of both the glucose and galactose residues of the milk lactose.