Milk glucose as an index of the intracellular glucose concentration of rat mammary gland

Abstract

The aqueous glucose concentration of rat milk is about 0.29mM, apparently unmodified by prolonged storage in the gland. Infused 3-O-methylglucose reaches a milk concentration similar to its measured mammary intracellular concentration. Milk glucose may therefore reflect its intracellular concentration in the mammary secretory cell.