Neural activity leads to the mobilization of energy from glycogen in astrocytes. A new paper reports that neurons have an ambivalent relationship with glycogen: they can synthesize it themselves, but ...

Multiple insulin-regulated enzymes participate in hepatic glycogen synthesis, and the rate-controlling step responsible for insulin stimulation of glycogen synthesis is unknown. We demonstrate that ...

Hepatocytes isolated from livers of fasted rats form little glycogen from glucose or lactate at concentrations below 20 mM. Glycogen is formed in substantial quantities at a glucose concentration of ...