Journal
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
Volume 30, Issue 12, Pages 1893-1894Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/jcbfm.2010.152
Keywords
astrocyte; brain activation; glucose channeling; glycogen; neuron
Categories
Funding
- NIDDK NIH HHS [R01 DK081936] Funding Source: Medline
Ask authors/readers for more resources
Recognition of glycogen as an active participant in the energetics of brain activation is replacing the long-held concept of glycogen as an emergency energy reserve, but the functional roles of glycogen and the cellular utilization of glycogen carbon are unresolved issues. Metabolic modeling by DiNuzzo et al, in this issue predicts that mobilization of glycogen during brain activation provides fuel for activated astrocytes and increases product inhibition of hexokinase thereby reducing astrocytic utilization of blood-borne glucose and increasing glucose availability for activated neurons. Glucose buffering and glucose channeling (not lactate shuttling to neurons) are proposed to be the consequences of glycogenolysis. Journal of Cerebral Blood Flow & Metabolism (2010) 30, 1893-1894; doi:10.1038/jcbfm.2010.152; published online 8 September 2010
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available