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News and Views
Nature 431, 137-138 (9 September 2004) | doi:10.1038/431137a; Published online 8 September 2004
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Neurobiology: Feeding the brain
Claire Peppiatt1 & David Attwell1
Abstract
In computationally active areas of the brain, the blood flow is increased to provide more energy to nerve cells. New data fuel the controversy over how this energy supply is regulated.
Like all tissues, our brains need energy to function, and this comes in the form of oxygen and glucose, carried in the blood. The brain's information-processing capacity is limited by the amount of energy available1, so, as has been recognized for more than a century, blood flow is increased to brain areas where nerve cells are active2.
- Claire Peppiatt and David Attwell are in the Department of Physiology, University College London, Gower Street, London WC1E 6BT, UK.
e-mail: Email: d.attwell@ucl.ac.uk
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