Cited by 1,796Advanced MRI Techniques and ApplicationsNeuroscience and Neuropharmacology ResearchMedical Imaging Techniques and Applications

Nonoxidative Glucose Consumption During Focal Physiologic Neural Activity

Fox, Peter T., Raichle, Marcus E., Mintun, Mark A., Dence, Carmen·1988·Science

Abstract

Brain glucose uptake, oxygen metabolism, and blood flow in humans were measured with positron emission tomography, and a resting-state molar ratio of oxygen to glucose consumption of 4.1:1 was obtained. Physiological neural activity, however, increased glucose uptake and blood flow much more (51 and 50 percent, respectively) than oxygen consumption (5 percent) and produced a molar ratio for the increases of 0.4:1. Transient increases in neural activity cause a tissue uptake of glucose in excess of that consumed by oxidative metabolism, acutely consume much less energy than previously believed, and regulate local blood flow for purposes other than oxidative metabolism.

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Crossref · 10.1126/science.3260686

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27 of 27 references verified0 citation errors · 0 not checkable

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  • PET studies in humans have reported increased cerebral blood flow and glucose utilization without a corresponding rise in oxygen consumption during REM sleep.

    “Supporting this glycolytic shift hypothesis, PET studies in humans have reported increased cerebral blood flow and glucose utilization without a corresponding rise in oxygen consumption during REM sleep69.”
  • Aerobic glycolysis persists for at least 40 minutes following cognitively demanding task performance, despite the return of blood flow and lactate production to control levels.

    “Curiously, AG persists for at least 40 minutes following cognitive demanding task performance, despite the return of blood flow and lactate production to control levels”
  • Uncoupling of glucose metabolism from oxygen consumption is characteristic of the brain's response to imposed tasks.

    “Uncoupling of glucose metabolism from oxygen consumption is characteristic of the brain’s response to imposed tasks (‘activation’)”
  • The drop in OGI during brain stimulation was the first indication of transient uncoupling of glycolysis and oxidative phosphorylation in the brain.

    “The drop in OGI during brain stimulation was the first indication of some transient uncoupling of glycolysis and oxphos in the brain (Fox et al., 1988).”
  • Brain activation increases glucose consumption much more than oxygen consumption.

    “However, with brain activation, glucose consumption increases much more than oxygen consumption (Fox and Raichle, 1986; Fox et al., 1988).”

    From Neuronal Stimulation Triggers Neuronal Glycolysis and Not Lactate Uptake (2017) · cites this paper as Fox et al., 1988

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Authors
Fox, P. T., Raichle, M. E., Mintun, M. A., & Dence, C.
Affiliations
Washington University in St. Louis (US)
Venue
Science
Published
1988-07-22
Volume
241
Issue
4864
Pages
462-464
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1993303421
Cited by
1,796
References
27
Citations by year
2026: 24 · 2025: 32 · 2024: 34 · 2023: 30 · 2022: 29 · 2021: 69 · 2020: 29 · 2019: 37 · 2018: 58 · 2017: 50 · 2016: 46 · 2015: 46 · 2014: 59 · 2013: 56 · 2012: 56
FWCI
19.19
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (HL 13851)
  • National Institute of Neurological Disorders and Stroke (NS-07025, NS 06833)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
Keywords
brain glucose uptake, oxygen consumption, cerebral blood flow, neuronal activity, brain energy metabolism, local blood flow regulation
MeSH terms
Brain, Cerebrovascular Circulation, Energy Metabolism, Glucose, Humans, Neurons, Oxygen, Tomography, Emission-Computed, Visual Cortex, Visual Perception

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