Cited by 374Neuroscience and Neuropharmacology ResearchNeurological Disorders and TreatmentsNeurological Disease Mechanisms and Treatments

Astrocytic glycogen influences axon function and survival during glucose deprivation in central white matter

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Wender, Regina, Brown, Angus M., Fern, Robert, Swanson, Raymond A., Farrell, Kevin, Ransom, Bruce R.·2000·The Journal of Neuroscience

Abstract

We tested the hypothesis that astrocytic glycogen sustains axon function during and enhances axon survival after 60 min of glucose deprivation. Axon function in the rat optic nerve (RON), a CNS white matter tract, was monitored by measuring the area of the stimulus-evoked compound action potential (CAP). Switching to glucose-free artificial CSF (aCSF) had no effect on the CAP area for approximately 30 min, after which the CAP rapidly failed. Exposure to glucose-free aCSF for 60 min caused irreversible injury, which was measured as incomplete recovery of the CAP. Glycogen content of the RON fell to a low stable level 30 min after glucose withdrawal, compatible with rapid use in the absence of glucose. An increase of glycogen content induced by high-glucose pretreatment increased the latency to CAP failure and improved CAP recovery. Conversely, a decrease of glycogen content induced by norepinephrine pretreatment decreased the latency to CAP failure and reduced CAP recovery. To determine whether lactate represented the fuel derived from glycogen and shuttled to axons, we used the lactate transport blockers quercetin, alpha-cyano-4-hydroxycinnamic acid (4-CIN), and p-chloromercuribenzene sulfonic acid (pCMBS). All transport blockers, when applied during glucose withdrawal, decreased latency to CAP failure and decreased CAP recovery. The inhibitors 4-CIN and pCMBS, but not quercetin, blocked lactate uptake by axons. These results indicated that, in the absence of glucose, astrocytic glycogen was broken down to lactate, which was transferred to axons for fuel.

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Crossref · 10.1523/jneurosci.20-18-06804.2000

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  • Glycogen in astrocytes is able to sustain axon function during glucose deprivation in central nervous system white matter.

    “although it is noteworthy that glycogen in astrocytes is able to sustain axon function during glucose deprivation in central nervous system white matter.65”

    From Sleep Deprivation and Circadian Disruption (2015) · cites this paper as [65]

  • Glycogen in astrocytes is able to sustain axon function during glucose deprivation in CNS white matter.

    “It is noteworthy that glycogen in astrocytes is able to sustain axon function during glucose deprivation in central nervous system (CNS) white matter.28”

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Authors
Wender, R., Brown, A. M., Fern, R., Swanson, R. A., Farrell, K., & Ransom, B. R.
Affiliations
  • University of Washington (US)
  • Pediatrics and Genetics (US)
  • San Francisco VA Medical Center (US)
Venue
The Journal of Neuroscience
Published
2000-09-15
Volume
20
Issue
18
Pages
6804-6810
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1928529925
Cited by
374
References
51
Citations by year
2026: 2 · 2025: 8 · 2024: 11 · 2023: 13 · 2022: 8 · 2021: 10 · 2020: 21 · 2019: 18 · 2018: 22 · 2017: 19 · 2016: 14 · 2015: 12 · 2014: 23 · 2013: 15 · 2012: 21
FWCI
5.29
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Yale University
  • National Institutes of Health (5r01ns031914-07)
  • National Institute of Neurological Disorders and Stroke (T32NS007144, R01NS015589, NS31914, NS15589, T32NS07144)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
glucose deprivation, axon survival, optic nerve, compound action potential, lactate transport, lactate shuttle, norepinephrine, quercetin, axonal energy metabolism
MeSH terms
Action Potentials, Animals, Astrocytes, Axons, Biological Transport, Cell Survival, 4-Chloromercuribenzenesulfonate, Coumaric Acids, Culture Media, Enzyme Inhibitors, Glucose, Glycogen, Optic Nerve, Quercetin, Reaction Time, Lactic Acid, Rats, Long-Evans, Rats, In Vitro Techniques

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