Cited by 92Sleep and Wakefulness ResearchNeuroscience and Neuropharmacology ResearchCircadian rhythm and melatonin

Regulation of neuron-astrocyte metabolic coupling across the sleep-wake cycle

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Petit, J.-M., Magistretti, P.J.·2016·Neuroscience

Abstract

Over the last thirty years, a growing number of studies showed that astrocytes play a pivotal role in the energy support to synapses. More precisely, astrocytes adjust energy production to neuronal energy needs through different mechanisms grouped under the term "neurometabolic coupling" (NMC). In this review we describe these mechanisms of coupling and how they involve astrocytes. From a physiological point of view, these mechanisms of coupling are particularly important to ensure normal synaptic functioning when neurons undergo rapid and repetitive changes in the firing rate such as during the sleep/wake transitions. Investigations into brain energy metabolism during the sleep/wake cycle have been mainly focused on glucose (Gluc) consumption and on glycogen metabolism. However, the recent development of substrate-specific biosensors allowed measurements of the variation in extracellular levels of glutamate, Gluc and lactate (Lac) with a time resolution compatible with sleep stage duration. Together with gene expression data these experiments allowed to better define the variations of energy metabolite regulation across the sleep/wake cycle. The aim of this review is to bring into perspective the role of astrocytes and NMC in the regulation of the sleep/wake cycle. The data reviewed also suggest an important role of the astrocytic network. In addition, the role of astrocytes in NMC mechanisms is consistent with the "local and use dependent" sleep hypothesis.

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Crossref · 10.1016/j.neuroscience.2015.12.007

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  • Neurometabolic coupling adjusts the local energy supply and cerebral blood flow to variations in neuronal activity and enables appropriate metabolic substrate delivery to maintain functioning of neurons.

    “A phenomenon known as ‘neurometabolic coupling’, adjusts the local energy supply and cerebral blood flow to variations in neuronal activity and enables appropriate metabolic substrate delivery to maintain functioning of neurons [32].”

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Authors
Petit, J.-M., & Magistretti, P. J.
Affiliations
Centre Hospitalier Universitaire Vaudois (CH)
Corresponding author
Petit, J.-M.
Venue
Neuroscience
Publisher
Elsevier BV
Published
2016-05
Volume
323
Pages
135-156
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2200194422
Cited by
92
References
251
Citations by year
2026: 6 · 2025: 7 · 2024: 9 · 2023: 4 · 2022: 6 · 2021: 12 · 2020: 14 · 2019: 7 · 2018: 7 · 2017: 15 · 2016: 5
FWCI
0.89
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (publishedVersion, other-oa)
  • IRIS (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (3100AO, 108336)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
neurometabolic coupling, sleep-wake cycle, astrocytes, brain energy metabolism, glucose utilization, glycogen metabolism, glutamate, lactate
MeSH terms
Animals, Astrocytes, Humans, Neurons, Sleep, Wakefulness

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