Cited by 114Neuroscience and Neuropharmacology ResearchMitochondrial Function and PathologyNeural dynamics and brain function

Glycolysis and oxidative phosphorylation in neurons and astrocytes during network activity in hippocampal slices

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Ivanov, Anton I, Malkov, Anton E, Waseem, Tatsiana, Mukhtarov, Marat, Buldakova, Svetlana, Gubkina, Olena, Zilberter, Misha, Zilberter, Yuri·2014·Journal of Cerebral Blood Flow & Metabolism

Abstract

Network activation triggers a significant energy metabolism increase in both neurons and astrocytes. Questions of the primary neuronal energy substrate (e.g., glucose vs. lactate) as well as the relative contributions of glycolysis and oxidative phosphorylation and their cellular origin (neurons vs. astrocytes) are still a matter of debates. Using simultaneous measurements of electrophysiological and metabolic parameters during synaptic stimulation in hippocampal slices from mature mice, we show that neurons and astrocytes use both glycolysis and oxidative phosphorylation to meet their energy demands. Supplementation or replacement of glucose in artificial cerebrospinal fluid (ACSF) with pyruvate or lactate strongly modifies parameters related to network activity-triggered energy metabolism. These effects are not induced by changes in ATP content, pH(i), [Ca(2+)](i) or accumulation of reactive oxygen species. Our results suggest that during network activation, a significant fraction of NAD(P)H response (its overshoot phase) corresponds to glycolysis and the changes in cytosolic NAD(P)H and mitochondrial FAD are coupled. Our data do not support the hypothesis of a preferential utilization of astrocyte-released lactate by neurons during network activation in slices--instead, we show that during such activity glucose is an effective energy substrate for both neurons and astrocytes.

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Authors
Ivanov, A. I., Malkov, A. E., Waseem, T., Mukhtarov, M., Buldakova, S., Gubkina, O., Zilberter, M., & Zilberter, Y.
Affiliations
  • Inserm (FR)
  • INSERM UMR1106, Institut de Neurosciences des Systèmes, Aix-Marseille University, Marseille, France
Corresponding author
Zilberter, Yuri
Venue
Journal of Cerebral Blood Flow & Metabolism
Published
2013-12-11
Volume
34
Issue
3
Pages
397-407
ISSN
  • 0271-678X (ISSN-L)
  • 1559-7016
OpenAlex
W1999435933
Cited by
113
References
40
Citations by year
2026: 4 · 2025: 8 · 2024: 10 · 2023: 7 · 2022: 4 · 2021: 15 · 2020: 6 · 2019: 4 · 2018: 10 · 2017: 16 · 2016: 11 · 2015: 10 · 2014: 8
FWCI
4.74
Type
journal article
Language
en
Open access
Locations
  • Journal of Cerebral Blood Flow & Metabolism (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • zvestiya of the National Academy of Sciences of Belarus (National Academy of Sciences of Belarus) (submittedVersion)
Funders
  • Alzheimer's Association (NESAD-12-242486)
  • Agence Nationale de la Recherche (ANR-10-BLAN-1443)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
glycolysis, oxidative phosphorylation, neuronal energy metabolism, astrocytes, hippocampal slices, network activity, glucose utilization, lactate, pyruvate, NAD(P)H, synaptic stimulation, astrocyte-neuron lactate shuttle
MeSH terms
Adenosine Triphosphate, Animals, Astrocytes, Calcium, Electric Stimulation, Flavin-Adenine Dinucleotide, Female, Glucose, Glycolysis, Hippocampus, Male, NADP, Nerve Net, Neurons, Oxidative Phosphorylation, Oxygen Consumption, Lactic Acid, Tissue Culture Techniques, Mice, Synaptic Potentials

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