The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Brain metabolism dictates the polarity of astrocyte control over arterioles
Open accessAbstract
Calcium signalling in astrocytes couples changes in neural activity to alterations in cerebral blood flow by eliciting vasoconstriction or vasodilation of arterioles. However, the mechanism for how these opposite astrocyte influences provide appropriate changes in vessel tone within an environment that has dynamic metabolic requirements remains unclear. Here we show that the ability of astrocytes to induce vasodilations over vasoconstrictions relies on the metabolic state of the rat brain tissue. When oxygen availability is lowered and astrocyte calcium concentration is elevated, astrocyte glycolysis and lactate release are maximized. External lactate attenuates transporter-mediated uptake from the extracellular space of prostaglandin E2, leading to accumulation and subsequent vasodilation. In conditions of low oxygen concentration extracellular adenosine also increases, which blocks astrocyte-mediated constriction, facilitating dilation. These data reveal the role of metabolic substrates in regulating brain blood flow and provide a mechanism for differential astrocyte control over cerebrovascular diameter during different states of brain activation.
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Cites
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Nonoxidative Glucose Consumption During Focal Physiologic Neural Activity
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Sulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo
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Neural activity triggers neuronal oxidative metabolism followed by astrocytic glycolysis
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Astrocyte glycogen and brain energy metabolism
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Signaling at the Gliovascular Interface
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Glial and neuronal control of brain blood flow
Attwell, D., Buchan, A. M., Charpak, S., Lauritzen, M., MacVicar, B. A., & Newman, E. A. (2010) · Nature · doi:10.1038/nature09613 · Cited by 2,511
Self-citationThe Neurovascular Unit Coming of Age: A Journey through Neurovascular Coupling in Health and Disease
Iadecola, C. (2017) · Neuron · doi:10.1016/j.neuron.2017.07.030 · Cited by 2,480
Brain energy metabolism: focus on Astrocyte-neuron metabolic cooperation
Bélanger, M., Allaman, I., & Magistretti, P. J. (2011) · Cell Metabolism · doi:10.1016/j.cmet.2011.08.016 · Cited by 2,313
Synaptic Energy Use and Supply
Harris, J. J., Jolivet, R., & Attwell, D. (2012) · Neuron · doi:10.1016/j.neuron.2012.08.019 · Cited by 1,747
Astrocyte-Neuron Lactate Transport Is Required for Long-Term Memory Formation
Suzuki, A., Stern, S. A., Bozdagi, O., Huntley, G. W., Walker, R. H., Magistretti, P. J., & Alberini, C. M. (2011) · Cell · doi:10.1016/j.cell.2011.02.018 · Cited by 1,711
Metadata
- Authors
- Gordon, G. R. J., Choi, H. B., Rungta, R. L., Ellis-Davies, G. C. R., & MacVicar, B. A.
- Venue
- Nature
- Published
- 2008-10-29
- Volume
- 456
- Issue
- 7223
- Pages
- 745-749
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1971285535
- Cited by
- 744
- References
- 8
- FWCI
- 27.53
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
