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Lactate-Supported Synaptic Function in the Rat Hippocampal Slice Preparation
Abstract
The present study was undertaken to examine the possibility that cerebral energy metabolism can be fueled by lactate. As a sole energy substrate, lactate supported normal synaptic function in rat hippocampal slices for hours without any sign of deterioration. Slices that were synaptically silent as a result of glucose depletion could be reactivated with lactate to show normal synaptic function. When slices were exposed to the glycolytic inhibitor iodoacetic acid, lactate-supported synaptic function was unaffected, whereas that supported by glucose was completely abolished. This indicated that lactate was metabolized directly via pyruvate to enter the tricarboxylic acid cycle. Thus, under conditions that lead to lactate accumulation (cerebral ischemia) this "end product" may be a useful alternative as a substrate for energy metabolism.
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Cited by
Pellerin, L., & Magistretti, P. J. (1994) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.91.22.10625 · Cited by 2,927
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
Verkhratsky, A., & Nedergaard, M. (2018) · Physiological Reviews · doi:10.1152/physrev.00042.2016 · Cited by 1,678
Lactate metabolism in human health and disease
Li, X., Yang, Y., Zhang, B., Lin, X., Fu, X., An, Y., Zou, Y., Wang, J.-X., Wang, Z., & Yu, T. (2022) · Signal Transduction and Targeted Therapy · doi:10.1038/s41392-022-01151-3 · Cited by 1,454
Lactate in the brain: from metabolic end-product to signalling molecule
Magistretti, P. J., & Allaman, I. (2018) · Nature Reviews Neuroscience · doi:10.1038/nrn.2018.19 · Cited by 1,298
Metadata
- Authors
- Schurr, A., West, C. A., & Rigor, B. M.
- Venue
- Science
- Published
- 1988-06-03
- Volume
- 240
- Issue
- 4857
- Pages
- 1326-1328
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2034004233
- Cited by
- 551
- References
- 0
- FWCI
- 2.36
- Type
- journal article
- Language
- en
- Open access
- closed
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