期刊
SCIENCE
卷 305, 期 5680, 页码 99-103出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1096485
关键词
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资金
- NIBIB NIH HHS [P41-EB001976-16] Funding Source: Medline
We have found that two-photon fluorescence imaging of nicotinamide adenine dinucleotide ( NADH) provides the sensitivity and spatial three-dimensional resolution to resolve metabolic signatures in processes of astrocytes and neurons deep in highly scattering brain tissue slices. This functional imaging reveals spatiotemporal partitioning of glycolytic and oxidative metabolism between astrocytes and neurons during focal neural activity that establishes a unifying hypothesis for neurometabolic coupling in which early oxidative metabolism in neurons is eventually sustained by late activation of the astrocyte-neuron lactate shuttle. Our model integrates existing views of brain energy metabolism and is in accord with known macroscopic physiological changes in vivo.
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