The present work describes a quantitative analysis of lactate 13C-labeling pattern following the metabolism of hyperpolarized [2H7,U-13C6]-D-glucose. This lactate production results from 12 biochemical steps including glucose transport, 10 enzymatic steps of glycolysis, and LDH mediated pyruvate-to-lactate conversion. The 3-compartment model description was found a good compromise to interpret the hyperpolarized metabolic curves. This demonstrates the potential of hyperpolarized [2H7, U-13C6]-D-glucose as a new biochemical probe for brain energy metabolism.
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