The determination of reduced nicotinamide-adenine dinucleotide and metabolic intermediates in picomole amounts with bacterial luciferase

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Abstract
Methods that use bacterial luciferase for the assay of NADH in the range from 1 pmol to 1 nmol are described. Optimal conditions for the assay of glycolytic intermediates, tricarboxylic acid-cycle intermediates and related amino acids from milligram amounts of tissue are presented. The whole spectrum of these intermediates can be determined on about 10 mg of liver tissue. The methods are simple, are suitable for routine use, and the instrumentation is inexpensive. The concentrations of glycolytic intermediates in rat livers were determined by conventional spectrometric methods and with luciferase, and the results found to be in good agreement.