10.1248/cpb.39.210
The research investigates the metabolism of 13C-labeled compounds in living organisms using 13C-NMR spectroscopy. The study focuses on the metabolism of [1-13C]-D-glucose to [1,1'-13C]-D-trehalose and [3-13C]-L-alanine to [2-13C]-L-glutamic acid in the living body of Gryllodes sigillatus. It was found that [1-13C]-D-glucose was predominantly metabolized to [1,1'-13C]-D-trehalose, while [3-13C]-D-alanine was not metabolized. The metabolic rate of [1-13C]-D-glucose was significantly altered by prior injection of boric acid, which accelerated the transformation process. The study demonstrates the potential of in vivo 13C-NMR spectroscopy for monitoring metabolic pathways and the effects of drugs on metabolism in living organisms.