Joseph Katz, "The use of Glucose Carbon-14 in the Study of the Pathways of Glucose Metabolism in Mammalian Tissues".

Here is the use of a radioactive isotope in metabolomics’ by Joseph Katz.  Otto Warburg’s decades earlier research  was foundational metabolism study.  Carbon-14, here used by Joseph Katz was the next generation of metabolomics.

Radiology is an area of Medicine that has used Glucose-Carbon-14 in studies of Neurology.  The ABOVE photograph shows blood vessels in the Human brain.