Researchers are reporting that they've used two different types of noninvasive probes to uncover the roles played by different types of cells in the immune system.
One of the probes, known as an FDG, is commonly used in PET scans to track how cells break down glucose (sugar), while the so-called FAC probe -- developed recently at the University of California, Los Angeles -- measures the activity of specific biochemical pathways.... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1100