Glioblastoma cells have been marked to metabolize galactosethrough the Leloir pathway for ATP production.62 Recently, it has been demonstrated that ribose acts asa fuel for the growth of pancreatic cancer cells.63 Altogether, these data imply the possibility of differentialregulation of glycolytic and oxidative phosphorylation pathways byunilateral and bilateral Rb patients. This evidence concerns the gene RB1 and pancreatic neoplasm.