“Evidence was obtained that the NGF enhances the oxidation of glucose to CO, and the biosynthesis of lipids, proteins and ribonucleic acid (ANGELETTI, LIUZZI, LEVI-MONTALCINI and GANDINI ATTARDI, 1964 ; ANGELETTI, LIUZZI and LEVI-MONTALCINI, 1964; ANGELETTI, GANDINI ATTARDI, TOSCHI, SALVI and LEVI-MONTALCINI, 1965).”