NGF and astrocytoma (excluding glioblastoma): Hericenones are aromatic compounds extracted from the fruiting body of H. erinaceus. There are 11 hericenones (hericenones A-K) that have been identified, of which four (hericenones C (1), D (2), E (3), and H (4) (Figure 3)) have been reported to promote NGF synthesis in mouse astrocytoma cells [86,87].