Patent ID: 7268160

Claim:
A method for enhancing nerve growth factor production, comprising administering to an animal at least one compound selected from the group consisting of the compound represented by the general formula (1): wherein each of R 1 , R 2 , R 3 , R 4 and R 5 , which may be identical or different, is hydrogen atom, hydroxyl group, an alkoxy group or an acyloxy group; X is a group represented by the following general formula (2): wherein Z is a substituted or unsubstituted aliphatic group, or aromatic group or aromatic-aliphatic group; Y is a hydrogen atom or hydroxyl group; and each of m and n is 0 or 1; a group represented by the following general formula (3): wherein Z′ is hydrogen atom, a substituted or unsubstituted aliphatic group, aromatic group or aromatic-aliphatic group; Y′ is a hydrogen atom or hydroxyl group; and each of m and n is 0 or 1; or a group represented by the following general formula (4): wherein each of R 6 and R 7 , which may be identical or different, is a hydrogen atom, a sugar residue, or a substituted or unsubstituted aliphatic group, aromatic group or aromatic-aliphatic group; excluding a case where R 1 , R 4 and R 5 are all hydrogen atoms, R 2 and R 3 are all hydroxyl groups, and X is represented by said general formula (2) in said general formula (1), wherein n is 1, m is 0, and Z and Y are hydrogen atom in said general formula (2), and pharmacologically acceptable salts thereof.