Patent ID: 7078386

Claim:
A therapeutic agent or prophylactic agent for a disease requiring enhancement of nerve growth factor production, wherein the therapeutic agent or prophylactic agent comprises as an effective ingredient at least one isolated or purified compound selected from the group consisting of 7-O-β-D-glucopyranosyloxy-8-prenyl coumarin, 7-β-D-glucopyranosyloxy-6-prenyl coumarin, 3′-O-β-D-glucopyranoyl khellactone, 4′-O-angeloyl-3′-O-[6-O-(β-D-glucopyranosyl)-β-D-glucopyranosyl]-khellactone, a compound represented by the general formula (III): wherein R 6 is a hydrogen atom, hydroxyl group, carboxyl group, an aliphatic group, an aromatic group, an aromatic-aliphatic group or a saccharide residue, and pharmacologically acceptable salts thereof and optionally in combination with a pharmaceutically acceptable carrier.