Nerve growth factor activity potentiating agents

摘要

Agents potentiating nerve growth factor activity are provided for treating Alzheimer's disease which contain as the active ingredient dodecatrienoic acid derivatives represented by the general formula (I): wherein X represents hydrogen, CHO, COOH, COOR (wherein R represents an ester residue or an addition salt comprising an alkali metal salt or an organic acid salt group), provided that in case where X is COOH, it is bonded to the carbon atom at the position marked with * so as to form a lactam O=C-O-.