abstract |
A composition for preventing or treating dementia comprising a hydroxycinnamic acid derivative of formula (I), decursinol, a pharmaceutically acceptable salt thereof or an extract of a plant of genus Angelicae containing same, wherein, R<SUP>1 </SUP>is H or CH<SUB>3</SUB>, R<SUP>2 </SUP>is -CH-CHCOOH or formula (a). |