COMPOSITION FOR PREVENTING OR TREATING DEMENTIA COMPRISING EXTRACTS OF MONSONIA SPECIES

摘要

The present invention relates to a pharmaceutical composition for preventing and/or treating dementia comprising extracts of Monsonia sp.; a food composition for preventing and/or improving dementia comprising extracts of Monsonia sp.; and a method of preparing an extract of Monsonia sp. with excellent inhibitory effect on the formation of ²-amyloid. The plant extract can inhibit the formation of ²-amyloid which has been known as a factor causing the dementia, especially Alzheimer's disease, thereby being used for preventing, improving and/or treating the dementia.