AMYLOID .BETA. FIBRIL DECOMPOSING AGENT, AND THERAPEUTIC OR PREVENTIVE AGENT AND THERAPEUTIC OR PREVENTIVE FOOD COMPOSITION FOR DISEASES CAUSED BY AMYLOID .BETA. FIBRIL FORMATION

摘要

The purpose of the present invention is to provide: an amyloid ß fibril-decomposing agent which contains a naturally occurring substance as an active ingredient; a therapeutic or prophylactic agent for a disease associated with amyloid ß fibrillogenesis; and a food composition for treating or preventing a disease associated with amyloid ß fibrillogenesis. An amyloid ß fibril-decomposing agent which contains, as an active ingredient, a dried powder, a milled product and/or an extract of an earthworm; a therapeutic or prophylactic agent for a disease associated with amyloid ß fibrillogenesis; and a food composition for treating or preventing a disease associated with amyloid ß fibrillogenesis. The disease associated with amyloid ß fibrillogenesis is preferably Alzheimer's disease.