| 摘要 |
Provided are novel use of an extract of Lycoris chejuensis or a compound isolated therefrom for inhibition of &bgr;-amyloid production and/or prevention, improvement and/or treatment of a neurodegenerative disease, more specifically a &bgr;-amyloid production inhibitor, and/or a composition for prevention or treatment of a neurodegenerative disease containing one or more kinds selected from the group consisting of an extract of Lycoris chejuensis, and/or dihydrolycoricidine, 2-methoxypancracine, lycoricidine, and/or lycoricidinol, as an active ingredient; a method for inhibiting &bgr;-amyloid production, and/or preventing and/or treating a neurodegenerative disease using the same; and, a method for preparing the same.
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