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AssigneesNational Institute of Advanced Industrial Science and Technology, Kaul-Tech Co., Ltd.
InventorsRenu Wadhwa, Sunil Kaul
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It is an object of the present invention to provide a method for preparing a water extract of ashwagandha, which comprises increasing the amounts of withanone and withaferin A contained as active ingredients in the water extract of ashwagandha leaves. In addition, it is another object of the present invention to more economically and simply provide a pharmaceutical composition comprising ashwagandha leaves. The present invention relates to a method for preparing a water extract of ashwagandha leaves, which comprises extracting ashwagandha leaves with water in the presence of cyclodextrin, and a method for enhancing the anticancer activity of the water extract of ashwagandha leaves. The present invention also relates to a pharmaceutical composition for treating or preventing cancer, comprising the water extract of ashwagandha leaves. The present invention further relates to a pharmaceutical composition comprising dry powders of ashwagandha leaves and cyclodextrin.
A method for treating or preventing cancer, which comprises extracting ashwagandha leaves with water in the presence of β-cyclodextrin to obtain a water extract of ashwagandha leaves and administrating the obtained water extract of ashwagandha leaves to a subject in need thereof.
A method for treating or preventing cancer, which comprises administrating a composition obtained by mixing a water extract of ashwagandha leaves with γ-cyclodextrin or administrating dry powders of ashwagandha leaves and γ-cyclodextrin simultaneously, separately or sequentially to a subject in need thereof.
Dependencies are inferred from the claim text.