| abstract |
Remedies or preventives for diseases, wherein the production of growth factor should be potentiated, and foods, drinks or feeds for potentiating the production of growth factor each containing, as the active ingredient, polyphenols, derivatives thereof and/or salts thereof or compositions obtained by subjecting polyphenols, derivatives thereof and/or salts thereof to (i) mixing with metals, metal salts and/or metal ions, or (ii) oxidization. |