Abstract: A composition for enhancement of ability to concentrate and method of improving ability to concentrate using alanylglutamine or a salt of alanylglutamine as an active ingredient.

Abstract: A composition for enhancement of ability to concentrate and method of improving ability to concentrate using alanylglutamine or a salt of alanylglutamine as an active ingredient.

Abstract: A vision performance enhancing composition and method to enhance vision performance using alanylgiutarnine or a salt of alanylglutamine as an active ingredient.

Abstract: A liver function protecting or improving agent which comprises a compound represented by the formula (I) {in the formula (I), R1, R2, R3, R4, R5, R6, R7, R8 and R9 may be the same or different, and represent hydrogen, halogen, hydroxy, alkoxy or alkyl; and RA represents the formula (II) [in the formula (II), R10 and R11 may be the same or different, and represent hydrogen or halogen, or R10 and R11 together represent a binding] or the formula (III) [in the formula (III), R12 represents hydrogen, halogen, hydroxy, alkoxy, cyano or alkyl, R13 and R14 may be the same or different, and represent hydrogen or halogen, or R13 and R14 together represent a binding]} or a glycoside thereof or a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to pharmaceuticals, foods and drinks, food additives, animal feeds and feed additives comprising an N-acylated hydroxyproline derivative or a salt thereof, and an amino sugar or a salt thereof and/or a glycosaminoglycan or a salt thereof as active ingredients, use of an Nacylated hydroxyproline derivative or a salt thereof for the production of an arthritis preventing or treating agent, and a method for preventing or treating arthritis which comprises administering an N-acylated hydroxyproline derivative or a salt thereof, and an amino sugar or a salt thereof and/or a glycosaminoglycan or a salt thereof.

Abstract: An object of the present invention is to provide a preventing agent or a treating agent for arthritis or to provide foods and drinks, additives for foods and drinks, feeds or additives for feeds for prevention or treatment of arthritis. In order to achieve the above object, the present invention provides a preventing or treating agent for arthritis or foods and drinks, additives for foods and drinks, feeds or additives for feeds for prevention or treatment of arthritis comprising plant belonging to the genus Hydrangea or an extract of the plant and amino sugar or a salt thereof and/or glycosaminoglycan or a salt thereof as active ingredients.

Abstract: A liver function protecting or improving agent which comprises a compound represented by the formula (I) 1

Abstract: The present invention relates to pharmaceuticals, foods and drinks, food additives, animal feeds and feed additives comprising an N-acylated hydroxyproline derivative or a salt thereof, and an amino sugar or a salt thereof and/or a glycosaminoglycan or a salt thereof as active ingredients, use of an N-acylated hydroxyproline derivative or a salt thereof for the production of an arthritis preventing or treating agent, and a method for preventing or treating arthritis which comprises administering an N-acylated hydroxyproline derivative or a salt thereof, and an amino sugar or a salt thereof and/or a glycosaminoglycan or a salt thereof.

Abstract: The present invention relates to a preventive against arthritis, foods and drinks, food additives, animal feeds and feed additives comprising an N-acylated hydrxyproline derivative or a salt thereof as an active ingredient, use of an N-acylated hydroxyproline derivative or a salt thereof for the production of a preventive against arthritis and a method for preventing arthritis which comprises administering an N-acylated hydroxyproline derivative or a salt thereof.

Abstract: The present invention provides a liver function protecting or improving agent, foods and drinks or feeds having liver function protecting or improving activity, and additives for foods and drinks or feeds having liver function protecting or improving activity, which comprise a plant of the family Saxifragaceae or an extract of the plant. Also provided is a method of screening for liver function protecting or improving agents.