Kyowa Hakko Kogyo Co., Ltd.

Kyowa Hakko Bio Co., Ltd.

Ryusuke Nakagiri

Takeshi Ikeda

Yasushi Sakai

Ayako Kamimura

Toshikazu Kamiya

Shun Kayahashi

Yukihiro Hishida

Erika Hashizume

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.

Methods and compositions for enhancement of ability to concentrate

A liver function protecting or improving agent which comprises a compound represented by the formula (I) {in the formula (I), R, R, R, R, R, R, R, Rand Rmay be the same or different, and represent hydrogen, halogen, hydroxy, alkoxy or alkyl; and Rrepresents the formula (II) [in the formula (II), Rand Rmay be the same or different, and represent hydrogen or halogen, or Rand Rtogether represent a binding] or the formula (III) [in the formula (III), Rrepresents hydrogen, halogen, hydroxy, alkoxy, cyano or alkyl, Rand Rmay be the same or different, and represent hydrogen or halogen, or Rand Rtogether represent a binding]} or a glycoside thereof or a pharmaceutically acceptable salt thereof.

Liver function protecting or ameliorating agent

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.

Preventives or remedies for arthritis

Growing community of inventors

Tokyo, Japan

Ryusuke Nakagiri