Administration of Theanine, a Unique Amino Acid in Tea Leaves, Changed Feeding-Relating Components in Serum and Feeding Behavior in Rats

Takashi YAMADA; Yuko NISHIMURA; Takumi SAKURAI; Takehiko TERASHIMA; Tsutomu OKUBO; Lekh Raj JUNEJA; Hidehiko YOKOGOSHI

doi:10.1271/bbb.70668

Biochemistry & Molecular Biology Notes

Administration of Theanine, a Unique Amino Acid in Tea Leaves, Changed Feeding-Relating Components in Serum and Feeding Behavior in Rats

Takashi YAMADA, Yuko NISHIMURA, Takumi SAKURAI, Takehiko TERASHIMA, Tsutomu OKUBO, Lekh Raj JUNEJA, Hidehiko YOKOGOSHI

Author information

Takashi YAMADA
COE Program in the 21st Century and Cooperation of Innovative Technology and Advanced Research in the Evolutional Area (CITY AREA), Ministry of Education, Culture, Sports, Science, and Technology of Japan, University of Shizuoka
Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
Yuko NISHIMURA
COE Program in the 21st Century and Cooperation of Innovative Technology and Advanced Research in the Evolutional Area (CITY AREA), Ministry of Education, Culture, Sports, Science, and Technology of Japan, University of Shizuoka
Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
Takumi SAKURAI
COE Program in the 21st Century and Cooperation of Innovative Technology and Advanced Research in the Evolutional Area (CITY AREA), Ministry of Education, Culture, Sports, Science, and Technology of Japan, University of Shizuoka
Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
Takehiko TERASHIMA
COE Program in the 21st Century and Cooperation of Innovative Technology and Advanced Research in the Evolutional Area (CITY AREA), Ministry of Education, Culture, Sports, Science, and Technology of Japan, University of Shizuoka
Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
School of Health Promotional Science, University of Hamamatsu
Tsutomu OKUBO
Taiyo Kagaku Co., Ltd.
Lekh Raj JUNEJA
Taiyo Kagaku Co., Ltd.
Hidehiko YOKOGOSHI
COE Program in the 21st Century and Cooperation of Innovative Technology and Advanced Research in the Evolutional Area (CITY AREA), Ministry of Education, Culture, Sports, Science, and Technology of Japan, University of Shizuoka
Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka

Keywords: theanine, amino acid, feeding, hormones

JOURNAL FREE ACCESS

2008 Volume 72 Issue 5 Pages 1352-1355

DOI https://doi.org/10.1271/bbb.70668

View "Advance Publication" version (May 7, 2008).

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Abstract

We identified an effect of γ-glutamylethylamide (theanine) on feeding in a rat study. Oral theanine suppressed the food intake of rats. The serum glucose level did not differ from the control, but the insulin concentration was reduced and the corticosterone concentration was increased by theanine. We suggest that the effect of theanine on feeding involved hormones.

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