Effects of Theanine, a Unique Amino Acid in Tea Leaves, on Memory in a Rat Behavioral Test

Takashi YAMADA; Takehiko TERASHIMA; Hiroyuki HONMA; Shinichi NAGATA; Tsutomu OKUBO; Lekh Raj JUNEJA; Hidehiko YOKOGOSHI

doi:10.1271/bbb.70669

This article has now been updated. Please use the final version.

Effects of Theanine, a Unique Amino Acid in Tea Leaves, on Memory in a Rat Behavioral Test

Takashi YAMADA, Takehiko TERASHIMA, Hiroyuki HONMA, Shinichi NAGATA, 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
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
Hiroyuki HONMA
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
Shinichi NAGATA
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
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, behavior, memory, novel object test

JOURNAL FREE ACCESS Advance online publication

Article ID: 70669

DOI https://doi.org/10.1271/bbb.70669

The final version of this article is now available: Vol. 72 (2008) , No. 5 p.1356

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Abstract

We identified an effect of theanine on memory functions in a novel object test. Rats were fed theanine for 3 weeks ad libitum, and then they performed the object test. The theanine-fed group performed search behavior for the novel object in the test session. The results suggest that theanine-fed rats showed improved recognition, and that theanine affected learning and memory.

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