- 著者
- Hidehiko YOKOGOSHI Mikiko MOCHIZUKI Kotomi SAITOH
- 出版者
- Japan Society for Bioscience, Biotechnology, and Agrochemistry
- 雑誌
- Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)
- 巻号頁・発行日
- vol.62, no.4, pp.816-817, 1998 (Released:2005-03-30)
- 参考文献数
- 9
- 被引用文献数
- 55
Following the administration of theanine, the brain tryptophan content significantly increased or tended to increase, but the contents of serotonin and 5-hydroxyindole acetic acid (5HIAA) decreased. The use of inhibitors of serotonin metabolism enable us to speculate that theanine reduced serotonin synthesis and also increased serotonin degradation in the brain.