Abstract
Traditional Japanese herbal, or Kampo medicine was developed and modified from Chinese herbal medicine. After the Japanese government approved Kampo for clinical use, much attention has been paid to establishing scientific evidence for the effectiveness of these medicines. Recent progress has been made in elucidating the mechanisms of action of some types of Kampo medicine, including rikkunshito (RKT), daikenchuto, and yokukansan. In this review, we focused on identifying the target molecules and the active ingredients of RKT.
Thus far, many target molecules have been implicated in the mechanism of action of Kampo medicines, such as ion channels, enzymes, and receptors. In particular, G protein-coupled receptors are attractive candidates for explaining herbal medicine activity. This is particularly true of RKT, which is composed of 8 independent, crude drug extracts. Recent reports have shown that RKT elicits its effects through dual action to the G protein-coupled receptors: inhibition of serotonergic 5-HT2C and 5-HT2B receptors and activation of ghrelin receptors via specific ingredients of RKT.
In addition, we suggest that the identification of the effective ingredients from Kampo medicines could contribute to the discovery and development of new drugs by means of modern high-throughput drug screening technology.
Keywords: Rikkunshito, GPCR, Kampo medicine, herbal medicine, ghrelin, daikenchuto, yokukansan, ingredients, drugs, high-throughput drug screening technology.
Current Pharmaceutical Design
Title:A Review of Traditional Japanese Medicines and their Potential Mechanism of Action
Volume: 18 Issue: 31
Author(s): Yasuhito Uezono, Kanako Miyano, Yuka Sudo, Masami Suzuki, Seiji Shiraishi and Kiyoshi Terawaki
Affiliation:
Keywords: Rikkunshito, GPCR, Kampo medicine, herbal medicine, ghrelin, daikenchuto, yokukansan, ingredients, drugs, high-throughput drug screening technology.
Abstract: Traditional Japanese herbal, or Kampo medicine was developed and modified from Chinese herbal medicine. After the Japanese government approved Kampo for clinical use, much attention has been paid to establishing scientific evidence for the effectiveness of these medicines. Recent progress has been made in elucidating the mechanisms of action of some types of Kampo medicine, including rikkunshito (RKT), daikenchuto, and yokukansan. In this review, we focused on identifying the target molecules and the active ingredients of RKT.
Thus far, many target molecules have been implicated in the mechanism of action of Kampo medicines, such as ion channels, enzymes, and receptors. In particular, G protein-coupled receptors are attractive candidates for explaining herbal medicine activity. This is particularly true of RKT, which is composed of 8 independent, crude drug extracts. Recent reports have shown that RKT elicits its effects through dual action to the G protein-coupled receptors: inhibition of serotonergic 5-HT2C and 5-HT2B receptors and activation of ghrelin receptors via specific ingredients of RKT.
In addition, we suggest that the identification of the effective ingredients from Kampo medicines could contribute to the discovery and development of new drugs by means of modern high-throughput drug screening technology.
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Cite this article as:
Uezono Yasuhito, Miyano Kanako, Sudo Yuka, Suzuki Masami, Shiraishi Seiji and Terawaki Kiyoshi, A Review of Traditional Japanese Medicines and their Potential Mechanism of Action, Current Pharmaceutical Design 2012; 18 (31) . https://dx.doi.org/10.2174/138161212803216924
DOI https://dx.doi.org/10.2174/138161212803216924 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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