Verification of the formulation and efficacy of Danggui Buxue Tang (a decoction of Radix Astragali and Radix Angelicae Sinensis): An exemplifying systematic approach to revealing the complexity of Chinese herbal medicine formulae

被引:53
作者
Gao Q. [1 ]
Li J. [1 ]
Cheung J.K.H. [1 ]
Duan J. [2 ]
Ding A. [2 ]
Cheung A.W.H. [1 ]
Zhao K. [3 ]
Li W.Z. [1 ]
Dong T.T. [1 ]
Tsim K.W.K. [1 ]
机构
[1] Department of Biology, Center for Chinese Medicine, Hong Kong University of Science and Technology, Hong Kong SAR, Clear Water Bay Road
[2] Nanjing University of Traditional Chinese Medicine, Xianlin University Town, Nanjing 210046
[3] Beijing Friendship Hospital, Capital Medical University, Beijing 100050
关键词
Ferulic Acid; Total Flavonoid; Total Saponin; Radix Astragalus; Herbal Medicine Product;
D O I
10.1186/1749-8546-2-12
中图分类号
学科分类号
摘要
This article exemplifies a systematic approach to revealing the complexity of Chinese herbal medicine formulae through three levels of scientific research: standardization of herbs, verification of ancient formulae and mechanism studies. We use Danggui Buxue Tang (DBT) as an example for this approach. Among thousands of traditional Chinese medicine herbal formulae, almost all of which consist of multiple herbs, DBT is one of the simplest. Containing only two herbs, namely Radix Astragali (RA) and Radix Angelicae Sinensis (RAS), DBT is traditionally used to treat ailments in women. The weight ratio of RA to RAS in DBT was prescribed to be 5:1 as early as in 1247 AD. In addition to advanced chemical analysis of herbal constituents, DNA genotyping techniques have been developed for reliable standardization of RA and RAS. Chemical evaluation shows that main active constituents in DBT, including astragaloside IV, calycosin, formononetin and ferulic acid, were most abundant after extraction at the RA to RAS ratio of 5:1, whereas other tested RA to RAS ratios only gave sub-optimal levels of the active constituents. Biological evaluation indicates that bioactivities of DBT, e.g. immuno-modulatory, oesteotropic and estrogenic effects are also best exerted at the RA to RAS ratio of 5:1. Correlation analysis demonstrates statistically significant relationship between the tested chemical constituents and tested bioactivities. Up- and down-regulation of expression of some genes as potential biomarkers has been detected by using gene chip technology. This systematic approach on the basis of herbal standardization, chemical and biological verification and mechanism studies, as exemplified in this article, will be useful to reveal the complexity of not only DBT but also other Chinese medicine herbal formulae. © 2007 Gao et al; licensee BioMed Central Ltd.
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