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      Applications of HPLC/MS in the analysis of traditional Chinese medicines

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          Abstract

          In China, traditional Chinese medicines (TCMs) have been used in clinical applications for thousands of years. The successful hyphenation of high-Performance liquid chromatography (HPLC) and mass spectrometry (MS) has been applied widely in TCMs and biological samples analysis. Undoubtedly, HPLC/MS technique has facilitated the understanding of the treatment mechanism of TCMs. We reviewed more than 350 published papers within the last 5 years on HPLC/MS in the analysis of TCMs. The present review focused on the applications of HPLC/MS in the component analysis, metabolites analysis, and pharmacokinetics of TCMs etc. 50% of the literature is related to the component analysis of TCMs, which show that this field is the most populär type of research. In the metabolites analysis, HPLC coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry has been demonstrated to be the powerful tool for the characterization of structural features and fragmentation behavior patterns. This paper presented a brief overview of the applications of HPLC/MS in the analysis of TCMs. HPLC/MS in the fingerprint analysis is reviewed elsewhere.

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          Chemical analysis of the Chinese herbal medicine Gan-Cao (licorice).

          Qingying Zhang, Min Ye (2009)
          Gan-Cao, or licorice, is a popular Chinese herbal medicine derived from the dried roots and rhizomes of Glycyrrhiza uralensis, G. glabra, and G. inflata. The main bioactive constituents of licorice are triterpene saponins and various types of flavonoids. The contents of these compounds may vary in different licorice batches and thus affect the therapeutic effects. In order to ensure its efficacy and safety, sensitive and accurate methods for the qualitative and quantitative analyses of saponins and flavonoids are of significance for the comprehensive quality control of licorice. This review describes the progress in chemical analysis of licorice and its preparations since 2000. Newly established methods are summarized, including spectroscopy, thin-layer chromatography, gas chromatography, high-performance liquid chromatography (HPLC), liquid chromatography/mass spectrometry (LC/MS), capillary electrophoresis, high-speed counter-current chromatography (HSCCC), electrochemistry, and immunoassay. The sensitivity, selectivity and powerful separation capability of HPLC and CE allows the simultaneous detection of multiple compounds in licorice. LC/MS provides characteristic fragmentations for the rapid structural identification of licorice saponins and flavonoids. The combination of HPLC and LC/MS is currently the most powerful technique for the quality control of licorice.
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            Metabolomics: towards understanding traditional Chinese medicine.

            Xijun Wang, Ping Wang, Aihua Zhang … (2010)
            Metabolomics represent a global understanding of metabolite complement of integrated living systems and dynamic responses to the changes of both endogenous and exogenous factors and has many potential applications and advantages for the research of complex systems. As a systemic approach, metabolomics adopts a "top-down" strategy to reflect the function of organisms from the end products of the metabolic network and to understand metabolic changes of a complete system caused by interventions in a holistic context. This property agrees with the holistic thinking of Traditional Chinese Medicine (TCM), a complex medical science, suggesting that metabolomics has the potential to impact our understanding of the theory behind the evidence-based Chinese medicine. Consequently, the development of robust metabolomic platforms will greatly facilitate, for example, the understanding of the action mechanisms of TCM formulae and the analysis of Chinese herbal (CHM) and mineral medicine, acupuncture, and Chinese medicine syndromes. This review summarizes some of the applications of metabolomics in special TCM issues with an emphasis on metabolic biomarker discovery. © Georg Thieme Verlag KG Stuttgart · New York.
            Article 0 comments Cited 71 times – based on 0 reviews     Review now
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              Advancement in analysis of Salviae miltiorrhizae Radix et Rhizoma (Danshen).

              Yong-Guo Li, Long Song, Mei Liu … (2009)
              This review summarizes the recent advances in the chemical analysis of Danshen and its finished products, including the introduction of the identified bioactive components, analytical methods for quantitative determination of target analytes and fingerprinting authentication, quality criteria of Danshen crude herb and its preparations, as well as the pharmacokinetic and pharmacodynamic studies on the active components of Danshen and its finished products. Danshen contains mainly two types of constituents, the hydrophilic depsides and lipophilic diterpenoidal quinones and both of them are responsible for the pharmacological activities of Danshen. In order to monitor simultaneously both types of components which have different physicochemical properties, numerous analytical methods have been reported using various chromatographic and spectrophotometric technologies. In this review, 110 papers on analysis of Danshen are discussed, various analytical methods and their chromatographic conditions are briefly described and their advantages/disadvantages are compared. For obtaining a quick, accurate and applicable analytical approach for quality evaluation and establishing a harmonized criteria of Danshen and its finished products, the authors' suggestion and opinions are given, including the reasonable selection of marker compounds with high concentration and commercial availability, a simple sample preparation procedure with high recoveries of both the hydrophilic phenols and lipophilic tanshinones, and an optimized chromatographic condition with ideal resolutions of all the target components. The chemical degradation and transformation of the predominant constituent salvianolic acid B in Danshen during processing and manufacturing are also emphasized in order to assure the quality consistency of Danshen containing products.
              Article 0 comments Cited 71 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Lang-Chong He
                Journal
                Journal ID (nlm-ta): J Pharm Anal
                Journal ID (iso-abbrev): J Pharm Anal
                Title: Journal of Pharmaceutical Analysis
                Publisher: Xi'an Jiaotong University
                ISSN (Print): 2095-1779
                ISSN (Electronic): 2214-0883
                Publication date PMC-release: 30 January 2012
                Publication date (Print): May 2011
                Publication date (Electronic): 30 January 2012
                Volume: 1
                Issue: 2
                Pages: 81-91
                Affiliations
                School of Medicine, Xi’an Jiaotong University, Xi’an 710061, China
                Author notes
                [* ]Corresponding author. helc@ 123456mail.xjtu.edu.cn
                Article
                Publisher ID: S2095-1779(11)70015-6
                DOI: 10.1016/S2095-1779(11)70015-6
                PMC ID: 5760786
                PubMed ID: 29403684
                SO-VID: 790a04fe-83c7-4a28-996e-1c60b4d26856
                Copyright © .
                License:

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).

                History
                Date received : 17 May 2011
                Date accepted : 20 May 2011
                Categories
                Subject: Review

                Keywords: traditional chinese medicines (tcms),hplc/ms,component analysis,metabolites analysis,pharmacokinetics
                Data availability:
                Keywords: traditional chinese medicines (tcms), hplc/ms, component analysis, metabolites analysis, pharmacokinetics

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