Zhongzhen Zhao

..This review clarifies the concept and rationalizes the formation of daodi medicinal material...

..cablin. The developed method was found to be convenient and facile in particular to tackle the complicated matrix problems always encountered in the herbs which contain high level of essential oils...

..Furthermore, it is proposed that an authority on the authentication of CMM be established, as a physical institution and/or as an electronic database...

..This review clarifies the role of macroscopic features in the quality assessment of CMM...

..The objective of this paper is to review the literature covering the current situation and problems of CMM processing as well as recent progress in research in this area. A summary of the most urgent work needed is proposed...

..The present study investigates the differences in chemistry between raw and processed Radix Polygoni Multiflori...

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..The current situation in the Hong Kong market and some suggestions for alleviating the problem are also discussed...

..0370.006 microg/g). Therefore, the root portion of Herba Asari was recommended for prescription as a decoction instead of grinding it into powder for oral administration...

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..Finally, the pharmacologically active marker compounds isoimperatorin, notopterol and bergapten in this herb were quantitatively determined using a validated reverse-phase HPLC method...

..These differences could be used to authenticate CMM dregs...

..The results suggest that the mechanism of antitumor activity of O. diffusa may not be attributed to the antiproliferative and antiangiogenic effects...

..This method is rapid, accurate, and inexpensive...

..An ethnobotanical survey was conducted to collect information on the use of medicinal plants by the Hakka living in Guangdong...

..cordata is critical to assess and represent its overall quality...

..Significant variation in the compositions of intact glucosinolates was identified in the cruciferous herbs. This method was applied in the differentiation and quality control of two pairs of easily confused herbs...

..Polysaccharides comprised the major constituents in RA and HQ. All polysaccharides extract (PE) of the three herbs showed similar levels of immunological effect in both immunological assays...

..The developed fingerprint can be successfully applied to distinguish between fresh and dry herbs, as well as determining differentiation among different medicinal portions...

..Experimental results indicated that the direct MALDI-TOFMS analysis allowed rapid screening of the alkaloid components in Strychnos nux-vomica seeds...

..In conclusion, it is important to use the above three compounds as chemical markers for quality evaluation and chemical authentication of Herba Oldenlandiae and its substitutes...

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..The results demonstrated that these methods are reliable and facile techniques for rapid analysis of carotenoids for crude drug and plant-derived food supplements...

..Current evidence is insufficient to evaluate the efficacy and safety of various HMs. Further studies with improved trial design and reporting, with assessment on cost-effectiveness, quality of life, and qualitative data are warranted...

..The dissolution profiles indicate that changing the ratio of the binders altered the patterns of dissolution of the API; thus, this ration may be used to control the release of API from the pills...

..To make a comparative study on wild and cultivated Astragali Radix in Wuchuan, Neimenggu where is one of the geo-authentic producing areas of Astragalus membranaceus var. mongholicus...

..The rapid collection of information from the direct analysis on plant tissues could be valuable for supporting the discovery of new compounds and for the quality control of medicinal herbs...

..To make microscopic identification research of three Echinacea-species roots recorded in the United States Pharmacopeia...

..Our results suggest that SCH acts by affecting the normal formation and functioning of the Pgp-substrate complexes...

..The HPLC quantitation methods of the three marker compounds were validated and the measurement uncertainty, which is important for setting the proposed content limit of the marker compounds in herbal medicine, were further evaluated...

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..07 +/- 2.73 (mean +/- SD, n = 10). The chemical assay of DG using total ferulic acid content would be a better choice to assess the herbal quality and was recommended...

..The results demonstrated that it was feasible to use the present microscopic characters for the authentication of the above three animal T/PCMM...

..1%, and 95.9% with variation coefficient of 6.0%, 4.3%, 3.7%, and 4.2%, respectively. The established method was successfully applied to the quality assessment of seven batches of RSM samples collected from different regions of China...

..3 to 14.6%. Analysis of the glucosinolates provided scientific evidence enabling differentiation of three pairs of easily confused plants...

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..The method was proven to be quick, handy, simple, and convenient...

..The binding mode of these alkaloids was further confirmed by UV spectroscopic titration experiments. All the compounds bind to double-stranded DNA most probably via an intercalating mode...

..The analytical method is suitable for quality control of Herba Oldenlandiae and useful in differentiation from its confusable species. The method has been fully validated with satisfactory linearity, accuracy, precision and stability...

..Based on geo-authentic medicinal material and bioassay or biopotency detection, a new pattern of quality control for Chinese medicine could be built and applied...

..The overall analytical procedure is rapid and reproducible which is considered suitable for quantitative analysis of large number of samples...

..Thus, the current finding of the presence of toxic/tumorigenic PAs in S. scandens challenges the safety of using this TCM herb and its proprietary products...

..Specially, the wall of endoderm cells of O. diffusa and O. tenelliflora emit autofluorescence, while similar tissue of O. corymbosa does not. Hence, fluorescence microscopy can be helpful in the identification of CMM...

..The amount of ligustilide in CX samples collected from different cultivation areas was obviously different. However, a relatively higher content of ligustilide was generally found in the CX collected from its main cultivated areas...

..CONCLUSION: Compounds 1, 2 and 5 were separated from H. cordata for the first time...

..The structures including the relative stereochemistry of new compounds 1 and 2 were elucidated on the basis of detailed spectroscopic data analysis...

..To optimize the extraction procedure of essential oil from H. cordata using the SFE-CO2 and analyze the chemical composition of the essential oil...

..To study the aqueous constituents of Houttuynia cordata...

..This study introduces the first GC-MS method for the quantitative analysis of polyacetylenes in herbs of the Panax genus...

..To investigate the protective effect of the roots of F. hirta against the cocaine-induced hepatotoxicity and it's active components...

..The establishment of the methodology for the evaluation of measurement uncertainty is important to the studies of Chinese materia medica standards...