Evaluation preparation technology of Xiaochaihu granules using fingerprint-peak pattern matching

An approach was proposed to evaluate preparation technology by means of fingerprint-peak matching technology of high performance liquid chromatography with diode array detector （HPLC-DAD）. Similarity and hierarchical clustering analysis （HCA） were applied to identify the 15 batches of Xiaochaihu granules from different manufacturers and our laboratory, and peak pattern matching between the composite formulae and Radix Bupleuri Chinensis, which was one of the main ingredients of Xiaochaihu granules, was utilized to evaluate the preparation technology of Xiaochaihu granules via the indexes of the relative deviation of retention time （RT） and UV spectrum feature similarity of their corresponding peaks. Eleven matching peaks were found between Xiaochaihu granules and Radix Bupleuri Chinensis. However, the saikosaponin A and saikosaponin D, which are the important active components in Radix Bupleuri Chinensis, were not found in Xiaochaihu granules from any manufacturers. The peak areas of 11 characteristic peaks of Xiaochaihu granules samples formed a matrix of 11 × 15. The result of HCA showed that Xiaochaihu granules samples were divided into four kinds of category. Xiaochaihu granules samples from the same manufacturer were basically clustered of the same category. The results suggested that the saikosaponin A and saikosaponin D are prone to structural transformation under the condition of decoction and in the presence of the organic acidic components. These active components, existing in raw herb, might transform to a series of non-active secondary saikosaponin due to unfavourable preparation technology. So the conventional decoction-based preparation technology of Xiaochaihu granules might greatly affect its quality and therapeutic effectiveness. This study demonstrates that fingerprint-peak matching technology can not only be used for quality control of this composite formulae, but also provide some guidance for preparation technology of Xiaochaihu granules.

Analysis of 278 Cases of Clinical Application of Western Medicine with Traditional Chinese Medicine Syndrome Differentiation

Since the beginning of the Western Learning, modern medicine has developed rapidly in China, and the integration of Chinese and western medicine has become inevitable. Since Zhang Xichun's "Medicine in the West", using traditional Chinese medicine theory to guide the practice of western medicine, through long-term clinical diagnosis, we gradually realized the advantages of applying western medicine according to TCM syndrome differentiation. Therefore, 278 patients from the Second People's Hospital of Gansu Province from July 2015 to December 2017 were enrolled in the relevant departments of the Department of Internal Medicine. On the basis of routine treatment, TCM was obtained through inspection, inquiry, listening and smelling, palpation and pulse-taking. The syndrome type is based on the medicinal properties, menstruation and ef?cacy of more than ten kinds of western medicines, so that they can reach Chinese medicine[1]. Therefore, this paper aims to improve the accuracy of western medicine use, reduce the incidence of adverse reactions, discover the new ef?cacy of western medicine,and promote the integration of Chinese and western medicine.