Screening of immune cell activators from Astragali Radix using a comprehensive two-dimensional NK-92MI cell membrane chromatography/C18 column/time-of-flight mass spectrometry system / 药物分析学报

Astragali Radix(AR)is a clinically used herbal medicine with multiple immunomodulatory activities that can strengthen the activity and cytotoxicity of natural killer(NK)cells.However,owing to the complexity of its composition,the specific active ingredients in AR that act on NK cells are not clear yet.Cell membrane chromatography(CMC)is mainly used to screen the active ingredients in a complex system of herbal medicines.In this study,a new comprehensive two-dimensional(2D)NK-92MI CMC/C18 column/time-of-flight mass spectrometry(TOFMS)system was established to screen for potential NK cell acti-vators.To obtain a higher column efficiency,3-mercaptopropyltrimethoxysilane-modified silica was synthesized to prepare the NK-92MI CMC column.In total,nine components in AR were screened from this system,which could be washed out from the NK-92MI/CMC column after 10 min,and they showed good affinity for NK-92MI/CMC column.Two representative active compounds of AR,isoastragaloside Ⅰ and astragaloside Ⅳ,promoted the killing effect of NK cells on K562 cells in a dose-dependent manner.It can thus suggest that isoastragaloside Ⅰ and astragaloside Ⅳ are the main immunomodulatory compo-nents of AR.This comprehensive 2D NK-92MI CMC analytical system is a practical method for screening immune cell activators from other herbal medicines with immunomodulatory effects.

Study on the trial and pilot process optimization of insomnia granules / 国际中医中药杂志

Objective To optimize a method for extracting traditional Chinese medicine composition with insomnia,and to prepare the insomnia granules for quality control.Methods The optimal extraction process was screened by orthogonal test using high-performance liquid chromatography with geniposide as the evaluation index.The particle size,bulk density,angle of repose,moisture,solubility,hygroscopicity and loading difference of the insomnia granule were evaluated,and the difference between the trial test and the pilot test were analyzed to comprehensively monitor the quality of the insomnia granule.Results The best extraction process was to add 10 times of water and cooked it three times for 1.5 hours each time.The average yield rate of dry extract of the pilot test and trial test was 22.10％,15.52％,and the average yield of powder was 84.96％ and 93.12％,respectively.The conversion rate from the pilot test to the trial test is 76.97％.Both the trial test and the pilot test particles met the quality requirements of the 2015 edition of the pharmacopoeia.Conclusions The preparation method of the insomnia granules is simple and the quality is uniform.The results of the pilot scale showed that the conversion rate is high,the quality is controllable,and the technical feasibility of industrial production is obtained.

Advances in the mechanism of Traditional Chinese Medicine by network pharma-cology method / 药学实践杂志

Network pharmacology is the basis of system biology,systematically expounded the interaction of the princi-ple and regulation between body and the drug,representing the idea of the modern biomedical philosophy and researching mod-el.It could be more easily understand the mechanism of action of Traditional Chinese Medicine treatment of diseases by the net-work pharmacology-related technical means.Network pharmacology is widely used in Traditional Chinese Medicine research in the current.The application and development of network pharmacology in the field of Traditional Chinese Medicine research in recent years were introduced in this paper from the aspects of Traditional Chinese Medicine concept,network pharmacology and network pharmacology application.

Advances on pharmacokinetics of traditional Chinese medicine based on animal model under diseased states / 药学实践杂志

In recent years ,pharmacokinetics of traditional Chinese medicine has become essential for the modernization of traditional Chinese medicine .Pharmacokinetics is an important means for connecting traditional Chinese medicine with west-ern medicine .Medications exert efficacy only when there is sufficient concentration at the target sites .The drug concentration is not only related to the dosage ,but is also closely correlated to the metabolic processes in human body .Most pharmacokinetic studies of traditional Chinese medicine are based on healthy animals ,which ignore significant changes of pharmacokinetic pa-rameters in the diseased state .In this paper ,the comparative pharmacokinetics of the traditional Chinese medicine based on ani-mal models in their diseased states was reviewed .Developmental trends of pharmacokinetics of traditional Chinese medicine with different animal models were also discussed .

Liquid chromatography coupled with time-of-flight and ion trap mass spectrometry for qualitative analysis of herbal medicines / 药物分析学报

With the expansion of herbal medicine (HM) market, the issue on how to apply up-to-date analytical tools on qualitative analysis of HMs to assure their quality, safety and efficacy has been arousing great attention. Due to its inherent characteristics of accurate mass measurements and multiple stages analysis, the integrated strategy of liquid chromatography (LC) coupled with time-of-flight mass spectrometry (TOF-MS) and ion trap mass spectrometry (IT-MS) is well-suited to be performed as qualitative analysis tool in this field. The purpose of this review is to provide an overview on the potential of this integrated strategy, including the review of general features of LC-IT-MS and LC-TOF-MS, the advantages of their combination, the common procedures for structure elucidation, the potential of LC-hybrid-IT-TOF/MS and also the summary and discussion of the applications of the integrated strategy for HM qualitative analysis (2006-2011). The advantages and future developments of LC coupled with IT and TOF-MS are highlighted.