Effects of ginkgo biloba extract combined with glucocorticoid on olfactory function and inflammatory cytokines in mice with allergic rhinitis / 临床耳鼻咽喉头颈外科杂志

To determine whether ginkgo biloba extract(GBE)combined with dexamethasone(DEX)plays a role in the treatment of allergic rhinitis-related olfactory dysfunction using an animal model.Six week old BALB/C mice were sensitized and challenged with ovalbumin.30 sensitized mice were divided into three groups:Group 1 was given high-dose GBE and DEX(n=10);Group 2 was given low dose GBE and DEX(n=10);Group 3 was given DEX alone(n=10).We assessed the histology of the olfactory mucosa and serum IL-4,IFN-γ,and caspase 1.A significant higher fraction of mice in group 1 could find the food pellet within300 scompared to group 3(<0.05).Caspase-1 levels improved during the second week compared with the first week in each group.IFN-γlevels were significantly lower during the second week compared with the first week(<0.05,all).IL-4 levels also were significantly lower during the second week compared with the first week in all groups except those receiving DEX alone.IFN-γ/IL-4 levels in each group were significantly lower during the second week compared with the first week(<0.05,all).In this animal model of allergic rhinitis-related olfactory dysfunction,the addition of ginkgo biloba extract to dexamethasone have a better anti-inflammatory effect,which can partly improve the therapeutic effect on olfactory dysfunction caused by allergic rhinitis.

Establishment and application of "multi-dimensional structure and process dynamic quality control system" in preparation products of traditional Chinese medicine (II) / 中国中药杂志

Appropriate dosage forms of traditional Chinese medicine (TCM) preparation products, improve effectively drug efficacy and reduce side effects, and also facilitate the use in clinic. In addition, it may also promote the development of the modernization of TCM. TCMs were developed to finish products which possessed suitable dosage form characteristics through multiple steps from raw herbs to preparation. In this paper, we discussed other two key technologies of "multi-dimensional structure & process dynamic quality control system": (1) The dosage form is an important factor affecting the efficacy and safety for the prevention and treatment of diseases. Therefore, the control of the quality of the formulation characteristics is more important. (2) Process dynamic quality control: the dynamic quality control in the production process is particularly critical because drugs are produced rather than testing. In this paper, the paper demonstrates the important role of the system in the quality control of TCM for strengthening the quality control of the production process of TCM preparation, and then further providing a theoretical basis for improving the efficacy of TCM products.

Establishment and application of "multi-dimensional structure and process dynamic quality control technology system" in preparation products of traditional Chinese medicine (I) / 中国中药杂志

Safety is an important component of the quality control of traditional Chinese medicine (TCM) preparation products, as well as an important guarantee for clinical application. Currently, the quality control of TCMs in Chinese Pharmacopoeia mostly focuses on indicative compounds for TCM efficacy. TCM preparations are associated with multiple links, from raw materials to products, and each procedure may have impacts on the safety of preparation. We make a summary and analysis on the factors impacting safety during the preparation of TCM products, and then expound the important role of the "multi-dimensional structure and process dynamic quality control technology system" in the quality safety of TCM preparations. Because the product quality of TCM preparation is closely related to the safety, the control over safety-related material basis is an important component of the product quality control of TCM preparations. The implementation of the quality control over the dynamic process of TCM preparations from raw materials to products, and the improvement of the TCM quality safety control at the microcosmic level help lay a firm foundation for the development of the modernization process of TCM preparations.

Innovation and practice of component structure theory on material basis of traditional Chinese medicine prescriptions / 中国中药杂志

The component structure theory on material basis of traditional Chinese medicine prescriptions provides a new research thought and method for studies on traditional Chinese medicine prescriptions in line with integrated and systemic characteristics of traditional Chinese medicine. Through years of exploration and accumulation, studies on component structures have made achievements. On the basis of summarizing the component structure development of material basis of traditional Chinese medicine prescriptions, we systematically explained the background of component structures and their roles and progress in quality control of traditional Chinese medicine prescriptions and modern innovative traditional Chinese medicine preparations. Studies on component structures promote the changes in material basis of traditional Chinese medicine prescriptions, and point out the direction for the modernization development of traditional Chinese medicine prescriptions.

A process to prepare a synthetic filter material containing nutrients for biofiltration.

In this study, an optimal process to prepare a synthetic filter material (poly(vinyl alcohol) (PVA)/peat/KNO(3) composite bead) containing nutrients was developed for biofiltration. The optimal preparing condition was that each of the peat and PVA aqueous solutions contains 6.4 g KNO(3) and the nitrogen content in the boric and phosphate aqueous solutions must retain higher than 3.94 and 1.52 g N/l, respectively. The equilibrium amount of water-soluble nitrogen dissolved out of the prepared composite bead was between 7.95 and 8.21mg N/g dry solid. The path of water-soluble nitrogen dissolving out of the A-type bead was the water-soluble nitrogen dispersed in the peat phase initially diffused into the outer PVA phase and then it diffused out of the bead surface. And the path of water-soluble nitrogen dissolving out of the H-type bead was the water-soluble nitrogen dispersed in both the peat and PVA phases simultaneously diffused into the outer PVA phase and out of the bead surface, respectively. The microbial growth rate k(g) of the H-type composite bead was higher than that of the A-type composite bead approximately 1.09-1.58 times, and its value was between 0.100 and 0.417 day(-1) as the composite bead was immersed in 0-0.896 M KNO(3) solution. The maximum value of k(g) appeared at the composite bead immersed in 0.384 M KNO(3) solution and was higher than that of the compost by a factor approximately 1.49. The percentage of removed volatile organic compounds (VOCs) remained at more than 98% during the biofilter operating 230 days as the composite bead was immersed in KNO(3) aqueous solution before packing. This composite bed was without the further addition of nutrients during this operating period. It was proved that this composite bead was superior to the compost as a filter material.