1.Significant demand and key problems of membrane science and technology applying to pharmaceutical industry of Chinese materia medica
Chinese Traditional and Herbal Drugs 1994;0(12):-
To discuss the significant application for the membrane science and technology in the development of pharmaceutical industry of Chinese materia medica(CMM) in such aspects as obtaination of integrated effctive substances,transformation of traditional technology,reduction of power consumption, product safety,sewage treatment,and technological innovation.To analyze the major restrictions on the industrialization of CMM's membrane science and propose the corresponding measures.Currently,the development of macromolecule science and technology and the implementation of environmental-friendly strategy have advanced the technology of membrane to a new stage and thus offer the insurance to the integration of extraction,separation,concentration,and purification in traditional pharmaceutical production of CMM.Meanwhile,the technolgy of membrane separation has been widely used in the separation,concentration, and purification of macromolecule,which bears similar characteristics with traditional CMM.It is also a proof that the technology of membrane will improve the efficency of traditional CMM production when it is used in the pharmaceutical industry of CMM.
2.Effects of herbal compatibility on hyperforin in Hypericum perforatum L.
Chinese Traditional Patent Medicine 1992;0(06):-
AIM:To explore the effect on stability of hyperforin with different medicinal herbs and the changes of hyperforin content in herb combinations with Hypericum perforatum L.(HP).METHODS:Several common antidepressant medicinal herbs were selected separately to match with HP.The herbal samples consisted of HP group,HP with Curcuma wenyujin Y.H.Chen et C.Ling group,HP with Curcuma longa.L.group,HP with Epimedium brevicornum Maxim group and HP with Wuling powder(WY)group.The contents of hyperforin with each group were determined by reverse phase HPLC.RESULTS:The rates of extraction and retention of hyperforin in HP with Curcuma wenyujin Y.H.Chen et C.Ling group and HP with Curcuma longa.L.group were significantly lower than that of HP group.There were no obvious differences in the extraction rates of the HP group,HP with Epimedium brevicornum Maxim group and HP with WY group.The retention rate of hyperforin in HP group with WY powder was higher than that of HP group.The retention rate of hyperforin in HP with Curcuma wenyujin Y.H.Chen et C.Ling group,was lower than that of HP group.CONCLUSION:The results show that compatibility of HP with traditional Chinese medicine have effects on the stability of active herbal component.
3.Establishment of scientific principles on evaluation system for compound Chinese materia medica extraction and separation
Chinese Traditional and Herbal Drugs 1994;0(06):-
Compound composition of several natural products including plants,animals,and minerals.In the different needs of Chinese medicine research and application,different extraction and separation methods have been chosen,however,these technologies lacked of scientific and reasonable evaluation criteria because most of these technologies stem from other disciplines,which is the main reason for limited application of the method in Chinese medicine.So the key scientific issue is to establish the quality evaluation system of extraction and separation technology in line with the modern medicine.This article aims to establish the scientific principles of evaluation system for extraction and isolation of Chinese herbal compound.
4.Study of Quality Standard for Ulter Zhuhuang Gel
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(09):-
Objective To establish the quality standard for Ulter Zhuhuang gel.Methods Indirubin,cholic acid and borneol were identified by TLC.The content of indirubin and cholic acid was determined by HPLC.Result The TLC sports developed was fairly clear.The HPLC method showed that the average recovery of indirubin and cholic acid was 100.3% with RSD=2.1% and 98.9% with RSD=1.8% respectively.Conclusion The method is convenient and accurate.It can be used for the quality control of Ulter Zhuhuang gel.
5.Effect of Pretreatment on Ultra-filtration Membrane Separation of Huoxue Tongluo Extract
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(02):-
Objective To investigate chitosan flocculating and other pretreatments of Huoxue Tongluo extract and their effects on the membrane flux and fouling degree of membrane. Methods Based on the index related to the total sinomenine reserved in liquid and fouling degree of membrane, compared to other pretreatments, discuss the function of chitosan used as flocculation and the effect on membrane separation by orthogonal test. Results The reservation of the total sinomenine was best by means of chitosan flocculation and the smallest fouling degree of membrane was it too, compared with other pretreatments as decompress filtration, high-speed-centrifugation, low-speed-centrifugation and decolored by active carbon. Conclusion Chitosan flocculating is the best pretreatment method of Huoxue Tongluo extract, and the suggested operation condition is that the Huoxue Tongluo extract’s temperature is 50 ℃, pH=5 and add 1% chitosan 30 mL/L.
6.Current situation of traditional Chinese medicine culture propaganda in the field of basic public health
Chinese Journal of Primary Medicine and Pharmacy 2021;28(3):478-480
This review focuses on the current situation of traditional Chinese medicine culture propaganda in the field of basic public health and summarizes that traditional Chinese medicine culture propaganda in this field adopts health lectures, household surveys, books, videos, billboards, village radio and other forms. The existing single forms of publicity lead to poor awareness of traditional Chinese medicine knowledge and nonsufficient service in the treatment with traditional Chinese medicine. It is suggested to build and improve the health publicity system, mobilize the residents' senses in an all-round way, and promote nationwide body health.
8.The role of PD-ECGF and DPI in hepatic metastasis of patients with colorectal carcinoma
Hao GUO ; Zhixiang ZHANG ; Liwei ZHU
Medical Journal of Chinese People's Liberation Army 2001;0(09):-
Objective To investigate the changes in Doppler perfusion index(DPI)of the liver and the platelet derived-endothelial cell growth factor(PD-ECGF)in patients with liver metastasis from colorectal carcinoma by determination DPI and PD-ECGF mRNA and protein expression levels.Methods One hundred patients were enrolled,including 50colorectal carcinoma patients(22of whom with liver metastasis and 28patients without liver metastasis)and 50healthy subjects as control.For all the objects involved,hepatic perfusion was documented with color Doppler flow imaging,and the DPI(hepatic arterial/total liver blood supply)was computed.The expression levels of protein and mRNA of PD-ECGF in 50specimens of carcinoma and adjacent tissues of colorectal carcinoma were assayed by immunohistochemistry and real-time fluorescence quantitative PCR methods in patients with colorectal carcinoma.Results According to pathology and imaging results,the DPI of colorectal carcinoma patients with liver metastasis was significantly higher than that in healthy control group and non-liver metastasis group(P0.05).According to the results of immunohistochemistry and real-time fluorescence quantitative PCR,the expression levels of PD-ECGF protein and mRNA were significantly higher in colorectal carcinoma than that in adjacent tissues(P
9.Refinement of General Flavone of Sophora Flavescens Decoction by Macroporous Resin Combined with Ceramic Microfiltration Membrane
Hongning GAO ; Wanqin JIN ; Liwei GUO
Chinese Traditional Patent Medicine 1992;0(09):-
Objective: To study the refinement of general flavone of sophora flavescens decoction by macroporous resins combined with ceramic microfiltration membranes (MR-CM), and compare it with macroporous resin combined with alcohol-sedimentation (MR-AS). Methods: UV-spectrophotometry method was applied to analyze the content of general flavone of sophora flavescens. Results: The porous ratio and effect of eliminating impurity of general flavone of sophora flavescens decoction by MR-CM method was higher than those by MR-AS method, but the MR-CM method is of simple operation and short period.Conclusion: MR-CM method is better than alcohol-sedimentation-macroporous resin method in refining of general flavone of sophora flavescens decoction.
10.Fouling mechanism during refined process of Qingluo Tongbi Decoction by inorganic ceramic membrane
Jie DONG ; Liwei GUO ; Yuan YUAN
Chinese Traditional and Herbal Drugs 1994;0(12):-
Objective To study the fouling mechanism during the filtration of traditional Chinese medicine decoction by inorganic ceramic membrane so as to make a valuable exploration both on membrane fouling prevention and the industrialization of membrane separation technology in the field of Chinese materia medica. Methods Micro-filtrating Qingluo Tongbi Decoction using alumina ceramic membrane, researching the applicability of the membrane with different pore sizes, observing the fouling on membrane surface by scanning electron microscopy, studying the resistance distribution of membrane in filtration process, analyzing the fouling existence shape, position, and forming rule. Results In this system, alumina membrane with the pore size of 0.2 ?m was most suitable, which had the biggest permeating flux and reservation rate of effective component with less fouling. Among the alumina membranes with three different pore sizes, auto resistance and pore block resistance made up inferior percentage in total resistance, fouling resistance distribution mainly consisted of the reversible resistance, such as concentration polarization and gel layer resistance. Conclusion Optimizing parameters of the techniques in membrane process, using suitable pretreatment method and cleaning method can reduce membrance fouling and make the memberane property recover.