1.Optimization of extraction technology of the polysaccharides from sporophyll of Undaria pinnatifida Suringar by orthogonal design
Liang ZHU ; Qing ZHANG ; Qinchang ZHU ; Yifei WANG ; Yinzhou CEN
Chinese Journal of Marine Drugs 2000;0(06):-
Objective To study the extraction technology of the polysaccharides from Sporophyll of Undaria pinnatifida Suringar and find out the optimum extraction condition.Methods The extraction technology was studied by the orthogonal design.Results The optimum extraction conditions were to add 50 times of water to the Undaria pinnatifida Suringar material at 90℃ for 4 hours.Conclusion This optimum extraction technology based on the orthogonal design was confirmed by the experiment and was available in the future research.
2.Yield and quality of Coptis chinensis from different varieties
Qiang ZHU ; Youwei WANG ; Haitao QI ; Qing WANG
Chinese Traditional and Herbal Drugs 1994;0(12):-
0.05), but the yields of four-year-old and five-year-old Dahuaye and Wuguangye samples were significantly higher than that of Xiaohuaye sample (P0.05). Conclusion The varieties of Dahuaye and Wuguangye are excellent in higher yield and better quality, and both of them can be used as origin seeds in the GAP plantation of C. chinensis.
3.Genotyping of Candida albicans Isolated from Different Body Sites of Women Suffering from Candi-dal Vulvovaginitis
Xiaofang ZHU ; Qing WANG ; Qiangqiang ZHANG ; Daming REN ; Jiajun WANG
Chinese Journal of Dermatology 2003;0(08):-
Objective To study the distribution of genotypes of Candida albicans isolated from different body sites of patients with candidal vulvovaginitis(CVV).Methods PCR was designed to amplify group I intron-containing region in25S rDNA of Candida albicans.The strains of Candida albicans could be classified into three genotypes:genotype A(~450bp),B(~840bp)and C(~450bp and~840bp),on the basis of different ranges of bands of amplicons.Results Sixty women with CVV were recruited,of whom54were caused by Candida albicans.Among the54patients39had non-recurrent CVV and15had recurrent CVV(RCVV).Candida albicans could be isolated simultaneously from different body sites in32of54patients,including19(19/39)with non-RCVV and13(13/15)with RCVV.A total of92strains of Candida albicans were isolated from vagina,tongue and anus in54patients with CVV.Eighty strains of genotype A,8of genotype B and4of genotype C were found.The same genotypes of Candida albicans in different body sites were identified in24patients,and the different genotypes were identified in8patients.Conclusion Genotype A is predominant in CVV.The other two genotypes(B and C)are not commonly seen,and mainly isolated from non-vaginal sites.The colonization of Candida albicans in the non-vagina sites is more frequent in RCVV than that in CVV,and the intestinal reservoir theory may play a role in the relapse of RCVV.
4.Roles of OPG and OPGL in periprosthetic osteolysis
Xiao-Qing WANG ; Zhen-An ZHU ; Yue-Hua SUN ;
Chinese Journal of Orthopaedic Trauma 2004;0(08):-
Objective To investigate the histological and biochemical responses associated with periprosthetic osteolysis,including the changes of tumor necrosis factor-?(TNF-?),osteoprotegerin(OPG) and os- teoprotegeria ligand (OPEL) in the interface membrane in rat models so as to understand the mechanisms of these interactions.Methods Twenty-four male SD rats were used in this study.A titanium alloy plug was inserted into each distal femur through the knee joint.Polyethylene particles were injected into the left knee at 2,4,6,8 and 10 weeks after implantation of the plugs.Saline solution was injected into the right knee as the control.The animals were killed 12 weeks after implantation.The distal femur was taken from each knee to make histological sections. The samples were made decalcified and stained with hematoxylin and eosin.The histopathological changes were observed under a light microscope.The concentrations of TNF-?in the membrane were assayed by a ELISA kit and the mRNA expressions of OPG and OPEL extracted from the tissue around the plug were detected by RT-PCR. Results The interface membrane taken from the experimental side was found to contain extensive fibrous tissues which extended deeply into the surrounding hone.TNF-?concentrations in the membrane of the experimental side were higher than in the control membrane.There was a significant decrease of OPG mRNA and a significant increase of OPGL mRNA in the membrane around the plug at the experimental side compared with the control side.Con- clusions Polyethylene particles can induce inflammatory responses around the titanium alloy plug.The increase of OPGL expression and reduction of OPG expression in membrane at the experimental side may be induced by TNF-?. Such changes might contribute to the differentiation of osteoclasts and result in the periprosthetic osteolysis.
5.Effect of Integrated Pharmaceutical Care on Rational Drug Use in Patients Treated with Ambulatory Chemotherapy
Liang TAO ; Bin ZHU ; Zheyuan WANG ; Bo YU ; Qing ZHAI
China Pharmacist 2014;(10):1729-1731
Objective:To promote the rational drug use in the patients treated with ambulatory chemotherapy. Methods:A model of integrated pharmaceutical care was established using such service as the real-time prescription examination, configuration standardi-zation, active care and prescription review. Results:The integrated pharmaceutical care could effectively reduce the unreasonable drug use, optimize drug use structure, lower the medical expenses and provide supporting data for clinical decision-making. Conclusion:The development of integrated pharmaceutical care in the patients treated with ambulatory chemotherapy is an important field for phar-macists displaying professional skills, which can promote the rational drug use. The treatment efficacy and life quality of cancer patients can be improved with the cooperation of doctors, nurses and pharmacists.
6.Research progress of targeted drugs in breast cancer treatment
Shaoju GAN ; Qing WANG ; Limin ZHU ; Hao XIE ; Xianfeng DING
Basic & Clinical Medicine 2015;(1):134-137
Because of its specificity , significant effect , low side effect , molecular targeted therapy has been applied in the treatment of breast cancer .Recently, various molecular targeted drugs have been exploited including targeted HER family, VEGF, multi-targeted therapeutic drugs , and drugs combination .
7.The construction and sub-cellular localization analysis of novel mycobacterial membrane-anchored expression vector
Xin WANG ; Xiaoyong FAN ; Hui MA ; Qing QU ; Yuexiong ZHU
Chinese Journal of Microbiology and Immunology 2011;31(6):537-543
Objective To construct mycobacterial membrane-anchored expression vector and to analyze expression level and sub-cellualr localization of exogenous target protein. Methods Based on the mycobacterial intracellular expression vector pMFA42 which contained a strong promoter of pfurAma mutant, the signal sequence of Mycobacterium tuberculosis(Mtb) 19×103 lipoprotein (19SS) was synthesized and was then cloned into the downstream of pfurAma mutant to generate the mycobacterial membrane-anchored expression vector pMFA42M. The coding gene of enhanced green fluorescent protein(EGFP) was amplified by PCR, and then sub-cloned into these two vectors described above to construct recombinant EGFP fused and membrane-anchored strains, respectively. The coding genes of Mtb immuno-dominant antigens Ag85A and its chimera Ag856A2 were then sub-cloned intothe membrane-anchored construct pMFA42MG to produce recombinant Mtb antigen EGFP fused-expression strains. After that, expression levels and sub-cellualr localization of exogenous target protein were further analyzed by Western blot and flow cytometry sorting(FCS), and the fluorescence intensities of recombinant EGFP- expressed strains were observed in vitro directly and after transfection of murine macrophage cell line RAW264.7. Results The novel mycobacterial membrane-anchored expression vector was constructed successfully by introduction of signal sequence of Mtb 19×103 lipoprotein. Using of EGFP as model antigen, exogenous target protein was demonstrated to be expressed with high level and could be anchored into cell membrane of recombinant mycobaterial strains. Conclusion A novel mycobacterial membrane-anchored expression vector was constructed successfully to research recombinant BCG and functions of mycobacterial membrane proteins, and the constructed EGFP-expressed recombinant strains could also be used to research cytophagy in cell model and mycobacterial colony and translocation in animal immunization as model indicator bacteria.
8.The research development of inflammatory signal pathway of atherosclerosis
Yujie LI ; Qing YANG ; Xiaogang WENG ; Yiwei WANG ; Xiaoxin ZHU
Chinese Pharmacological Bulletin 2003;0(07):-
Inflammation is one of the key pathological process of atherosclerosis (AS),and multiple risk factors of AS have consanguineous relationships with the regulation of inflammatory signal pathway.So it could be effective approach to control inflammation,even the pathological process of AS if we do the deep research on AS inflammatory signal pathway and make out the potential medicine.
9.In vitro release behavior and in vivo pharmacokinetics of ibuprofen inclusion complex in situ gel
Xinyu LI ; Zhaojing ZHU ; Keke CHE ; Lijuan WANG ; Qing WU
Journal of Third Military Medical University 2003;0(18):-
Objective To prepare thermosensitive in situ gel of ibuprofen ( IBU) inclusion complex with poloxamer and evaluate its release behavior in vitro and in vivo. Methods The IBU inclusion complexes were prepared by lyopyilization. The poloxamer 407 and 188 were added as a base for the preparation of gel. The release of inclusion complex gel was evaluated by membraneless models. The pharmacokinetics was evaluated after intramuscular injecting IBU solution or IBU inclusion complex gel to New Zealand white rabbits. The drug concentrations in the plasma were measured by HPLC. Results The loading amount of IBU was 10. 24% . The corrosion of gel and the release of IBU correspond to zero-order kinetics. Compared with IBU solution,the tmax and t1/2 were prolonged and Cmax was degraded while AUC was enhanced obviously. Conclusion The IBU inclusion complex gel is used as a good injection with sustained-release which can improve the analgesia and an- ti-inflammatory effect of ibuprofen. And our study builds up the foundation for the use of water-insoluble drug in thermosensitive in situ gel.
10.Determination of polysaccharide from Ecklonia kurome
Liang ZHU ; Qing ZHANG ; Yifei WANG ; Yanyan KANG ; Yinzhou CENG
Chinese Journal of Marine Drugs 2000;0(06):-
Objective To develop a stable and simple method to measure the polysaccharide in Ecklonia kurome Okam.Methods After the conversion coefficient of polysaccharide from Ecklonia kurome Okam to glucose was obtained,the content of polysaccharide was measured by phenol-sulfuric acid method.Results The correlation coefficient of standard curve was(0.9998),the recovery rate was 97.35% and RSD was 4.68%.Conclusion The method was convenient for content determination of polysaccharide from Ecklonia kurome Okam as well as its related products.