1.Establishment of the Control of Cyclovirobuxine D
Xinjun XU ; Zhengxing ZHANG ; Dengkui AN ; Longsheng SHENG
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
Objective To set up the reference standard of cyclovirobuxine D.Methods Thermal analysis,HPLC/MS,HPLC with terminal wavelength,HPLC with fluorescence derivation and with ultraviolet derivation,TLC and nonaqueous titration methods were applied to determine the content of cyclovirobuxine D control.Results Thermal analysis can not be used to analyse the purity of cyclovirobuxine D ,and HPLC/MS,HPLC with terminal wavelength,HPLC with fluorescence derivation and HPLC with ultraviolet derivation can obtain the same purity.Conclusion The methods used for the assay of cyclovirobuxine D control were practical.
2.Progress on anti-asthma agents targeted for cytokine
Xinjun CAI ; Xiangcai ZHANG ; Yingying XU
Chinese Journal of Clinical Pharmacology and Therapeutics 2000;0(03):-
Several cytokines which play key role in asthma patients with chronic inflammation and reconstruction of air duct,are important targets for anti-asthma agents.In this review,we summarize the latest advancement of anti-asthma agents which targeted for cytokines(interleukins,TNF,eotaxin)and investigation development of new anti-asthma agents emerged in recent years.
3.EpCam and Wnt / β-catenin pathway expression in colon cancer
Fengqiang ZHOU ; Yanmei QI ; Xinjun LI ; Huiguang GUO ; Hong XU
Journal of Chinese Physician 2012;(z1):14-17
Objective EpCam and Wnt/ β-catenin pathway in colon carcinoma and its clinic-pathological significance of the distribution,studying the relationship between EpCam and Wnt / β-catenin.Methods Retrospective analysis detected by immunohistochemistry 60 cases of colon cancer,20 cases of adjacent atypical hyperplasia,60 normal colon tissue EpCam and Wnt / β-catenin protein expression.Results (1)normal colon tissue,cancer tissue and cancer tissue showed positive expression EpCam clear upward trend,were 23.5%,62.3%,96.5% ; with normal colonic mucosa to cancer transformation,β-catenin in the membrane expression of the positive rate decreased,while the cytoplasm is followed by increased expression rate in poorly differentiated carcinoma or even nuclear expression,EpCam strong positive expression of Wnt / β-catenin cytoplasmic-positive rate of histological type,depth of invasion,lymph node metastasis; (2)the EpCam with the Wnt / β-catenin expression showed a positive correlation (r =0.653,P <0.05) ;(3)high expression EpCam and Wnt / β-catenin in patients with colon significant increase in cancer recurrence rate and 5-year survival rate was significantly reduced.Conclusion EpCam and Wnt / β-catenin pathway in colon cancer positively is correlated,EpCam and Wnt / β-catenin is connected with high expression and tumor invasion,metastasis and prognosis.
4.Expression and clinical significance of EpCAM and β-catenin pathway in colon cancer
Fengqiang ZHOU ; Yanmei QI ; Xinjun LI ; Huiguang GUO ; Hong XU
Journal of International Oncology 2011;38(11):873-875
Objective To investigate the expressions and clinical pathological significance of EpCAM and the β-catenin pathway in colon cancer,and the correlation between EpCAM andβ-catenin.Methods Immunohistochemistry was used to detecte the expressions of EpCAM and β-catenin proteins in colon cancer tissues and corresponding adjacent tissues of 70 cases of colon cancer patients,the clinical and pathological features of colon cancer and their relationship were retrospective analyzed.Results ①EpCAM and β-catenin protein expressions in colon cancer tissue was 52 cases (74.3%) and 55 (78.6%) positive respectively; EpCAM and β-catenin proteins in cancer adjacent tissues in 13 cases( 15.7% ) and 9 cases ( 12.9% ) were positive,the differences were statistically significant.②the EpCAM expression is positively correlated with the β-catenin expression ( r =0.616,P < 0.01 ).③The expressions of EpCAM and β-catenin correlated with the tumor differentiation,invasion depth,lymph node metastasis and TNM staging related ( P < 0.05).Conclusion EpCAM and β-catenin pathways in colon cancer positively correlate,and closely correlate with colon cancer.The expression level of EpCAM and β-catenin can be used as a reference for the colon disease course and healing.
5.Analysis of Volatile Constituents in Disposable Infusion Set and Nasal Cannula by Gas Chromatography-Mass Spectrometry
Junwei WU ; Lin ZHONG ; Bin WU ; Xinjun XU ; Rongwei YAN
China Pharmacist 2016;19(3):498-501
Objective:To characterize the volatile compounds in 10 batches of disposable infusion sets and 6 batches of nasal can-nulas by GC-MS and determine the main odor-active compounds. Methods:The volatile components were extracted using a headspace sampler. An HP-5MS capillary column (30 m × 0. 25 mm,0. 25 μm) was adopted, and the qualitative analysis was performed by total ion chromatography ( TIC) of full scan with temperature programmer. Results:A total of 19 major volatile compounds were identified, which were hydrocarbon, alcohol and carbonyl compounds (such as aldehyde and ester). Based on the combination of odor test and GC-MS, the concentration of alcohol compounds (2-ethyl hexanol, 2-EH) had the most notable effect on the odor of samples. Conclu-sion:The samples with unacceptable order contain 2-EH with relatively high content, which should be paid more attention.
6.Optimization of Supercritical CO2 Extraction of Volatile Oil from Fructus Litseae by Central Composite Design-Response Surface Method
Leilei ZHAO ; Yafeng ZHANG ; Junwei WU ; Dongmei WANG ; Xinjun XU
China Pharmacist 2017;20(7):1177-1181
Objective: To optimize the extraction process of volatile oil from Fructus Litseae.Methods: Supercritical CO2 extraction (SFE-CO2) was used to extract volatile oil from Fructus Litseae, and the extraction process was optimized by a central composite design-response surface method (CCD-RSM).The kind and content of volatile oil extracted by SFE-CO2 and steam distillation (SD) were detected by gas chromatography-mass spectrometer (GC-MS).Results: The highest extraction rate of the total effective constituents was 66.26% when the optimum conditions were as follows: the extraction temperature was 44 ℃, the extraction pressure was 26 MPa, entrainer ethanol was 11 ml and the extraction time was 40 min.It was revealed that neral, geranial and limonene were the major constituents.Compared with that of SD, the kind of volatile oil extracted by SFE-CO2 was fewer while the content of citral extracted by SFE-CO2 was higher.Conclusion: The extraction process optimized by CCD-RSM provides reference for the extraction method and quality control of volatile oil from Fructus Litseae.
7.Effect of lysine hydrochloride and zinc gluconate granules combined with montmorillonite powder and live combined bifidobacterium and lactobacillus granules in infantile diarrhea
Yizhi LV ; Xinjun ZHANG ; Zhifei LI ; Jun XU
Chinese Journal of Biochemical Pharmaceutics 2016;36(12):167-169
Objective To evaluate the effect of lysine hydrochloride and zinc gluconate granules combined with montmorillonite powder and live combined bifidobacterium and lactobacillus granules in the treatment of infantile diarrhea.Methods 80 cases of children with infantile diarrhea in our hospital from May 2014 to May 2016 were selected and randomly divided into the combined treatment group ( lysine hydrochloride and zinc gluconate granules combined with montmorillonite powder and live combined bifidobacterium and lactobacillus granules ) , and conventional treatment group ( montmorillonite powder and live combined bifidobacterium and lactobacillus granules ) two groups with 40 cases in each group, the clinical curative effects, adverse reactions, stool frequency recovery normal time, stool normal time, abdominal pain disappeared time, temperature recovery time, vomiting disappeared time of the two groups were statistically analyzed.Results The total treatment effective rate of the combined treatment group 97.5%(39/40) was significantly higher than the conventional treatment group 72.5% (29/40), the difference was statistically significant (P<0.05), the stool frequency recovery normal time, stool normal time, abdominal pain disappeared time, temperature recovery time, vomiting disappeared time were significantly shorter than the conventional treatment group, the difference was statistically significant (P<0.05).Conclusion The effect of lysine hydrochloride and zinc gluconate granules combined with montmorillonite powder and live combined bifidobacterium and lactobacillus granules in the treatment of infantile diarrhea is better than montmorillonite powder and live combined bifidobacterium and lactobacillus granules .
8.Study on Compatibility Stability of Flurbiprofen Axetil Lipid Microspheres Injection
Yuting ZHU ; Jianjun NI ; Xinjun CAI ; Yingying XU ; Feng ZHOU
China Pharmacist 2016;19(9):1781-1782
Objective:To investigate the stability of flurbiprofen axetil lipid microspheres injection combined with 0. 9% sodium chloride injection or 5% dextrose injection, and provide theoretical basis for the clinical application. Methods:The content changes of flurbiprofen axetil in the mixture of flurbiprofen axetil lipid microspheres injection and 0. 9% sodium chloride injection or 5% dextrose injection were determined in 5 h at 25℃ away from light, and the changes in the appearance and particle size of flurbiprofen axetil lip-id microspheres were investigated. The changes in the appearance and particle size of flurbiprofen axetil lipid microspheres in the mix-ture of flurbiprofen axetil lipid microspheres injection and 0. 9% sodium chloride injection before and after freezing and thawing were also investigated. Results:The appearance, particle size and content had no significant changes in all mixtures in 5 h at 25 ℃ away from light. The appearance and particle size of flurbiprofen axetil lipid microspheres in the mixture before and after freezing and thawing had no significant changes as well. Conclusion:The mixture of flurbiprofen axetil lipid microspheres injection and 0. 9% sodium chlo-ride injection or 5% dextrose injection is stable in 5 h away from light.
9.Analysis on the academic cultivation of young TCM scholars based on Professor LIU Zhicheng's academic track.
Shengfeng LU ; Meiling YU ; Xinjun WANG ; Shuping FU ; Xinyue JING ; Zhicheng LIU ; Bin XU
Chinese Acupuncture & Moxibustion 2015;35(7):737-740
In view of the public academic papers of Professor LIU Zhicheng, his academic track is analyzed, including validating effect, exploring mechanism, improving efficacy, expanding disease variety, deepening mechanism, optimizing program and seeking breakthrough. On this basis, combined with the self-character of TCM, the potential path for the academic cultivation of young scholars is refined: focusing on clinical practice, confirming clinical efficacy, deepening mechanism exploration, improving clinical therapeutic effect, optimizing clinical program, extending clinical disease spectrum, inheriting, seeking, breaking through, innovating, expecting and topping over. It is believed that during the academic cultivation, the importance is to form the stable research direction and continuity, organize research team, absorb actively new knowledge and thoughts, and adopt multidisciplinary cross and coordination so as to achieve the greater success ultimately.
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10.Establishment and application of a noval CVS-11 pseudovirus-based assay for detection of neutrali-zing antibody against rabies virus
Yao DENG ; Xinjun LYU ; Pengcheng YU ; Honglin XU ; Qing TANG ; Wuyang ZHU ; Wenjie TAN
Chinese Journal of Microbiology and Immunology 2016;36(10):775-778
Objective To establish a CVS-11 pseudovirus particles ( pp)-based assay for detec-tion of neutralizing antibody against rabies virus. Methods An improved rapid fluorescence focus inhibition test ( RFFIT) for detection of neutralizing antibody against rabies virus ( RVNA) was established based on the CVS-11 pseudovirus expressing a luciferase reporter gene. Forty-six human serum samples were analyzed with the improved RFFIT and the results were compared with those by using standard RFFIT. Moreover, the improved RFFIT was used to detect the titers of RVNA in 91 serum samples collected from pet dogs and pet-breeders in Beijing. Results The coincidence rate of the improved RFFIT and the standard RFFIT was 100% regarding to the analysis of 46 human serum samples and 5 negative reference serum samples. Moreo-ver, the RVNA titers of all serum samples obtained with CVS-11 pseudovirus-based assay showed a signifi-cant high correlation with those obtained with standard RFFIT (n=46, r=0. 94, P<0. 000 1). All of the 91 serum samples collected from pet dogs and pet-breeders in Beijing were positive for RVNA as indicated by the improved RFFIT with a mean titer of 33. 01 IU/ml. Conclusion We established an improved RFFIT based on the CVS-11 pp expressing luciferase reporter gene, which might be used as a reliable alternative RFFIT for measuring RVNA titer. Analysis of the 91 serum samples collected in Beijing with the improved RFFIT showed that all samples were positive for RVNA.