1.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.
2.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.
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.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.
5.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.
6.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 .
7.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.
8.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.
9.Clinical Observation of Adiponectin in Inhibiting Fatty Toxicity by Acupuncture
Bin XU ; Jinhong YUAN ; Zhicheng LIU ; Yani LU ; Xinjun WANG ; Mei CHEN ; Junzuo JIANG
Journal of Acupuncture and Tuina Science 2006;4(4):206-210
Objective:To investigate if acupuncture has an inhibitory effect on fatty toxicity and its possible mechanism. Methods: Thirty-four patients with simple obesity were clinically treated with acupuncture for 3 courses. Before and after treatment, body mass index(BMI) and fat percentage(F%) were determined, and serum insulin and adiponectin were measured by enzyme linked immunoassay, blood lipid and sugar by biochemical colorimetry and eight kinds of free fatty acids(FFAs) by high performance liquid chromatography. Twenty normal persons were selected as a control. Results:The total efficacy rate was 88.2%. Acupuncture could increase the decreased insulin sensitivity index(ISI) in the patients(t=-5.103, P=0.000). The correlation of a decrease in F% with an increase in unsaturated fatty acid after acupuncture was of significance(r=0.402, P=0.019) and its correlation with an increase in the ratio between unsaturated fatty acid and saturated fatty acid was also of significance(r=0.348, P=0.044). The correlation between increases in high density lipoprotein and in eicosapentaenoic acid was of significance(r=0.352, P=0.041). The correlation between a decrease in BMI and an increase in high density lipoprotein was of significance(r=0.357, P=0.038). Adiponectin level significantly rose after acupuncture (compared with pre-treatment, P=0.000). The correlation between a decrease in FFAs and an increase in adiponectin was of significance(r=-0.349, P=0.043). Conclusion: Acupuncture can lower the levels of free fatty acids in the patients and increase their sensitivity to insulin to inhibit the fatty toxicity. The inhibitory effect of acupuncture on fatty toxicity is somewhat related to a rise in adiponectin level.
10.Preparative isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high-speed counter-current chromatography
Mei YANG ; Xinjun XU ; Chunyan XIE ; Jieyun HUANG ; Zhisheng XIE ; Depo YANG
Journal of Pharmaceutical Analysis 2012;02(4):258-263
An efficient method for the isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high speed counter-current chromatography (HSCCC) was established in this paper.The ether extracts of Radix Eupatorii Chinensis were purified by HSCCC with a solvent system of hexyl hydride ethyl acetate-methanol-water (1∶2∶1∶2,v/v/v/v).The upper phase was used as the stationary phase and the lower phase as the mobile phase.About 8.4 mg of 12,13-dihydroxyeuparin was obtained from 200 mg of ether extracts from Radix Eupatorii Chinensis in one-step HSCCC separation,with the purity of 96.71%,as determined by HPLC.After methanolwater recrystallization,the purity of 12,13-dihydroxyeuparin reached 99.83%.Such a simple and effective method was fairly useful to prepare pure compound as reference substances for related study on Radix Eupatorii Chinensis.