1.Research Progress in Decolorization Methods for Polysaccharide Extracts of Traditional Chinese Medicines
Mingquan CHANG ; Xiangqian CHE ; Rongjing JIANG
China Pharmacist 2017;20(5):893-896
The relevant literatures were looked up, summarized, classified and reviewed, and the research progress in decolorization methods for the extracts of traditional Chinese medicines containing polysaccharide was introduced.The decolorization methods commonly used for polysaccharide extracts of traditional Chinese medicines were activated carbon decolorization, macroporous resin decolorization, hydrogen peroxide decolorization, sodium hypochlorite decolorization and so on.According to the combination form of polysaccharide and pigment, the suitable decolorization method should be selected to improve the purity of polysaccharide and the quality of related preparations, which shows guidance effect on fine finishing of traditional Chinese medicines.
2.Practice of quality control of cardiac defibrillator-monitor
Yufeng CHANG ; Mingquan YUAN ; Min WANG
Chinese Medical Equipment Journal 2015;(9):98-100
To master the performances of the cardiac defibrillator-monitor and enhance its reliability and effi-ciency through quality control. ESA612 electrical safety analyzer and Phase3 defibrillator analyzer were used to test the performances of 56 cardiac defibrillator-monitors, involving in basic items detection, electrical safety detection and performance detection. The qualified items included charging times, internal discharge, ECG monitoring and etc, while the unqualified ones included appearance, electrical safety as well as delay time under synchronous mode. The quality control can improve the safety of the cardiac defibrillator-monitor.
3.Effect of Artificial Gastric Juice on Dissolution of Schizandrin A
Mingquan CHANG ; Gaungyi YANG ; Chen CHANG ; Liangyong HUANG
China Pharmacist 2014;(11):1837-1839
Objective:To study the effect of artificial gastric juice on the dissolution of schizandrin A to provide the parameters for the best extraction method of Schisandra chinensis. Methods:Schisandra chinensis was respectively extracted by artificial gastric juice and water. Schizandrin A in the extracts was determined by HPLC, and the dissolution of schizandrin A in artificial gastric juice and water was studied and compared. Results:At 60 min, schizandrin A dissolution was 0. 483% in artificial gastric juice, and 0. 362%in water. Conclusion:The dissolution of schizandrin A in artificial gastric juice is 33. 4% higher than that in water, suggesting artifi-cial gastric juice can significantly improve the dissolution of schisandrin A.
4.Experimental study on the mechanism of GuiJi cream in dispelling effects on corrupt microorganism
Zhengping MEI ; Junjie WANG ; Gang WANG ; Mingquan CHANG ; Guangyi YANG
International Journal of Traditional Chinese Medicine 2010;32(4):301-302
Objective To study the mechanism of GuiJi cream in dispelling effects on corrupt microorganism.Methods A total of 90 full-layer skin injured rats were served as test model. The effects of Guiji cream on collagen type Ⅰ (C Ⅰ), matrix metalloproteinase-1 (MMP-1) and MMP-3 in granulation tissue of wound were observed with immunohistochemistry technique and image-analysis system at various stages of healing. Results The expression of C Ⅰ was obviously increased and the level of MMP-1 and MMP-3 increased at the early stage and kept at a high level from day 3 to day 10. Conclusion The mechanism of GuiJi cream for dispelling effects on corrupt microorganism was increasing the C Ⅰ content in granulation tissue of wound through inhibiting the secretion of MMP- 1.
5.Optimization of Activated Carbon Decolorization Technology for Bletilla Striata Polysaccharide by Orthogonal Test
Xiangqian CHE ; Mingquan CHANG ; Lin CHEN ; Fang CHEN ; Rongjing JIANG
China Pharmacist 2017;20(8):1370-1373
Objective: To optimize the decolorization technology of activated carbon for the plant pigment in Bletilla striata polysaccharide.Methods: Using L 9 (3 4) orthogonal test with activated carbon as the decolorizer, the amount of activated carbon, decolorization temperature, decolorization liquid pH and decolorization time were investigated.The decolorization rate and polysaccharide retention rate were investigated.The decolorization rate and polysaccharide retention rate were taken as the indices.Results: The optimum decolorization technology was as follows: the amount of activated carbon was 1.0%, the decolorization temperature was 40 ℃, the pH value was 5 and the decolorization time was 30 min.Under those conditions, the decolorization rate of Bletilla striata polysaccharide was 91.3% and the retention rate of polysaccharide was 80.6%.Conclusion: The selected decolorization technology of activated carbon can make Bletilla striata polysaccharide get the best decolorizing effect.
6.Determination of Dexamethasone in Verdihong Paints by HPLC
Yubo XIE ; Haowan HUANG ; Ling LI ; Mingquan CHANG
China Pharmacist 2014;(2):320-321,322
Objective:To establish a method for the determination of dexamethasone in Verdihong paints to ensure safety and ef-fectiveness of the clinical medicines. Methods:An HPLC method with a Dikma C18 column (150 mm × 4. 6 mm, 5 μm) was used, the mobile phase was a mixture of methanol-water-glacial acetic acid (80∶20∶0. 5), the detection wavelength was at 240nm, the injec-tion volume was 20 μl, the column temperature was 30℃ and the flow rate was 1. 0 ml·min-1 . Results:The standard curve of dexa-methasone was linear over the range of 3. 0-96. 0μg·ml-1(r=0. 999 7). The average recovery was 99. 45% with RSD of 1. 01%(n=9). Conclusion:The method is simple with good reproducibility, and can be used in the determination of dexamethasone in Verdihong paints.
7.Clinical Efficacy of Compound Bletilla Striata Cream in the Treatment of Second Degree Hand Rhagadia
Mingquan CHANG ; Dejian DUAN ; Fang CHEN ; Gang WANG
China Pharmacist 2015;(5):789-790,791
Objective:To observe the clinical efficacy and safety of compound Bletilla Striata cream in the treatment of patients with second degree hand rhagadia. Methods: Totally 146 patients with second degree hand rhagadia were randomly divided into the treatment group and the control group with 73 cases in each. The treatment group was treated with compound Bletilla Striata cream, while the control group was treated with urea ointment. The treatment course was 10 days. The time of paln disappearance, keratoder-ma softening and rhagadia healing were compared between the two groups, and the efficacy and adverse drug reactions of the two groups were also observed and compared. Results:After the first treatment course, the curative rate of the treatment group was 94. 5%, which was higher than that of the control group (82. 2%) with statistical significance (P<0. 05). The total effective rate of the two groups was both 100% without statistical significance (P>0. 05). The time of keratoderma softening and rhagadia healing in the treatment group was significant shorter than that in the control group (P<0. 05), while the time of paln disappearance showed no significant difference between the two groups(P>0. 05). Conclusion: Compound Bletilla Striata cream in the treatment of second degree hand rhagadia is effective and safe, which shows good prospect for clinical application.
8.Experimental study on the effects of GuiJi cream in anti-fissure and permeability of skin
Gang WANG ; Xiaoli CHENG ; Youlin ZHANG ; Xiuhua ZHANG ; Mingquan CHANG ; Jiong LI ; Taoyang LI
International Journal of Traditional Chinese Medicine 2011;33(10):890-892
Objective To study the effect of Guiji cream in the treatment of fissure and permeability of skin.Methods The models of fissure Japonic rabbits were established to observe the effects of skin cream on inhibiting fissure.Rabbits back area was divided into 6 blocks and given different medicines in six different groups:GuiJi cream group of low dosage,middle dosage and high dosage (0.05、0.1、0.2 g/m-2 crude drug of Bletilla colloid respectively),urea frost cream group(0.1 g/m-2),normal saline group and control group.Observe the changes of skin surface symptoms every day.The permeability test was performed on 36 KM mouse and randomly divided into control group,GuiJi cream group and urea frost cream group(0.2 g/m-2).Apply drugs to the back and observe the permeability change of cilia capillary,and auricle swelling degree in mice of each group.Results The curative criteria for Guiji groups was 3.8~4.1,the inhibition rate of auricular swelling was 75%.GuiJi cream could inhibit xylene-induced ear edema (P<0.05) ; the Inhibition rate of vascular permeability was 45.08%,The ear swelling induced by xylene and increased capillary permeability induced by acetic acid in mice were inhibited significantly (P<0.05) by Guiji cream which had obvious effects on fissure as well as the permeability.Conclusion Guiji chapped skin cream played significant functions in treating fissure and acting anti-inflammatory.
9.Monitoring of blood tacrolimus concentration and lymphocyte subsets in the first uterus transplant recipient in China and its clinical significance
Rui LI ; Liu YANG ; Jinjie LI ; Liang CHANG ; Jing YANG ; Mingquan SU ; Biliang CHEN ; Yueyun MA ; Xiaoke HAO
Chinese Journal of Clinical Laboratory Science 2017;35(1):53-56
Objective To investigate the changes of peripheral blood tacrolimus concentration and lymphocyte subsets in the uterus transplant recipient,and provide the evidence for monitoring the immune status after uterus transplantation.Methods The peripheral blood tacrolimus concentrations of the uterus transplant recipient during 1 year after transplantation were measured with the microparticle enzyme immunoassay (MEIA).Meanwhile,the whole blood cell counts and lymphocyte subsets were determined by the blood analyzer and flow cytometer,respectively.Results The blood tacrolimus concentrations of the uterus transplant recipient in the first month and second month after transplantation were (13.51 ± 3.92) ng/mL and (15.58 ± 1.19) ng/mL,respectively.The lymphocyte absolute counts were normal before transplantation.At the fifth day after transplantation,the counts of CD3 + T lymphocytes,CD4 + T lymphocytes,CD8 + T lymphocytes and NK cells and the ratio of CD4/CD8 were significantly decreased.One week after transplantation,the counts of CD4 + T lymphocytes were recovered to the normal range and maintained,but its recovery was slower than that of CD8 + T lymphocytes.The ratio of CD4/CD8 ranged from 0.4 to 0.8 during 10 days after transplantation,and increased and maintained between 0.8 and 1.1 after that.The counts of NK cells increased gradually from the 10th day after transplantation,but still did not recover to the level before transplantation even at the 20th day after transplantation.However,the counts and percentages of B lymphocytes did not decrease but increased at the fifth day after transplantation,and recovered to normal gradually from the 10th day after transplantation.There was no significant correlation between the CD3 + T lymphocyte count and blood tacrolimus concentration.Conclusion The dynamic changes of blood lymphocyte subsets and tacrolimus concentration exist in the uterus transplant recipient,which need to be further verified by a large amount of clinical data.
10.Determination of the polysaccharide in Verdihong paint
Xueying YU ; Mingquan CHANG ; Fang CHEN ; Gang WANG
Journal of Pharmaceutical Practice 2014;(5):352-353,356
Objective To establish the determination method of the polysaccharide in Verdihong paint .Methods The anhy-drous dextrose was used as the control , 0.2%anthrone-sulfuric acid as the stain , the content of polysaccharide was determined by ul-traviolet spectrophotometer at the wavelength of 620 nm.Results The polysaccharide curve was linear within a range of 1.9~34.2μg/ml, linear equation was Y=0.033 X-0.006 7 (r=0.999 9), the average recovery was 98.6% with RSD of 1.06%(n=6). Conclusion This method was convenient , stable and coud be used to assay content of the polysaccharide in Verdihong paint .