1.Study on Quality Standard of Anti- virus Oral Liquid
Xiaoling HUANG ; Xiangxiang LIU ; Shiyong WAN ; Lifei SONG
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(03):-
Objective To improve the quality standard of Anti- virus Oral Liquid. Methods Rhizoma Anemarrhenae and Rhizoma Acori tatrinowii in Anti- virus Oral Liquid were identified by TLC. Forsythin in Fructus Forsythiae was determined by HPLC. Results Rhizoma Anemarrhenae and Rhizoma Acori tatrinowii can be identified by TCL. The linearity of forsythin in the range of 0.1~ 0.6 ? g/? L was good, r=0.9998. The average recovery is 99.87 % , RSD=1.93 % . Conclusion The methods is accurate, reliable and specific and can be used for the quality control of Anti- virus Oral Liquid.
2.Studies on Fingerprint of Radix Curcumae
Shiyong WANG ; Lifei SONG ; Xiaoling HUANG ; Xiangxiang LIU
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
Objective The fingerprint of volatile components from three breeds of Radix Curcumae was compared to supply evidence for the standard of quality control of Radix Curcumae.Methods Gas chromatography was used to establish fingerprint of Radix Curcumae and GC-MS chromatography was applied to identify its characteristic peaks. The similarity of fingerprint was evaluated by computing method.Results The fingerprint had its similarity and characteristics in different breeds of Radix Curcumae. The fingerprint detection is a good method for identifying Radix Curcumae,RSD 2.53 %.Conclusion This method is simple and effective for identifying different breeds of Radix Curcumae and can be used to control the quality of medicinal material of Radix Curcumae.
3. Ultrastructural changes of the white zone cells of the meniscus in a rat model of early osteoarthritis
Chinese Journal of Tissue Engineering Research 2021;25(8):1237-1242
BACKGROUND: The research focuses of knee osteoarthritis are on mainly articular cartilage, subchondral bone and synovium. There are few studies on the ultrastructure of the meniscus in animal models. OBJECTIVE: On the basis of observing the ultrastructure and types of chondrocytes in the white zone of the meniscus, to observe the ultrastructural changes of the white zone cells of the meniscus in an animal model of early osteoarthritis, in order to explore the relationship between the microstructural changes and the physiological functional changes in the meniscus. METHODS: Sprague-Dawley rats were randomly divided into a control group and a model group. Rats in the model group were made into the model of early knee osteoarthritis by intraarticular injection of papain. After 5 weeks, the meniscuses of three rat models in each group were taken, located and observed for the ultrastructure of the white zone cells through a transmission electron microscope. An ethics approval was obtained from the Animal Ethics Committee of Fujian University of Traditional Chinese Medicine. RESULTS AND CONCLUSION: In the control group, most of cells were fusiform in the superficial layer of meniscus and were triangular-like in the deeper layer. They were rich in rough endoplasmic reticulum and mitochondria, with presence of Golgi and other organelles. Extracellular collagen fibrils were mainly type II collagen fibrils. The cells in the white zone of meniscus were chondrocytes. In the model group, the meniscal surface became rough, the cells were swollen, cytoplasmic organelles were reduced and swollen, glycogen was accumulated, and most of nuclei were abnormal with heterochromatin agglutination. Extracellular collagen fibrils became disordered and sparse. These findings indicate that the mild degeneration of chondrocytes and matrix in the meniscus can reduce the ability of cells to synthesize and secrete matrix components, which may lead to the physiological hypofunction.
4.EGFP gene transfection into the joint synovial tissues of rheumatoid arthritis rats by ultrasound-mediated microbubble destruction
Xiangxiang JING ; Jie LIU ; Bingang YANG ; Shaoqing FU ; Bingyan LIU ; Tangna WU ; Donglin WANG
Chinese Journal of Ultrasonography 2013;22(10):897-900
Objective To explore the feasibility of enhanced green fluorescent protein (EGFP) transfection into the joint synovial tissues of rheumatoid arthritis (RA) rats by ultrasound-mediated microbubble destruction.Methods Twenty-eight normal rats were established the RA rat model,four rats were control group,twenty-four rats were categorized into four experimental groups:EGFP,ultrasound +EGFP,microbubbles + EGFP,and ultrasound + microbubbles + EGFP.The last group was irradiated with ultrasound for 10 min after the mixture consisting of 300 μl Sono Vue and 10 μg EGFP was injected into the joint cavity.The rats were sacrificed after 3 days and the joint synovial tissues were collected for EGFP observation under fluorescence microscopy and quantitative analysis by real-time polymerase chain reaction (RT-PCR).Results Comparing with control group,EGFP expression was observed in the rat joint synovial tissues from all groups.However,a strong EGFP expression was observed in the ultrasound + microbubbles +EGFP group.EGFP expression had no statistically significant difference (the P values were 0.89,0.93,and 0.82,respectively,P > 0.05) in the EGFP,ultrasound + EGFP and microbubbles + EGFP groups.However,EGFP expression in the EGFP,ultrasound + EGFP,microbubbles + EGFP groups significantly differed (all P values were <0.01) from that in the ultrasound + microbubbles + EGFP group.Conclusions Ultrasound-mediated microbubble destruction can improve EGFP transfection efficiency into the joint synovial tissues of RA rats.
5.Value of shear wave elastography in differential diagnosis of Hashimoto's thyroiditis complicated with thyroid nodules
Lili LIU ; Lan FENG ; Yang TAO ; Bing'ang YANG ; Xiangxiang JING ; Bingyan LIU ; Donglin WANG ;
Chinese Journal of Medical Imaging Technology 2017;33(8):1202-1205
Objective To evaluate the differential diagnosis value of shear wave elastography for Hashimoto's disease with benign or malignant thyroid nodules.Methods Fifty four patients of Hashimoto's disease confirmed by biopsy or pathology were enrolled.Based on benign or malignant of nodules,patients were divided into benign nodules group and malignant nodules group.And the benign group were divided into true nodules and sham nodules.Young's modulus values were measured and compared among different groups.The ROC curve was drawn to evaluate the diagnostic efficency.Results There were tatol 162 nodules in 54 cases with Hashimoto's disease,including 131 of benign nodules (93 of true nodules,38 of sham nodules) and 31 of malignant nodules.The values of Young's modulus for benign,malignant,ture nodules and sham nodules were (33.04±10.95)kPa,(66.15±19.17)kPa,(35.95±9.74)kPa and (30.13±11.87)kPa.For mean values of Young's modulus,there was significantly statistical difference between benign and malignant nodules (t=12.91,P<0.01).There was significant statistical difference of the Young's modulus among sham nodule group,true nodule group and malignant nodule group (F 36.20,P<0.01).Compared with the other two groups,the value of Young's modulus in malignant nodules was significantly higher than that in the other two groups (both P<0.01).Taking 43.65 kPa as the diagnostic point,the sensitivity,specificity,positive likelihood ratio,and negative likelihood ratio of Youngs modulus in diagnosis of benign and malignat nodules were 90.63%,81.25%,4.83,and 0.12.Conclusion Shear wave elastography technique can quantitative analysis the Hashimoto's disease and complicated nodules,which is helpful to determine the essence of the nodules.
6.Development of a Software for Automatically Generated Contours in Eclipse TPS.
Zhao XIE ; Jinyou HU ; Lian ZOU ; Weisha ZHANG ; Yuxin ZOU ; Kelin LUO ; Xiangxiang LIU ; Luxin YU
Chinese Journal of Medical Instrumentation 2015;39(3):225-227
OBJECTIVEThe automatic generation of planning targets and auxiliary contours have achieved in Eclipse TPS 11.0.
METHODSThe scripting language autohotkey was used to develop a software for automatically generated contours in Eclipse TPS. This software is named Contour Auto Margin (CAM), which is composed of operational functions of contours, script generated visualization and script file operations. RESULTS Ten cases in different cancers have separately selected, in Eclipse TPS 11.0 scripts generated by the software could not only automatically generate contours but also do contour post-processing. For different cancers, there was no difference between automatically generated contours and manually created contours.
CONCLUSIONThe CAM is a user-friendly and powerful software, and can automatically generated contours fast in Eclipse TPS 11.0. With the help of CAM, it greatly save plan preparation time and improve working efficiency of radiation therapy physicists.
Humans ; Radiotherapy Planning, Computer-Assisted ; Software
7.Study on Composite Enzyme Assisted Extraction of Hyperoside from Acanthopanax sessiflorus
Enbo CAI ; Jing XU ; Xiaoman ZHENG ; Yanan WANG ; Dalong WANG ; Manling ZHENG ; Xiangxiang LIU ; Yan ZHAO
Herald of Medicine 2016;35(6):636-639
Objective To extract hyperoside from the leaves of Acanthopanax sessiliflorus by complex enzyme method, and optimize the extraction process by orthogonal experiment. Methods Hyperoside was determined by HPLC. Effects of temperature,α-amylase, neutral protease and cellulase on extraction rate were detected by the orthogonal tests, and the optimum extraction condition of hyperoside from the leaves of Acanthopanax sessiliflorus was determined by complex enzyme method. Results The main influence factor was temperature,follows byα-amylase, neutral protease and cellulase according to orthogonal analysis.The best condition was as follows: dose of cellulase, neutral protease and α-amylase was 2%, 0. 5% and 3%, respectively, extract at temperature of 30 ℃for 10 min. Under this condition, the extraction rate of hyperoside in the leaves of Acanthopanax senticosus was 0.52%. Conclusion As compared with the traditional technics, compound enzyme increases the productivity of hyperoside.
8.Optimization of Extraction Process for Arctiin and Arctigenin inArctium lappaL. Based on Central Composite Design and Response Surface Methodology
Enbo CAI ; Wei WANG ; Caixia JIA ; Yan ZHAO ; Dalong WANG ; Xiangxiang LIU ; Dingrong YE ; Limin YANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(9):1828-1832
This study was aimed to optimize the extraction process of double-marker components for Arctium lappa L. The central composite design and response surface methodology was used. According to 3 main factors, the extraction rates of arctiin and arctigenin was used as evaluation indexes. Multiple linear regression and two-order polynomial equation were used. The binomial fitting model was performed in the optimization of arctiin and arctigenin extraction technology. The results showed that the indentified optimized extraction technology of arctiin and arctigenin was 70% ethanol, 24-fold, ultrasonic solvent extraction for 15 minutes. It was concluded that this technology was able to extract large amount of arctiin and arctigenin, which provided experiment evidences for arctiin and arctigenin preparation. It also provided references for the development and utilization of arctiin and arctigenin.
9.Application of chromatographic fingerprint of immature fruits of Terminalia chebula and its extracts
Yuzhen YAN ; Peishan XIE ; Lifei SONG ; Xiangxiang LIU ; Pinghua LU ; Xiaolin HUANG
Chinese Traditional Patent Medicine 1992;0(08):-
AIM: Terminalia chebula contained hydrolysable tannins up to about 35%. It was necessary to establish a chromatographic fingerprint to meet the quality control need effectively. METHODS: HPLC method was carried out with 3 kinds of the mobile phase , namely, A∶ 0.05mol?L -1 Phosphoric acid/ 0.05mol?L -1 Potassium dihydrogen phosphorate aqueous solution, B: methanol and C: Ethyl acetate, running in gradient mode based on the previous experiment. RESULTS: A marked peaks of HPLC fingerprint of the raw material, the extracts and its final product consisted of gallic acid, terchebulin, chebulamin, chebulagic acid and chebulinic acid. CONCLUSION: The fact has depicted that chromatographic fingerprint is a powerful tool for in-process-quality supervisory control and dynamic analysis of the active constituents during manufacture procedure of immature fruit products of Terminalia chebula.
10.Roles of transcription factor Bach1 in human microvascular endothelial cell function
Junxu LIU ; Li JIANG ; Xiangxiang WEI ; Cong NIU ; Sifeng CHEN ; Dan MENG
Chinese Journal of Pathophysiology 2014;(12):2195-2200
[ ABSTRACT] AIM:To determine the role of transcription factor Bach1 in the functions of human microvascular en-dothelial cells ( HMVECs ) .METHODS: Bach1 siRNA was transfected into HMVECs to knock down the expression of Bach1.In vitro endothelial cell tube formation assay in Matrigel culture was used as a surrogate assay for angiogenic poten-tial.Migration of HMVECs was determined by using Transwell chambers.Cell proliferation was measured by CCK-8 assay. Real-time PCR, Western blotting, and ELISA were employed to determine mRNA expression and protein level.Reporter as-say was performed to determine vascular endothelial growth factor ( VEGF) transcriptional activity.RESULTS:Knockdown of Bach1 expression in HMVECs led to an increase in the tube formation and increased endothelial cell migration ability, whereas it has little effect on cell proliferation.Bach1 silencing increased the mRNA and protein expression of heme oxygen-ase-1 (HO-1), and enhanced VEGF transcriptional activation, and mRNA and protein expression.CONCLUSION:Bach1 silencing increases HO-1 and VEGF expression, thus promoting the cell migration and tube formation of HMVECs, indicating that Bach1 is a repressor for angiogenesis.