1.Current progression and prospect in the targeting therapy of age-related macular degeneration
Chinese Journal of Experimental Ophthalmology 2012;30(1):1-6
Age-related macular degeneration (AMD) has become a leading cause of irreversible visual loss in senior population and a serious issue of public health as the aging of society worldwide,especially wet AMD.Wet AMD is characterized by choroidal neovascularization(CNV)with a rapidly developing process andsevere impairment of visual acuity.The effective therapy that can destroy choroidal neovascularization and improve visual acuity for very long time is lack.In the recent 20 years,more attentions focuse on the treatment of choroidal neovascularization.From bench to bedside,the research on targeted treatment of angiogenesis brings the bloom of wet AMD medical therapy.This paper will summarize the update information of wet AMD.
2. Role of soluble urokinase-type plasminogen activator receptor in renal diseases
Journal of Medical Postgraduates 2018;31(7):768-772
Soluble urokinase-type plasminogen activator receptor(suPAR) , a new injury biomarker, is widely used in research of infectious diseases, cancer, cardiovascular diseases, autoimmune diseases, etc. In recent years, suPAR has been suggested to play an important role in various renal diseases. This review focuses on studies of suPAR in renal diseases and update, which will provide new clues for the diagnosis and treatment of renal diseases.
3.Function and formation mechanism of neutrophil extracellular traps in related diseases
Di WANG ; Jing WU ; Li YU ; Xiao XIAO ; Fengmin ZHANG
Chinese Journal of Microbiology and Immunology 2021;41(1):69-73
Neutrophil extracellular traps (NETs) are fibrous structures released by neutrophils and the formation process is called NETosis. NETs participate in the host innate immunity. Recent research has found that NETs is a double-edged sword. Under normal conditions, the formation of NETs can play a role in clearing pathogens and maintain the host homeostasis. However, when NETs are overproduced or not cleared in time, they can take part in the pathogenesis of many diseases. This article reviewed the formation of NETs, the mechanisms involved in NETosis and the role of NETs in the secretion of multiple cytokines in different diseases.
4.CXCL12 Chemokine Mediates Mesenchymal Stem Cell Adhesion and Proliferation Through ?_V and ?_3 Integrins
Xiao-Wei CHI ; Jing-Bo HOU ; Bo YU ;
China Biotechnology 2006;0(07):-
Background The identification of mesenchymal stem cells(MSCs) have provided exciting prospects for cell-based regeneration after myocardic infraction.However cell therapy have inherent limitations such as low survival rate of transplanted cells and insufficient cell number.It is known that cell-matrix adhesion plays a key role in cell proliferation,differentiation and survival,and chemokine CXCL12 may involved in these prcesses.Transfected mesenchymalstem cells with CXCL12 for local secretion of CXCL12 and then explored CXCL12 triggered adhesion of mesenchymal stem cells to extracellular matrix proteins.Mesenchymal stem cells was transfected with CXCL12.?V and ?3 integrins content was evaluated by Western blot analysis.Cell adhesion to extracellular matrix was examined in vitro and cell prolife-ration after transplantation in vivo.Transfection of CXCL12 resulted increased CXCL12 in situ.Increased CXCL12 induced elevated adhesion to fibronectin in vitro and higher survival in vivo.CXCL12 mediated adhesion and proliferation was established by ?V and ?3 integrin subunits.Chemoattractive mechanisms are involved in adhesion processes of mesenchymal stem cells.Increased CXCL12 leads to enhanced expression of ?V and ?3 integrins,which may augment cell survival,proliferation and differrentiation.
5.Analysis on Measurement Audit in Drug Testing Laboratories during 2011-2014
Xin MAO ; Xin YU ; Jing XIAO ; Xinhua XIANG ; Hezhan ZHANG
China Pharmacist 2015;(8):1423-1425
To understand the status of testing skills and quality management in drug testing laboratories. Methods:The items, pass rate and type of participating laboratories of measurement audit were analyzed during 2011-2014. Results:The number of application items was increased year by year, more than half of which focused on the content determination, and the overall pass rate was over 80%. Conclusion:The measurement audit is important for laboratories, which should be further strengthened and standard-ized.
6.Determination of tetrandrine and fangchinoline in Qingshenjianfei Tablets by RP-HPLC
Xu-Feng SONG ; Jing YU ; Xiao-Wei HU ;
Chinese Traditional Patent Medicine 1992;0(04):-
AIM: To determine the contents of tetrandrine and fangchinoline in Qingshenjianfei Tablets by RP-HPLC. METHODS:In this method Zorbax C 18 column was used, and methanol—0.3%diethylamine (75∶25) as a mobile phase , the detection wavelength was at 242 nm. RESULTS:The recovery of tetrandrine was 103.65% and RSD was 1.59% .The recovery of fangchinoline was 97.11% and RSD was 1.91% (n=6). CONCLUSION: This method is simple,quick,reproducible and can be used for the quantitative analysis。
7.Study on detoxication of euphorbia pekinensis radix processed with vinegar on rat small intestinal crypt epithelial cells IEC-6.
Yu-Dan CAO ; Xiao-Jing YAN ; Li ZHANG ; An-Wei DING
China Journal of Chinese Materia Medica 2014;39(6):1069-1074
OBJECTIVETo compare the difference of Euphorbia Pekinensis Radix before and after being processed with vinegar in the toxicity on rat small intestinal crypt epithelial cells IEC-6, and make a preliminary study on the mechanism of detoxication of Euphorbia Pekinensis Radix processed with vinegar.
METHODWith rat small intestinal crypt epithelial cells IEC-6 as the study object, the MTT method was adopted to detect the effect of Euphorbia Pekinensis Radix before and after being processed with vinegar on IEC-6 cell activity. The morphology of cells were observed by the inverted microscope. The down-regulated mitochondrial apoptosis pathway of enterocytes caused by the vinegar processing was analyzed by using the high content screening.
RESULTCompared with the negative control group, the proliferation inhibition experiment showed that Euphorbia Pekinensis Radix showed a relatively high intestinal cell toxicity (P < 0.01). The results of HCS analysis showed that Euphorbia Pekinensis Radix could significantly reduce the cell nucleus Hoechst fluorescence intensity and mitochondria membrane (P < 0.05, P < 0.01), and increase Annexin V-FITC and PI fluorescence intensity and membrane permeability (P < 0.01, P < 0.01, P < 0.01). After being processed with vinegar, compared with Euphorbia Pekinensis Radix groups with different doses, Euphorbia Pekinensis Radix processed with vinegar could significantly decrease the cell proliferation inhibition effect on enterocytes, increase the cell nuclear Hoechst fluorescence intensity and mitochondria membrane (P < 0.05, P < 0.05), and decrease Annexin V-FITC and PI fluorescence intensity and membrane permeability (P < 0.01, P < 0.01, P < 0.05), and showed a certain dose-effect relationship.
CONCLUSIONThe vinegar processing can further reduce the toxicity of Euphorbia Pekinensis Radix on enterocytes. Its possible mechanism can decrease the effect of Euphorbia Pekinensis Radix on the permeability of IEC-6 cell membrane, so as to provide a basis for further explanation of the detoxication mechanism of Euphorbia Pekinensis Radix processed with vinegar.
Acetic Acid ; chemistry ; Animals ; Apoptosis ; drug effects ; Cell Line ; Cell Proliferation ; drug effects ; Cell Survival ; drug effects ; Chemistry, Pharmaceutical ; methods ; Drugs, Chinese Herbal ; chemistry ; toxicity ; Epithelial Cells ; cytology ; drug effects ; Euphorbia ; chemistry ; Intestine, Small ; cytology ; Rats
8.The cognitive strategies and emotion regulation in high cognitive risk to depression undergraduate students
Jing XIAO ; Lukuan HE ; Xiaoyu JIN ; Yu BAI
Chinese Journal of Behavioral Medicine and Brain Science 2013;(3):243-245
Objective To screen out the individuals at high cognitive risk by using the weakest link theory,and explore the characters of the cognitive emotion regulation.Methods 600 undergraduate students were tested with cognitive style questionnaire,general social and academic hassles scale,center for epidemiologic studies depression scale,and cognitive emotion regulation questionnaire.Results There were significant differences between individuals of high and low cognitive risk in self-blame (13.32 ± 2.12) vs (12.45 ± 2.27),rumination,catastrophizing,blaming others,positive refocusing and positive reappraising.Catastrophizing,generality,rumination,positive reappraising,stress,self-blame,and self could predict 34.2% of depression.Conclusion There are differences between individuals of high and low cognitive risk in cognitive emotion regulation.Catastrophizing,generality,rumination,positive reappraising,stress,self-blame,and self are the main predictors of depression.
9.Analysis of international literatures on geriatrics and gerontology in mainland of China
Baiyu ZHOU ; Chunbo DUAN ; Jing SHI ; Xiao TAN ; Pulin YU
Chinese Journal of Geriatrics 2013;(6):675-678
Objective To investigate the situation and development of international literatures on geriatrics and gerontology in mainland China.Methods The literatures on geriatrics and gerontology written by mainland Chinese scholars as the first author were selected from Thomson Scientific database in 1979-2011 period.Researches on basic theory,summary reports of clinical practice and reviews were collected.The quantity of published articles,article types,international cooperation research and funding programs,hospital rankings,as well as the 2011 geriatrics professional journals,thesis topic disciplines distribution and high-performance papers were analyzed by Thomson Data Analyzer software.Results From 1979 to 2011,the quantity of literatures written by Chinese scholars as the first author (not including Hong Kong,Macao and Taiwan regions) was 1927,including 1769 research articles,86 reviews,18 editorials,54 letters.Average paper was cited 7.6 times and the average number of article citation was 30.6.International cooperation research articles occupied 379 (19.7 %).Articles with research sponsorship were 734 (38.1 %),in which most subject discipline was geriatric and gerontology.Conclusions The development of geriatric medicine in China is rapid.The international scientific and technological cooperation is very extensive.It is important to further improve the world impact of geriatric medicine from China.The development of geriatric medicine in a large,cooperative,comprehensive,interdisciplinary,interagency direction,and the prospective,multicenter,cooperative study need to promote.It is extremely urgent to establish the English version of Chinese journals of geriatrics with a international influence.
10.Enhancers on the transmembrane transport of chlorogenic acid.
Jing REN ; Shengqi DENG ; Xuehua JIANG ; Lingling WANG ; Yu XIAO
Acta Pharmaceutica Sinica 2014;49(2):252-5
To investigate the influence of the difference enhancers on the transport mechanism of chlorogenic acid (CGA) across Caco-2 cells model, a RP-HPLC method was adopted to detect the concentrations of CGA. At the concentrations of 20 to 80 microg x mL(-1), the difference of absorption rate constants (K(a)) was not statistically significant. At the concentrations of 40 and 20 microg x mL(-1), the ratios of apparent permeability coefficients (P(app)) of the apical to basolateral and the basolateral to apical were 1.14 and 1.18, respectively. With the effect of enhancers K(a) and P(app) increased, the absorption half-life (T1/2) decreased. CGA passed through the Caco-2 cell membrane mainly by passive transport. It showed that monocarboxylic acid transporter (MCT) could be involved in the across membrane transport process of CGA. Borneol had no effect on the cell membrane transport processes. The order of increasing absorption of CGA caused by the enhancers was sodium lauryl sulphate > sodium taurocholate > carbomer.