2.Progress in the Study of Chemokine CXCL9/Mig
Hui-Li LU ; Mei YU ; Wei HAN ;
China Biotechnology 2006;0(10):-
Chemokine CXCL9/Mig (monokine induced by IFN-?) belongs to the subfamily of chemotactic cytokines known as CXC-chemokines. In vivo CXCL9 is mainly induced by IFN-? in macrophages and primary glial cells. In vitro, CXCL9 can be secreted by cells such as macrophages, microvascular endothelial cells and neutrophils, in response to the synergy of IFN-? and TLR(toll-like receptor) ligands. CXCL9 is a chemoattractant for activated T lymphocytes, tumor-infiltrating T-lymphocytes, but not for neutrophils or monocytes. The receptor specific for CXCL9 is CXCR3, a G protein-coupled protein which has seven transmembrane domain. The structure and the chemical characterization of CXCL9, as well as its effects on autoimmune deseases, allograft rejection, cancer therapy were reviewed.
3.Metastasis correlation factors expression and NF-?B activation in colorectal carcinoma
Kun YU ; Mei HAN ; Jinkun WEN ; Binghui LI
Basic & Clinical Medicine 2006;0(04):-
Objective To investigate the relationship between NF-?B activation and the expression of metastasis correlation factors.Methods The expression of NF-?B,COX-2,ICAM-1,VCAM-1 and MMP9 in colorectal cancer and normal tissues was detected using Western blotting.Results(1)The expression level of NF-?B was higher in cancer tissues than that in normal tissues(P
4.Study on treating fungal keratitis of rabbit eyes using collagen shield delivering fluconazole eye drops made by centrifugal method HAN
Xiao-mei HAN ; Jin WANG ; Yu-lin ZHU
Chinese Journal of Primary Medicine and Pharmacy 2009;16(z2):1-2
Objective To evaluate the effect of collagen shield delivering fluconazole eye drops made by centrifugal method on treating fungal keratitis of rabbit eyes.Methods Using centrifugal method to make corneal collagen shield,after soaked with fluconazole eye drops,the collagen shields were used to treat fungal keratitis of rabbit eyes.Results The healing focus time of collagen shield delivering fluconazole eye drops group was average 11 days,the healing focus time of only delivering fluconazole eye drops group was average 18 days.The cure rate and effective rate of 2 groups were 78.94%,63.15% and 92.10%,78.94%,there were significance between 2 groups(P<0.05).Conclusion It was innovation for corneal collagen shield delivering fluconazole eye drops made by centrifugal method to cure fungal keratitis,which had broad development foreground.
5.Passive Smoking in Beijing Public Places
Yu-Qing LI ; Xiu-Rong LIU ; Mei HAN ;
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(05):-
0.05).92.7%of the objects knew that passive smoking was harmful.71.9%knew that passive smoking made people suffering from cardiopathy more possibly.74.9%knew that the wife whose husband smoked were easier to catch lung cancer.And 84.4%knew that the child whose parent s smoked more possibly took asthma or respiration disease. The correct rates of the four knowledge points were different among different gender and the degree of education,which was higher in female than in male,and higher in high education degree than in the other(P
6.Influence of Dexamethasone on Ultrastructure of Renal Cells in Rats with Endotoxemia
mei, HAN ; dong-juan, LIU ; yu-bin, WU
Journal of Applied Clinical Pediatrics 2004;0(12):-
Objective To explore the mechanism of endotoxemic injury in kidneys and protective effect of dexamethasone on renal cells.Methods Fifty-four eighteen-day Wistar rats were divided into control,endotoxemic(LPS)and dexamethasone groups randomly,18 rats in every group.Rats in control group were injected intraperitoneally with the same volume(0.1 mL)of 9 g/L sodium chloride as other two groups.All rats in LPS group were injected with a single bolus of LPS(4 mg/kg).The rats in dexamethasone group received LPS(4 mg/kg)and dexamethasone(5 mg/kg).Then they were sacrificed at 6,24 and 72 hours after injection.The ultrastructure was observed by electron microscope.Results In LPS group,glomerular basement membrane became thick and foot processes had coalescent partly,mitochondrial cristae became dissolved in proximal tubular endothelial cells and microvillus of distal tubular diminished at 6,24 hours after LPS injection.The morphological changes of apoptosis were found in the proximal tubular at 72 hours after LPS injection.These changes were in dexamethasone group.Conclusion Apoptosis participates in LPS injury of kidneys and dexamethasone have protective effect on injuried renal cells.
8.Chinese medicine clinical trial protocol design and report specifications.
Mei HAN ; Guo-Yan YANG ; Yu-Yi WANG ; Jian-Ping LIU
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(8):907-910
Clinical trial protocol is the document that illustrates the background of a clinical trial, theoretic basis, objective, design, methods, and organization, as well as statistical calculating, implement, and conditions for completion. Clinical trial protocol is the basic measure for ensuring the validity of scientific results and reducing bias. In order to optimize the design of clinical trial protocol, we generalize main problems in Chinese medicine clinical trials, key points of clinical trial protocol, as well as report standards.
Clinical Trials as Topic
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Drugs, Chinese Herbal
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therapeutic use
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Humans
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Medicine, Chinese Traditional
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Research Design
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standards
9.lnhibition of Radix lsatidis and its constituents indigo and indirubin on major organic anion transporters Oat1, Oat2 and Oat3 in mouse kidneys
Jinfeng QL ; Chen SUN ; Yonghui WANG ; Wenhao YU ; Jian HAN ; Mei LLN ; Na ZHANG
Chinese Journal of Pharmacology and Toxicology 2014;(6):878-886
OBJECTlVE To investigate the inhibition of Radix lsatidis and its major constituents indigo and indirubin on three principal subtypes of organic anion transporters ( OATs) , Oat1, Oat2 and Oat3 in vivo in mice. METHODS Granules of Radix lsatidis ( GRl) 0.615 and 2.46 g·kg-1 , decoction of Radix lsatidis ( DRl) 1.6 and 6.4 g·kg-1 , indigo 0.008 and 0.64 mg·kg-1 and indirubin 0.0192 and 1.536 mg·kg-1 were ig given to the NlH mice (60 mice per group), twice a day, for 5 d while four control groups were set up, including vehicle of water, 0.5%sodium carboxymethyl cellulose ( CMC) , positive control probe-necid (0.05 g·kg-1) and additives of sucrose plus dextrin (1.5 g·kg-1 each) groups. After the last dosing of the test samples, para-aminohippuric acid ( PAH) clearance test was conducted. All the mice were iv given PAH 0.03 g·kg-1 and 1, 2.5, 5, 7.5, 10 and 20 min later before 10 mice per group were euthanized to collect whole blood and the kidneys were quickly removed. Each right kidney was homoge-nized to analyze the PAH accumulations and each left kidney to extract total mRNA for analysis of Oat1, Oat2 and Oat3 gene expressions using quantitative real-time PCR. The concentrations of PAH in sera and in kidney homogenates were determined by the method of Kiguchi. Major pharmacokinetic parame-ters of PAH in sera were calculated by pharmacokinetic software ( DAS2.0) . PAH uptake test for kidney slices was performed on another group of NlH mice according to the method of Nakakariya. RESULTS There was no significant difference between water control group and 0.5%CMC group in all the examined items. Compared with the vehicle control groups ( water and 0. 5%CMC group ) , elimination half time ( t1/2β) of PAH in GRl 2.46 g·kg-1 ,indigo 0.64 mg·kg-1 and indirubin 1.536 mg·kg-1 groups was signifi-cantly prolonged (P<0.05), the total clearance (Cl) and volume of distribution (Vd) were obviously reduced ( P<0.01) and the area under the curve ( AUC0-20 min ) of PAH in all the tested groups was signifi-cantly increased ( P<0.01) . AUC0-20 min obtained from renal PAH accumulations within the checked time was significantly higher ( P<0.05, P<0.01) than in the vehicle control group. But there was in no signifi-cant difference between all the study groups in kidney-to-plasma AUC ratios. PAH uptake results by kidney slices were significantly lower ( P<0. 05, P<0. 01 ) than in vehicle control group in every two dosages of all the four samples tested. Compared with vehicle control group, the mRNA expressions of Oat1, Oat2 and Oat3 were obviously ( P<0.05, P<0.01) and abnormally regulated in the groups of GRl 2.46 g·kg-1, DRl 6.4 g·kg-1, indigo 0.64 mg·kg-1 and indirubin 1.536 mg·kg-1. CONCLUSlON The renal Oat1, Oat2 and Oat3 of mice are significantly inhibited by GRl, DRl, indigo and indirubin. The inhibitory function of Radix lsatidis probably stems from indigo and indirubin contained in it.
10.Comparative study of warfarin and aspirin for stroke prevention in elderly patients with atrial fibrillation.
Wei HAN ; Dan-tong SHEN ; Yu-mei WANG
Journal of Southern Medical University 2006;26(6):851-855
OBJECTIVETo analyze current stroke prevention measures for elderly patients with atrial fibrillation.
METHODSA retrospective analysis was conducted of the clinical records of elderly patients with atrial fibrillation treated in our hospital within the recent 5 years. The distribution of high risk factors for different age levels was studied, and the incidence of stroke and complications such as hemorrhage were compared between patients treated with warfarin and aspirin therapy.
RESULTSCompared with patients of 65 to 75 years old, the incidence of complications with other high risk factors was increased in advanced age group (over 75 years). Of these patients, 19.0% were treated with warfarin and 73.4% with aspirin. Compared with the aspirin group, stroke incidence was decreased significantly in warfarin group, which had simultaneously increased nonfatal hemorrhage.
CONCLUSIONWarfarin can be more effective than aspirin for stroke prevention in elderly patients with atrial fibrillation, but in clinical practice, the usage rate of warfarin still remains low with insufficient monitoring.
Aged ; Anticoagulants ; therapeutic use ; Aspirin ; therapeutic use ; Atrial Fibrillation ; complications ; drug therapy ; China ; epidemiology ; Female ; Humans ; Male ; Retrospective Studies ; Stroke ; complications ; epidemiology ; prevention & control ; Treatment Outcome ; Warfarin ; therapeutic use