1.Introduction and consideration of the anti-cancer drug evaluation strategy in Europe and America.
Jian-yuan TANG ; Li MA ; Lei ZHANG
Chinese Journal of Oncology 2008;30(10):798-800
Antineoplastic Agents
;
standards
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therapeutic use
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Clinical Trials as Topic
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Disease-Free Survival
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Europe
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Evaluation Studies as Topic
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Government Agencies
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Humans
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Maximum Tolerated Dose
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Neoplasms
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drug therapy
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Quality of Life
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Remission Induction
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Survival Rate
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Treatment Failure
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United States
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United States Food and Drug Administration
2.Problems and countermeasures existing in the teaching of military medical college education by medical licensing examination
Lei YUAN ; Yunfei CAI ; Yali WU ; Jian CHEN
Chinese Journal of Medical Education Research 2011;10(3):342-344
The result of medical licensing examination is an objective reflection of the quality of medical education. The average scores and pass rates of medical licensing examination of the military medical university including The Third Military Medical University, were under the national average levels, which made us find the problems, therefore, reflection on curriculum structure, teaching method, administration mode and continuing education should be integrated to the requirement of the medical licensing examination, so as to let the students meet the complex demand of the society, as well as the special requirement of military service.
3.Progress on hidden blood loss after hip replacement.
Lei YUAN ; Ni-Rong BAO ; Jian-Ning ZHAO
China Journal of Orthopaedics and Traumatology 2015;28(4):378-382
Total hip arthroplasty (THA) is a vital therapeutic tool for hip terminal disease. Frequently, hidden blood loss exists in the postoperation, which seriously affect the postoperative rehabilitation of patients. It is urgent need to solve the problem that how to fundamentally prevent and reduce hidden blood loss after THA. Although THA has its own operational reason in blood loss, and also relates to a variety of risk factors, the mechanism of hidden blood loss is not clear. Tranexamic acid has a significant role in preventing perioperative blood loss, and the correlation of hidden blood loss and fibrinolytic mechanism would be confirm necessarily in the future,which will produce positive significance in completing the mechanism of hidden blood loss.
Arthroplasty, Replacement, Hip
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adverse effects
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Humans
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Postoperative Hemorrhage
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etiology
4.Construction of oxalate-degrading adult bone marrow mesenchymal stem cell lines
Xuming YANG ; Jian YUAN ; Ming LEI ; Ze ZHANG
Chinese Journal of Tissue Engineering Research 2013;(27):4974-4979
BACKGROUND: High oxalic acid urine is a risk factor for stone formation. Constructing cel lines with high oxalate metabolic ability using genetic engineering and stem cel technology wil become the effective method to prevent and treat calcium oxalate stone. OBJECTIVE: To construct the adult bone marrow mesenchymal stem cel lines that can decompose the oxalic acid, through co-transfecting the oxalic acid degradation genes Frc and Oxc of oxalobacter formigenes into the normal adult bone marrow mesenchymal stem cells. METHODS: Frc and Oxc were amplified by PCR, and the eukaryotic expression vectors of pLEGFP-N1-myc-Frc and pBaBE-puro-flag-Oxc were constructed, then co-transfected into the normal adult bone marrow mesenchymal stem cells. The non-transfected bone marrow mesenchymal stem cells and the cells transfected with empty vectors were as control. Western blot was performed to detect the expression of the objective genes;the concentration of oxalate in the culture medium after transgenic was determined by ion chromatography. RESULTS AND CONCLUSION: Restriction enzyme digestion and sequencing results showed that the Frc and Oxc genes were successful y amplified, and the vectors of pLEGFP-N1-myc-Frc and pBaBE-puro-flag-Oxc were constructed. After tranfected into the bone marrow mesenchymal stem cells, the Western blot results showed that transfected bone marrow mesenchymal stem cells could stably express the target protein myc-formyl coenzyme A transferase enzyme and the flag-oxalyl coenzyme A decarboxylase; ion chromatography test results showed with the prolonging of the culture time, the concentration of oxalic acid in the human bone marrow mesenchymal stem cel culture medium transfected with target gene was decreased gradual y. While there was no target protein expression in the non-transfected human bone marrow mesenchymal stem cells as wel as the cells transfected with empty vectors. The cells had the ability of oxalate-degradation. The experiment successful y constructs the adult bone marrow mesenchymal stem cel lines that can decompose the oxalic acid, and the cel lines have the ability of oxalate-degradation and can stably express the oxalate decomposition proteins Frc and Oxc.
5.A study based on BTLA for mechanism exploration and correlation analysis of lung function decline of patients with KOA
Yuanyuan CHENG ; Jian LIU ; Lei WAN ; Yunxia FENG ; Lei LIU ; Yuan WANG
Chinese Journal of Microbiology and Immunology 2012;(12):1066-1070
Objective To observe the changes of lung parameters,the ratios of B and T lymphocyte attenuator(BTLA) and serum cytokines in patients with knee osteoarthritis (KOA),and explore possible molecular mechanism of them.Methods Forty-seven cases of knee osteoarthritis from the First Affiliated Hospital of Anhui University of Traditional Chinese Medicine from 2011 October to 2012 July were analyzed in this study.Pulmonary parameters were detected by spirometer; B and T lymphocyte attenuator(BTLA) was detected by flow cytometry ; Interleukin (IL)-1β,IL-10,matrix metalloproteinase-9 (MMP-9),tissue inhibitor of matrix metalloprotease-1 (TIMP-1) were detected by ELISA;ESR was determined by Westergren method ; hs-CRP was determined by the automatic biochemistry analyzer.Results (1) Compared with NC group,levels of FVC,FEV1,FEV1/FVC,PEF,MEF25.75,MEF50,MEF25,CD3 + BTLA+ T cell,CD4+ BTLA+ Tcell,IL-10,TIMP1 were significantly decreased,IL-1 β,MMP9 were significantly increased.(2)Correlation analysis showed FVC was negatively correlated to Lequesne MG,symptom classify quantization scores,course,MMP9,while positively related to CD3+ BTLA+T cell,IL-10,TIMP1 ;FEV1 was positively correlated to CD3 + BTLA+T cell,CD4+ BTLA+T cell,TIMP1,while negatively correlated to course ; MEF50 was positively related to CD3+BTLA+T cell,CD4+ BTLA+T cell.Conclusion While articular cartilage lesions occurred in KOA patients,the lung function was also declined.The mechanism may be associated with the declination of expression of BTLA,which can cause up-regulating of IL-1 β,MMP9 and down-regulating of IL-10,TIMP1,thus leading to immune dysfunction and abnormal immune response.Those may induce airway injuries and result in lung function decline finally.
6.Comparison of baicalin,paeoniflorin and glycyrrhetic acid in different decoctions of Huangqin Decoction
Jian-Zhen CHEN ; Gui-Yuan LV ; Xiao-Min LUO ; Lei YE ; Jian-Ming CHEN ;
Chinese Traditional Patent Medicine 1992;0(09):-
AIM: To compare the contents of baicalin,paeoniflorin and glycyrrhetic acid in the seperated and mixed decoction of Huangqin Decoction(Radix Scutellariae,Radix Paeoniae alba,Radix et Rhizoma Glycyrrhizae and Fructus Jujubae). METHODS: The contents of baicalin,paeoniflorin and glycyrrhetic acid were analyzed by HPLC.Chromatographic conditions included: Hypersil BDS C_(18) column and the mobile phase consisted of a mixture of methanol-water-phosphoric acid(47(∶)53(∶)0.2),acetonitrile-water-phosphoric acid(18(∶)82(∶)0.1) and methanol-water-phosphate buffer solution(70(∶)29(∶)1).Baicalin,paeoniflorin and glycyrrhetic acid were detected at 280 nm,230 nm and 250 nm respectively. RESULTS: The linear range of baicalin,paeoniflorin and glycyrrhetic acid were 2.88—72.00 ?g/mL,2.85—22.80 ?g/mL and 4.16—52.00 ?g/mL respectively.The contents of baicalin in the mixed decoction was higher than that in the seperated decoction.The contents of paeoniflorin and glycyrrhetic acid in the mixed decoction were almost as same as that in seperated decoction. CONCLUSION: The contents of active ingredients in the mixed and seperated decoction are different.
7.Effect of Xinfeng Capsule on Lipoprotein Metabolism of Rheumatoid Arthritis Patients.
Jian LIU ; Lei WAN ; Chuan-bing HUANG ; Yuan WANG ; Yu-zhen PAN ; Xiu-li XIE
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(9):1060-1064
OBJECTIVETo explore the effect of Xinfeng Capsule (XC) on lipoprotein metabolism of rheumatoid arthritis (RA) patients.
METHODSTotally 180 RA patients were assigned to the experimental group and the control group by random digit table, 90 in each group. Patients in the experimental group took XC (three pills each time, three times daily), while those in the control group took Methotrexate Tablet (four tablets each time, once per week). One month consisted of one therapeutic course and all patients were treated for two therapeutic courses. A healthy control group consisting of 60 patients was also set up. Changes of lipoprotein indices, clinical efficacy, lipid metabolism, joint symptoms and signs, activity indicators were observed, and correlation analyses were performed.
RESULTSCompared with the healthy control group, expression levels of prealbumin (PA), globulin (GLO), high-density lipoprotein (HDL), apolipoprotein Al (Apo-A1) were lowered in RA patients (P <0. 05, P <0. 01). Correlation analyses showed that PA was negatively correlated with joint tenderness, morning stiffness time, disease activity score (DAS-28), C-reactive protein (CRP), interleukin (IL)-6, respectively. Total protein (TP) was negatively correlated with joint tenderness. GLO was negatively correlated with joint tenderness and DAS-28. HDL was negatively correlated with erythrocyte sedimentation rate (ESR) and endothelin (ET)-1. Apo-Al was negatively correlated with joint pain; Apo-B was negatively correlated with CRP; LDL was negatively correlated with morning stiffness time (P <0. 05, P <0. 01). Compared with before treatment, expression levels of PA, HDL, Apo-A1 , Apo-B, and serum IL-10 contents increased, and expression levels of ESR, CRP, IL-6, ET-1 , joint pain, joint swelling, morning stiffness time, and DAS-28 decreased in the experimental group (P <0. 05, P <0. 01). PA increased more after treatment than before treatment in the control group (P <0. 01). There was statistical difference in joint symptoms (except joint tenderness) and activity indices (except ET-1) in the control group (P <0. 05, P <0. 01). Compared with the control group after treatment, PA and HDL increased, ET-1 and duration of morning stiffness decreased in the experimental group (all P <0. 05).
CONCLUSIONSLipoprotein metabolic disorder exists in RA patients, and it is associated with disease activity. XC could obviously improve lipoprotein metabolism and joint symptoms.
Arthritis, Rheumatoid ; drug therapy ; metabolism ; Blood Sedimentation ; C-Reactive Protein ; Capsules ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Humans ; Interleukin-10 ; Interleukin-6 ; Lipoproteins ; Lipoproteins, HDL ; metabolism ; Methotrexate
8.Case-control study on modified femoral prosthesis in reducing the incidence of patellar clunk syndrome after the initial posterior stabilized total knee arthroplasty.
Yang-Bo LIU ; Jian-Dong YUAN ; Cheng-Wei CHEN ; Chao ZHANG ; Kai CHEN ; Lei CHEN
China Journal of Orthopaedics and Traumatology 2014;27(4):278-282
OBJECTIVETo explore therapeutic effects of modified femoral prosthesis applied in the initial posterior stabilized total knee arthroplasty.
METHODSFrom April 1, 2012 to January 1, 2013, 156 patients with knee osteoarthritis underwent posterior stabilized total knee arthroplasty by the same director of orthopedic surgeon. Sixty-one patients were treated with modified femoral prosthesis, including 7 males and 54 females, with an average age of (68.34 +/- 5.41) years old; and 95 patients were treated with conventional designed femoral prosthesis, including 14 males and 81 females, with an average age of (69.92 +/- 5.11) years old. Indexes including age, body mass index, Insall-Salvati index, type of prosthesis, occurrence rate of patella click syndrome, postoperative line of force of lower extremity and postoperative function of the knee joint were observed and recorded. And American Knee Society (AKS) score was used to evaluate the clinical results.
RESULTSAll the patients were followed up, and the duration ranged from 36 to 56 weeks, with a mean of 45.31 weeks. Among patients in the conventional designed femoral prosthesis group, 7 patients had patella click syndrome, but there was no patient having patellar click syndrome in the modified femoral prosthesis group. Postoperative knee activity of patients in the modified femoral prosthesis group was (110.98 +/- 10.32) degrees, which was better than (107.05 +/- 8.61) degrees in the conventional designed femoral prosthesis group. The AKS score in the modified femoral prosthesis group was 129.79 +/- 9.63 during 21 to 28 days after operation, which was higher than 126.85 +/- 7.79 in the conventional designed femoral prosthesis group.
CONCLUSIONNew designed femoral components are effective to reduce the occurrence rate of postoperative patellar click syndrome and obtain better early functional recovery from knee surgery.
Aged ; Arthroplasty, Replacement, Knee ; adverse effects ; instrumentation ; Case-Control Studies ; Female ; Femur ; surgery ; Follow-Up Studies ; Humans ; Incidence ; Knee Joint ; surgery ; Knee Prosthesis ; Male ; Middle Aged ; Postoperative Complications ; epidemiology ; etiology ; Retrospective Studies
9.Researches on the Processing Methods and Raman Spectroscopy of Matrii Sultas Exsiccatus
Mingyang YUAN ; Fuhan LEI ; Xinhua SHI ; Long CHEN ; Chen XIA ; Jian WANG ; Yisheng ZHANG
China Pharmacist 2017;20(4):643-647
Objective:To find out the transformation reasons of the processing methods for Matrii sultas Exsiccatus through the bencaological study and the modern experimental researches.Methods:The different processing methods for Matrii sultas Exsiccatus in different periods were collected through the researches on the ancient agrostology and the modern processing standards.Furthermore,different processed products were prepared and analyzed by Raman spectroscopy.Results:There were significant differences in the processing methods for Matrii sultas Exsiccatus in the ancient herbal documents while tending to be the same in the modern processing standards.No difference was shown in the Raman spectrogram between Matrii sultas Exsiccatus and Weathered mirabilite produced by the processing methods in the ancient agrostology.The Raman characteristic peaks of the two processed products were as follows:1 153,1 132,1 102,992,648,632,621,466,450 cm-1,which were in line with the Raman spectrogram of the products produced by the modern processing methods.Conclusion:The change of processing methods for Matrii sultas Exsiccatus has certain reasons,which is worthy of further studies.
10.Correlation between CYP2J2 gene polymorphism and coronary heart disease in Chinese Han population and effects of CYP2J2 geneover-expressionon aortic smooth muscle cells of ApoE-/-mice
Rui LI ; Jian QIU ; Lei SHI ; Yuan ZHANG ; Huacheng YAN ; Yunjun RUAN ; Hua XIAO
The Journal of Practical Medicine 2015;31(23):3831-3836
Objective To investigate the relationship between CYP2J2*7 mutation(G-76T) and coronary heart disease (CHD) in Chinese Hanpopulation and to study the effects of CYP2J2 geneover-expressionon the proliferation and migrationof aortic smooth muscle cells of ApoE-/- mice. Methods CYP2J2*7 genotype was detectedin 500 patients with CHD and 478 controlsubjects by the Polymerase Chain Reaction-Restriction Frag-ment Length Polymorphism (PCR-RFLP). Culturedaortic smooth muscle cells of ApoE-/- mice were divided into control group, sham transfectiongroup and CYP2J2 over-expression group. Cell proliferation and migration were investigated after CYP2J2 over-expressionby MTS and Transwell assay. Results The frequency of CYP2J2*7 in CHD group was significantly higher than that incontrol group (10.00% vs. 6.49%, P = 0.046). Same is the case in female cases(P = 0.026). Compared with these of aortic smooth muscle cells incontrol group and sham trans-fectiongroup, the cell proliferation in 24, 48, 72 h, and the cell migration in 48 h after CYP2J2 over-expression in CYP2J2 group were significantly suppressed. Conclusions CYP2J2*7 mutation might increase the risk of CHD in Chinese Han population. CYP2J2 over-expression can suppress the proliferation and migration of aortic smooth muscle cells and CYP2J2 might have the effect of anti-atherosclerosis.