1.Effect of NGX6 Gene with 5-Fu on the Apoptosis of Colon Cancer Cells
Ping LIAN ; Qin GUO ; Ya PENG ; Zhiming XIAO ; Fen LIU ; Xiaoya WANG ; Shourong SHEN ; Guiyuan LI
Chinese Journal of Clinical Oncology 2009;36(21):1239-1242,1247
Objective: To evaluate the effect of NGX6 with 5-Fu on the apoptosis of colon cancer cells. Methods: The NGX6-transfected HT-29 cell line with 5-Fu was used in the test group. HT-29 cell line with 5-Fu and PDTC was used in the control group. The expression of NF-κB was detected by EMSA. The proliferation of HT-29 cell line was assayed by MTT. The effect of NGX6 on the apoptosis was detected by FCM. HT-29 cells were double-stained by PI/Annexin-V and AO/EB and observed by fluorescence microscopy. Results: The expression of NF-κB was inhibited in NGX6 transfected colon carcinoma cell group and in colon carcino-ma cell group treated with PDTC. Treatment with the chemopreventive compounds 5-Fu and PDTC resulted in different responses in the effects of anti-proliferation and induced apoptosis of colon carcinoma cells. There was no significant difference in apoptosis between NGX6-transfected HT-29 call line with 5-Fu and the cells in the control group. NGX6 gene enhanced the effect of 5-Fu on the proliferation and apoptosis of colon carcino-ma cells. Conclusion: NGX6 gene can induce apoptosis and inhibit the proliferation of colon carcinoma cells. NGX6 gene can enhance the effect of 5-Fu on the proliferation and apoptosis of colon carcinoma cells through NF-κB pathway.
2.Restaurant emissions removal by a biofilter with immobilized bacteria
Jian-Yu MIAO ; Lian-Ying ZHENG ; Xiao-Fen GUO
Journal of Zhejiang University. Science. B 2005;6B(5):433-437
Pseudomonas sp. ZD8 isolated from contaminated soil was immobilized with platane wood chips to produce packing materials for a novel biofilter system utilized to control restaurant emissions. The effects of operational parameters including retention time, temperature, and inlet gas concentration on the removal efficiency and elimination capacity were evaluated. Criteria necessary for a scale-up design of the biofilter was established. High and satisfactory level of rapeseed oil smoke removal efficiency was maintained during operation and the optimal retention time was found to be 18 s corresponding to smoke removal efficiency greater than 97%. The optimal inlet rapeseed oil smoke loading was 120 mg/(m3.h) at the upper end of the linear correlation between inlet loading and elimination capacity.
3.Restaurant emissions removal by a biofilter with immobilized bacteria.
Jian-Yu MIAO ; Lian-Ying ZHENG ; Xiao-Fen GUO
Journal of Zhejiang University. Science. B 2005;6(5):433-437
Pseudomonas sp. ZD8 isolated from contaminated soil was immobilized with platane wood chips to produce packing materials for a novel biofilter system utilized to control restaurant emissions. The effects of operational parameters including retention time, temperature, and inlet gas concentration on the removal efficiency and elimination capacity were evaluated. Criteria necessary for a scale-up design of the biofilter was established. High and satisfactory level of rapeseed oil smoke removal efficiency was maintained during operation and the optimal retention time was found to be 18 s corresponding to smoke removal efficiency greater than 97%. The optimal inlet rapeseed oil smoke loading was 120 mg/(m(3) x h) at the upper end of the linear correlation between inlet loading and elimination capacity.
Air Pollutants
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isolation & purification
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Biodegradation, Environmental
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Cells, Immobilized
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Filtration
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instrumentation
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methods
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Microscopy, Electron, Scanning
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Oils
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metabolism
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Pseudomonas
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metabolism
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ultrastructure
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Restaurants
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Smoke
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Temperature
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Time Factors
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Waste Management
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instrumentation
;
methods
4.Study on influential factors and nursing countermeasures of compliance of taking medicine in patients with hypertension
Ying-Hua HUANG ; Fen-Lian GUO ; Xue-Yun CHEN
Chinese Journal of Modern Nursing 2009;15(35):3727-3729
Objective To study the influential factors and corresponding nursing countermeasures of medication compliance in patients with hypertension. Methods The drugs used of 680 patients with primary hypertension recorded in our hospital were investigated, the influential factors of compliance of taking medicine were analyzed. Results 328 patients with good compliance of taking medicine were observed, the compliance rate was 48.24%. influential factors includes gender, age, education level, family economy, the medical history of friends and family, hypertension knowledge, The degree of rising of blood pressure, adverse drug reaction,expenses of drugs and so on. Condusions There were varieties kinds of influential factors in compliance of taking medicine of patients with hypertension, and the key to improve the rate of pharmacological treatment is to take active and personalized nursing measures.
5.Effect and mechanism of recombinant hirudin on fibrinolysis.
Ming LI ; Rong-jun ZHANG ; Guo-xian CAO ; Wei-xing WAN ; Lian-fen ZHANG ; Jian JIN
Acta Pharmaceutica Sinica 2006;41(9):814-818
AIMTo study the effect of recombinant hirudin (rH) on tPA-induced fibrinolysis and the possible mechanism of its action.
METHODSThe effect of rH on thrombin-fibrin complex (Th-Fn) was detected by 99mTc labeled rH. In the in vitro clot lysis, tPA as plasminogen activator, and recalcified plasma as plasminogen resource were used to study the influence of rH on fibrinolysis by detecting TAFIa, D-Dimer and FXIII.
RESULTSIn a canine model of femoral artery thrombosis, a clear radioactivity strip was imaged in 30 - 60 min on a part image, and the femoral vein thrombosis developed at 30 min. rH efficiently inhibited clot regeneration. Addition of TM could inhibit clot lysis obviously, and CPI could shorten the delay of clot lysis which due to TAFIa. There was a dose-dependent relationship with TM concentration and TAFI activation. FXIII activation was inhibited by low concentration of rH ( < or = 0.2 u x mL(-1)), and the level of fibrinolysis product, D-Dimer, increased.
CONCLUSIONrH could inhibit the thrombin binding to fibrin. rH inhibited the activation of TAFI and FXIII by combining with thrombin which resulted in enhancement of thrombolysis.
Animals ; Blood Coagulation ; drug effects ; Carboxypeptidase B2 ; metabolism ; Carboxypeptidases ; antagonists & inhibitors ; Dogs ; Factor XIII ; metabolism ; Femoral Artery ; Femoral Vein ; Fibrinolysis ; drug effects ; Fibrinolytic Agents ; pharmacology ; Hirudins ; genetics ; pharmacology ; Male ; Plant Proteins ; pharmacology ; Protease Inhibitors ; Recombinant Proteins ; pharmacology ; Thrombomodulin ; metabolism ; Thrombosis ; metabolism ; Venous Thrombosis ; metabolism
6.Development and clinical application of the tractor for the fracture reduction.
Guo-jun ZHANG ; Li-min JIA ; Pei-de FEN ; Lian-gen WU ; Hui-jun ZHANG
Chinese Journal of Medical Instrumentation 2002;26(4):275-278
This paper expounds how the tractor for the fracture reduction works. The clinical results show that the traction apparatus is a labour-saving and time-saving orthopedic device with simple operation and few suffering to patients.
Arm Injuries
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diagnostic imaging
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surgery
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Equipment Design
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Fracture Fixation
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instrumentation
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methods
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Fractures, Bone
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diagnostic imaging
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surgery
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Humans
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Leg Injuries
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diagnostic imaging
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surgery
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Radiography
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Traction
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instrumentation
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methods
7.Influence of temperature on active constituents of Qianghuo (Notopterygium) during micronization
Rui XIANG ; Yu-Rong WANG ; Lian-Wei YANG ; Guo-Sheng GE ; Yu-Fen YANG
Journal of Beijing University of Traditional Chinese Medicine 2010;33(2):123-126
Objective To investigate the influence of temperature on active constituents of the superfines of Qianghuo (Notopterygium). Methods Qianghuo was micronized by using vibromill at room temperature and low temperature (-10 ℃) respectively. The content of volatile oil in the superfines prepared at different temperature was detected, and the content of ferulic acid was determined by using HPLC.Results The content of ferulic acid was not lost after micronized by vibromill at room temperature, but the content of volatile oil was lost, which could be avoided by the micronization at low temperature (-10 ℃). Conclusion The vibromill at low temperature is proved initially that it is suitable for the preparation of superfines of Qianghuo.
8.Effects of combined amiodarone and antiarrhythmic peptide use on the cardiac gap junctions and incidence of induced ventricular arrhythmias in healed myocardial infarction rabbit models
Lian-Dong LI ; Cun-Tai ZHANG ; Lei RUAN ; Ming-Ke NI ; Yan FANG ; Guo-Qiang WANG ; Xing-Fen WANG
Chinese Journal of Cardiology 2010;38(12):1102-1107
Objective The aim of this study is to observe the effect of combined amiodarone and antiarrhythmic peptide (AAP10) use on the incidence of induced ventricular arrhythmias in healed myocardial infarction (MI) rabbits. Methods Twenty Japanese rabbits underwent thoracotomy without coronary artery ligation( Sham, group A) ,the middle left circumflex branch were ligated to induce MI in 180 Japanese rabbits. Eight weeks after operation, 124 rabbits survived MI operation and were divided into four groups: control group (group B, n =31 ), amiodarone group (group C, n =31 ), AAP10 group (group D,n =31 ) and amiodarone plus AAP10 group ( group E, n =31 ). The A and B and D groups were treated with saline 2 ml/d, the C and E groups were treated with 2 ml saline containing amiodarone 100 mg· kg-1·d-1. All rabbits were examined by echocardiogram at 12 weeks after operation, then anesthetized by sodium barbital, the left wedge ventricular preparations were cannulated and artery perfused by Tyrode's solution in vitro in the absence (Group A, B and C) and presence of AAP10 (500 nmol/L, Group D and E). The volume electrocardiogram, QT Interval, QRS interval, effective refractory period (ERP), the T-peak to Tend interval ( Tp-e ), and ventricular tachycardia episodes induced by programmed stimulation were recorded.The Tp-e/QT ratio was calculated. After perfusion, gap junctions protein connexin 43 (Cx43) expression was detected by Western blot and immunofluorescence. Results The incidence of induced ventricular tachycardia episodes of group A, B, C, D, E was 0, 62. 5%, 26. 9%, 40.0%, 22. 2% respectively. The incidence of induced ventricular tachycardia episodes of group E was less than group B. The Tp-e/QT ratio in group B, C, D were greater than in group A. The Tp-e/QT ratio of group E was less than group B. The myocardial Cx43 in the group B was down-regulated and disorganized compared to group A, up-regulated in group C and E compared to group B, up-regulated in group E compared to group D. The Cx43 in the heart of group D and E were well organized than in group B and C. Conclusions The artery perfused rabbits wedge preparations with healed myocardial infarction with high incidence of induced ventricular tachycardia episodes are good platform for ventricular arrhythmias research. Combined amiodarone and AAP10 use could decrease the Tp-e/QT ratio and the incidence of induced ventricular tachycardia episodes. Amiodarone and AAP10have synergistic effects on upregulating Cx43 and preventing ventricular arrhythmias in this rabbit model of healed myocardial infarction.
9.Effect of standardized self-management education on the effect of diabetes patients outside the hospital treatment by continuous subcutaneous insulin pump insulin
Qiu-Ying DENG ; Feng-Di LI ; Guo-Xiang LIAN ; Shao-Fen ZHANG
Chinese Journal of Modern Nursing 2012;18(5):520-523
Objective To investigate standardized self-management education for diabetics outside the hospital treatment by continuous subcutaneous insulin pump insulin (CSⅡ) effect.Methods The 51 patients who received hospital stay treatment by continuous subcutaneous insulin pump insulin and post-discharge treatment by continuous subcutaneous insulin pump insulin were selected as research subjects,and randomly divided into two groups:observation group of 26 patients and the control group of 25 patients,both groups received education in the hospital and after discharge follow-up of education; observation group was to take standardized self-management education,control group to take the traditional education method.Knowledge master CSII therapy in the two groups of patients before discharge was compared.Biochemical indicators,body mass index and the abnormal situation 3 months post-discharge was compared in the two groups.Results Glycosylated hemoglobin,total cholesterol,triglycerides,body mass index were (5.81 ±0.36)%,(3.62 ±0.48)mmol/L,(1.61 ±0.46)mmol/L and (22.91 ±2.33) kg/m2,respectively,those in the control group were ( 6.57 ± 1.34 ) %,( 4.50 ± 0.99 ) mmol/L,(1.94 ±0.74)mmol/L,and (24.20 ±2.95) kg/m2,respectively,and the differences were significant (t=2.78,4.06,1.92,1.74,respectively; P < 0.05).7.6% hypoglycemia,11.5% skin inflammation in the infusion site,15.4% plugging,and 15.4% tape loose occurred in the observation group during the pump period,and those in the control group were 32.0%,64.0%,48.0%,72.0%,respectively; the incident rates in the observation group were lower than the control group,and the difference was significant (x2=4.78,15.01,6.29,16.65,respectively; P <0.05).Conclusions The hospital CSII-treated diabetes,standardized self-management education is better than traditional education methods; it is worth in clinical practice.
10.Prophylactic effect of TLR5 agonist flagellin on acute graft versus host disease after allogeneic hematopoietic stem cell transplantation and its mechanism.
Xu-Dong GONG ; Liang-Ming MA ; Lei ZHU ; Hui-Min GUO ; Lian-Sheng REN ; Rui-Rui REN ; Hua-Ping ZHANG ; Fen WEI ; Yan-Yan NIU
Journal of Experimental Hematology 2012;20(4):965-970
This study was aimed to investigate the prophylactic effect of Toll like receptor (TLR)5 agonist flagellin on acute graft versus host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and its possible mechanism. The animal model with allo-HSCT aGVHD was established by using purebred mice (male mouse C57BL/6 as donor, female mouse BALB/c as recipient) with complete-unidentical major histocompatibility antigen. The recipient mice were randomly divided into 3 groups: group 1 in which mice were injected with high purity (95%) flagellin before and after allo-HSCT respectively, group 2 in which mice received allo-HSCT without injection of flagellin, group 3 in which mice were radiated alone. The aGVHD features of mice in group 1 and 2 were observed and compared. The results showed that the typical symptoms of aGVHD appeared in transplanted mice. The death peak of mice in group 2 appeared at day 4-5 after transplantation. The aGVHD symptoms were obviously alleviated and the mean survival time was prolonged significantly in mice group 1 as compared with mice in group 2 (P < 0.05). The comparison of WBC count in peripheral blood of mice in 3 groups before transplantation showed no significant difference (P > 0.05), while WBC count of mice in group 1 and 2 showed the significant difference at days 14 and 21 after transplantation (P < 0.05). The pathological appearances of aGVHD in mice of group 1 were obviously reduced as compared with mice in group 2. The flow cytometric detection of Treg cell/CD4(+) T cell levels at different time before and after transplantation demonstrated that the Treg cell level in mice of group 1 at weeks 2-4 after transplantation significantly increased as compared with mice in group 2 (P < 0.05). It is concluded that flagellin can effectively prevent the aGVHD occurrence after allo-HSCT, reduce the symptoms and pathological changes of aGVHD, obviously prolong mean survival time of mice in group 1. The mechanism of flagellin effect may be associated to increase of Treg cell level in mice after allo-HSCT.
Animals
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Female
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Flagellin
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therapeutic use
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Graft vs Host Disease
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prevention & control
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Hematopoietic Stem Cell Transplantation
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adverse effects
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methods
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Male
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Mice
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Mice, Inbred BALB C
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Mice, Inbred C57BL
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T-Lymphocytes, Regulatory
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Toll-Like Receptor 6
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agonists
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Transplantation, Homologous