1.The thermal effect of cool-tip radiofrequency generator on liver tissue of rabbit
Bin MEI ; Xiaoping CHEN ; Chun WAN ; Jie LI
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(12):-
liver cells. The thermosensitivity of the normal rabbit hepatocyte was higher than that of biliary epithelial cells to radiofrequency ablation. Apoptosis was correlated to the thermal effect induced by RFA.
2.Human Resource Status for Rehabilitation Coordinator and Street Administrator of Disability Community Rehabilitation in Shanghai
Wan-chun CHEN ; Min JI ; Heng LI ; Jie XU ; Jianping YANG ; Jinghua WU ; Jun LV
Chinese Journal of Rehabilitation Theory and Practice 2012;18(12):1184-1186
Objective To understand the human resource status of the community rehabilitation management in Shanghai and provide evidence for the construction of this human resource. Methods Census institutions of community rehabilitation management in Shanghai were investigated with self-questionnaire. Results Shanghai has initially established personnel of community rehabilitation management,which contains rehabilitation coordinators and street community administrator. However, the structure and number of the personnel has yet to be improved. Conclusion Personnel building must focused on optimizing the personnel structure of rehabilitation coordinator, moderately expanding the street community administrators, filling the community rehabilitation service gap between city and urban in next stage.
3.N-myristoyltransferase: a novel antifungal target.
Jie ZHU ; Chun-Quan SHENG ; Wan-Nian ZHANG
Acta Pharmaceutica Sinica 2005;40(9):775-781
Acyltransferases
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antagonists & inhibitors
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chemistry
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Animals
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Antifungal Agents
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chemical synthesis
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pharmacology
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Benzofurans
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chemical synthesis
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pharmacology
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Benzothiazoles
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chemical synthesis
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pharmacology
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Drug Design
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Enzyme Inhibitors
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chemical synthesis
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pharmacology
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Fungi
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drug effects
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enzymology
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Imidazoles
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chemical synthesis
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pharmacology
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Molecular Structure
4.Effect and mechanism of Guhong injection against cerebral ischemia reperfusion injury.
Ming-chun SHU ; Hai-tong WAN ; Hui-fen ZHOU ; Jie-hong YANG ; Tao ZHAO ; Wei FU ; Yu HE
China Journal of Chinese Materia Medica 2014;39(24):4829-4833
To explore the effect and mechanism of Guhong injection against cerebral ischemia reperfusion injury, SD rats were randomly divided into the sham-operated group, the model group, the nimodipine group, and high, medium and low-dose Guhong injection groups, with 10 rats in each group. The middle cerebral artery embolization (MCAO) model was established to observe neurological deficit symptoms, infarct volume, SOD activity, MDA content, GSH-Px and CAT activity in rats, as well as the contents of t-PA, PAI, TXB2 and 6-keto-PGF1α in serum. The results showed that Guhong injection could obviously promote the recovery of neurological deficit symptoms, narrow the brain infarct volume in rats after surgery, significantlyincrease the activities of SOD, GSH-Px and CAT and decrease the content of MDA. Meanwhile, it also could obviously increase the contents of t-PA and 6-keto-PGF1α and decrease the contents of PAI and TXB2 in serum, indicating that Guhong injection have better antioxidant and antithrombus effects, as well as a significant protective effect against cerebral ischemia reperfusion injury in rats.
Animals
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Antioxidants
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pharmacology
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Brain Ischemia
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drug therapy
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Catalase
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metabolism
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Drugs, Chinese Herbal
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pharmacology
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Injections
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Male
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Malondialdehyde
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metabolism
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Random Allocation
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Rats
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Rats, Sprague-Dawley
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Reperfusion Injury
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drug therapy
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Superoxide Dismutase
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metabolism
5.Apoptosis and hormonal milieu in ductal system of normal prostate and benign prostatic hyperplasia
XIA SHU-JIE ; XU CHUN-XIAO ; TANG XIAO-DA ; WANG WAN-ZHONG ; DU DE-LI
Asian Journal of Andrology 2001;3(2):131-134
Aim: To study theapoptotic rate (AR) and the androgen and estrogen milieu in the proximal and distal ductal sys tems of prostate, in order to help exploring the effects of these factors on prostatic growth and the pathogenesis of be nign prostatic hypertrophy (BPH). Methods: The proximal and distal ends of the ductal system were incised from 20 normal prostate as well as the hypertrophic prostate tissue from 20 patients with BPH. The AR was determined by the DNA end-labeling method and dihydrotestosterone (DHT) and estrodiol (E2), by radioimmunoassay. Results:There was no significant difference in DHT and E2 density between the proximal and distal ends of the ductal systems in normal prostate. E2 appeared to be higher in BPH than in normal prostatic tissues, but the difference was statistically in significant. In normal prostatic tissue, the AR was significantly higher in the distal than in the proximal ends of the ductal system ( P < 0.05), while the AR of the proximal ends was significantly higher ( P < 0.01) than that in the BPH tissue. No significant correlation was noted between the DHT and E2 density and the AR both in the normal prostate and BPH tissues. Conclusion: The paper is the first time describing a difference in AR in different regions of the ductal system of normal prostate, while the hormonal milieu is similar, indicating a functional inhomogeneity of these regions. A low AR in the proximal duct, where BPH originates, and an even lower AR in the BPH tissue, sug gesting the participation of apoptosis in the BPH pathogenesis.
6.PPARγagonists against respiratory syncytial virus infection in vitro study
Chun-Jie WAN ; Lin DONG ; Jie LIN ; Xiao-Fang CHEN
Chinese Journal of Experimental and Clinical Virology 2011;25(6):480-482
Objective To search the effect of PPARγ agonists for infection of RSV in vitro.Methods The CPE of Hep-2 and A549 cells induced by RSV infection were observed.The effects of 15d-PGJ2 and rosiglitazone on change of CPE of A549 cells induced by RSV infection for 48 h were observed,too.MTT assay was used to detect the rate of viral suppression,and the protective effects of 15d-PGJ2 and rosiglitazone on A549 cells induced by RSV infection for 48 h.Results A549 cells interfered by 15d-PGJ2 (5 -25 μmol/L) and rosiglitazone (10 -50 μmol/L) did not show obvious CPE,MTT assay also showed that the survival rate of A549 cells induced by RSV infection with PPARγ agonists added,was significantly higher than that of RSV infection without PPARγ agonists added,the difference was statistically significant (P < 0.01 ),but comparision between the two drugs showed no statistical significance.The optimal concentrations of 15d-PGJ2 and rosiglitazone were 5 μmol/L and 10 μ mol/L respectively.Conclusions PPARγ agonist can reduce the CPE of A549 cells after RSV infection and improve the survival rate of A549 cells.PPARγ agonist can counteract the infection of RSV in A549 cells.
7.Study on change rule of 6 ester-type alkaloids in process of Heishunpian.
Yun-wei WANG ; Lian ZHONG ; Xin-yi LI ; Min XU ; Shi-long YANG ; Lang LI ; Chun-jie WU ; Qin-wan HUANG
China Journal of Chinese Materia Medica 2015;40(8):1473-1478
To study the variation of six ester-type alkaloids and characteristic fingerprints in the process from Radix Aconite Lateralis to Heishunpian and lay a foundation for the study of the processing principle of Heishunpian, HPLC. analysis was performed on a Phenomenex Gemini C18 (4.6 mm x 250 mm, 5 microm) with acetonitrile and 40 mmol x L(-1) ammonium acetate (adjusted to pH 10 with concentrated ammonia water) as mobile phase. The detection wavelength was set at 235 nm. The flow rate was set at 0.8 mL x min(-1) and the injection volume was 10-20 microL. Six ester-type alkaloids were determined and characteristic fingerprints of the process were established. As the process continues, the contents of diester diterpene alkaloids were decreased step by step, while the contents varia tion of monoester diterpene alkaloids were not obvious. Each sample showed significant difference in characteristic fingerprints. With the exception of 6 known monoester diterpene alkaloids and diester diterpene alkaloids, 13 peaks were marked in the characteristic fingerprints, of which the total change rule of the other 7 unknown peaks were similar with 3 diester diterpene alkaloids. The established method is accurate, reliable and repeatable, and can provide reference for revealing change rule of index components and illuminating processing principle in the process of Heishunpian.
Aconitine
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chemistry
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Aconitum
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chemistry
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Alkaloids
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chemistry
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Chemistry, Pharmaceutical
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methods
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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Esters
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chemistry
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Molecular Structure
8.Evaluation on the design and application effect of pure water analysis system of medical proton and heavy ion accelerator
Wan-Hong LI ; Song-Hai WU ; Chun-Jie ZHU
China Medical Equipment 2018;15(5):21-25
Objective: To design an online pure water analysis system based on the proton and heavy ion accelerator (IONTRIS system) in Shanghai proton and heavy ion center (SPHIC), and to evaluate its application effect by operating data statistics. Methods: The system used the control system of Siemens S7-300 PLC to collect online data from sensors of pure water system. Analyzing the operation rules and setting the limiting value of alarm, and using WINCC software to develop monitoring and analysis system of central computer so as to real-time operate online data. The application effect of the system was evaluated by comparing the cost of one month consumables between before and after the system was applied. Results: After the system was applied, the real-time monitoring of pure water system was realized, and the efficiency of the consumables was enhanced. Conclusion: The application of the pure water analysis system has a good effect on the operation efficiency of the pure water system.
9.Development Trend of Medical Facilities' Data Analysis and Decision in Operation and Maintenance
Chinese Hospital Management 2018;38(5):78-80
In order to clarify the research directions of medical facilities' data analysis and decision in operation and maintenance management,the paper illustrates current functions of medical facilities operation and maintenance from the following aspects:building hospital intelligent management,power supply and distribution system's safety,energy consumption's optimization,network's optimization and complex medical equipment's operation guarantee.The problems of data analysis and decision about hospital facilities' operation and maintenance management are summarized.Four kinds of data decision models are put forward,including risk identification,health assessment of equipment,faults prediction and diagnosis,and management optimization.These methods could provide reference for the development of medical facilities' operation and maintenance.
10.The prevention and emergency optimization of shutdown fault of cooling water system of proton and heavy ion accelerator
China Medical Equipment 2017;14(10):19-22
Objective:To research the prevention and emergency optimization of shutdown fault of cooling water system of proton and heavy ion accelerator, and elucidate their application effect through analyzed the fault of cooling water system of accelerator (IONTRIS) in SPHIC.Methods: Through analyzed the reasons of shutdown faults, the predictive diagnosis and reconstruction scheme of shutdown fault were implemented. The voltage compensator was installed for preventing the voltage fluctuation of external power grid. And the detection method of mechanical vibration was used to prevent fault of water pump. The emergency constant pressure facility and rapid switching system of fault were designed and installed to prevent fault of constant pressure facility. At the same time, the emergency system of preventing leakage was designed and installed to reduce the risk of water leakage.Results: After the optimal emergency scheme was implemented, the ability of fault emergency of cooling water system of proton and heavy ion accelerator were enhanced and improved.Conclusion: The design and operation of large medical facilities need to fully consider the requirements for security and redundancy and scheme for faults diagnosis and emergency.