1.Oncoproteomics and its application
Basic & Clinical Medicine 2006;0(10):-
Proteomic research first came to the fore with the introduction of two-dimensional gel electrophoresis and proteomics has been increasingly applied to cancer research with the wide-spread introduction of mass spectrometry and protein chip.As important research tools,oncoproteomics that targets the entire cancer-specific protein network has already been applied in cancer research.In this article the development of the oncoproteomics and its applying in cancer is reviewed.
2.Research progress on the abnormal metabolism of macrophages in rheumatoid arthritis pathogenesis
Yue-ye WANG ; Yan CHANG ; Wei WEI
Acta Pharmaceutica Sinica 2020;55(12):2827-2833
Macrophages play an important role in the pathogenesis of rheumatoid arthritis (RA). Previously, studies have shown that changes in the metabolism of glucose, choline, amino acids and lipids in macrophages of patients with RA can lead to the accumulation of metabolic intermediates which can act as inflammatory signaling molecules to aggravate the inflammation and cause complications. Therefore, a full understanding of the metabolic process of macrophages in RA patients will lay the foundation for macrophage-targeted therapy of RA. In this review, not only the role of macrophage abnormal metabolism in the pathogenesis of RA but also the research progress on macrophage-targeted drugs in RA treatment will be discussed.
3.Characteristics of hospitalised psychiatric patients with co-morbid physical illnesses
Yue WANG ; Shuli WEI ; Xiaofang YE
Chinese Journal of Rehabilitation Theory and Practice 2008;14(5):491-492
目的了解住院精神病患者并发躯体疾病的特点及解决办法。方法对住院期间并发躯体疾病的精神病患者进行调查。结果和结论住院精神病患者所患躯体疾病常涉及多个系统和器官;患者及家属对检查配合度不高,躯体疾病与精神疾病的治疗可能存在矛盾,导致住院期间并发躯体疾病精神病患者诊断、治疗困难。
4.Comparison of the energy response for several dosimeters used in mammography
Jianchao WANG ; Baorong YUE ; Kedao WEI
Chinese Journal of Radiological Medicine and Protection 2008;28(2):188-190
Objective To evaluate whether eight kinds of dosimeters satisfy the clinical mammography dose measurement through the comparison of energy response.Methods According to GB/T 19629-2005,the energy responses of eight available mammography dosimeters were determined for ten standard radiation qualities in the range 25-40 kVp at the SSDL using a refrence-class dosimeter.Results Except 2000S,the energy response factors of all the other dosimeters were consistent within ±5%.Conclusions The energy response of ionizing chamber type is better than other types of dosimeters.
5.Establishment of standard operation procedure of the teaching base for emergency medicine simulation
Ying YUE ; Wei WANG ; Guitong ZHOU
China Medical Equipment 2015;(6):121-123
Objective:To study the significance of standard operating procedures of construction emergency medical simulation teaching-based. Methods:Emergency medical simulation teaching base on the construction of standard operating procedures mode. Results:SOP model was used in emergency medicine in practice teaching and management, it improved the connotation of practical teaching system construction;and was helpful to improve the practice teaching content construction. Evaluation is beneficial to improve the practice teaching system. Evaluation is beneficial to improve the practice teaching system. To strengthen the emergency medical simulation base radiation ability, promote the standardization of practice teaching and management level, this itself is a kind of innovation, but still need to constantly improve and improve. Conclusion:Explore with Chinese characteristics of Chinese and western medicine combined with emergency medicine education mode, cultivate high-quality talents in the field of traditional Chinese and western medicine emergency.
6.Evaluation performance of calibration apparatus for dosimeters used in X-ray mammography
Jianchao WANG ; Baorong YUE ; Kedao WEI
Chinese Journal of Radiological Medicine and Protection 2015;35(5):371-375
Objective To fulfill the requirements for uncertainty of the calibration apparatus for dosimeters used in X-ray mammography through setting standard radiation quality at the SSDL and developing calibration procedures.Methods According to IEC 61267-2005 and IAEA TRS No 457 to recommend RQR-M and RQA-M series standard radiation quality,the calibration apparatus was evaluated for long term stability of the radiation field over 8 years from 2006 to 2014,including 10 response quantities,such as field homogeneity,change rate of mean air kerma and scatter radiation contributions and so on.In addition,the reference dose instrument was traced back to the PSDL of PTB in Germany by post during 2008 and 2012.Results The field homogeneity (φ 40 mm) relative error was ± 1.4%.The long term stability of the calibration apparatus was less than ± 2% (limits of variation).The scatter radiation contributions at their points of test were below 0.12%.The calibration factors traced to PTB were 0.999-1.000.As a result of the calibration apparatus,the expanded uncertainty was ± 3% (k =2,95% confidence interval).Conclusions The calibration apparatus may meet the requirements of IEC 61267-2005 and IAEA TRS No 457 and has obtained the license of metrology from national regulatory authority.The laboratory now performs very well to calibrate dosimeters used in X-ray mammography.
7.Study on the features extraction of ERP evoked by the mental arithmetic tasks based on the sample entropy
Wei YUE ; Liqing SONG ; Suogang WANG
International Journal of Biomedical Engineering 2015;38(4):201-205
Objective To study the feature extraction methods for the event related potential (ERP) evoked by mental arithmetical tasks through the sample entropy, in order to enhance the features of electroencephalograph (EEG) signals for brain computer interface (BCI).Methods Three types of mental arithmetic tasks including a simple counting, a random number and a stroke of Chinese character counting were proposed and 16 channel EEG signals were recorded from eight healthy subjects.The sample entropy method was then applied in characteristic signal complexity analysis.The characteristic and difference of signal complexity of ERP evoked by three types of mental arithmetical tasks were explored.Results The entropy value for EEG signal evoked by non-target stimulus was higher than that by the target stimulus with the significant difference (P<0.01).The entropy of the mental arithmetic based on the Chinese characters counting task was significandy higher than that of the other two tasks (P<0.05).EEG signals evoked by target/non-target were fundamentally signals under the state of attention or non-attention.Conclusions For the Chinese characters counting task, more complex information have been processed by the brain and the non-linear connection between nerve cells are much more complicated and a higher entropy value is achieved.In summary, the mental arithmetic task can effectively activate the relevant brain regions and the sample entropy can distinguish signals evoked by target or non-target stimuli.
8.Study on the feature extraction of combination of mVEP and SSVEP evoked by visual stimulus
Wei YUE ; Jinxiu SUN ; Suogang WANG
International Journal of Biomedical Engineering 2015;38(5):266-270,后插4
Objective To propose A brain computer interface paradigm based on the combination of the motion-onset visual evoked potential(mVEP) and the steady state visual evoked potential(SSVEP).Methods By designing a 3 ×3 character spelling matrix,a vertical white bar in the column of matrix which flicks at a pre-set frequency induced the corresponding SSVEP.The vertical white bar also randomly moved horizontally so as to induce mVEP.Then the two types of features were extracted by time frequency analysis.Finally the support vector machine was applied to compare the target character identification rate between the proposed paradigm and the single mVEP paradigm.Results The target character identification accuracy of subject S1 and S6 was improved by about 2% comparing the proposed paradigm to the single paradigm.Other subjects achieved the improvement of 6% for the same performance comparison.The averaged identification accuracy of the proposed paradigm could reach 91.4% if the same stimulus repeated for more than 3 times,while the accuracy of single paradigm achieved 85.6%.Conclusions The proposed brain computer interface paradigm could effectively induce many kinds of brain feature signals.The identification accuracy by the proposed paradigm is higher than that by the single paradigm for various numbers of repeated trials.The proposed paradigm of combined visual stimulus merges the motion induction and the flash frequency modulation together and hence reduces the stimulation time and increases the efficiency of the feature extraction.
9.Operative treatment of fractures of the calcaneus for earthquake patients
Jiabin YUAN ; Yue WANG ; Dan WEI
Orthopedic Journal of China 2006;0(06):-
[Objective]To investigate the characteristics and clinical results of open reduction and internal fixation for fractures of the calcaneus for earthquake patients.[Method]The fractures were classified according to Sanders classification.Fifteen cases(24 fractures) were treated by open reduction and internal fixation.Thirteen cases(21 fractures) were followed up from four,four and half months(average of 4.2 months).[Result]All fractures had been healed.Functional results were evaluated using Marryland Foot Score and excellent results occured in 9(42.9%),good in 10(47.6%),fair in 2(9.5%) and the satisfactory rate was 90.5%.Two cases of incision infection were cured by skin flap transplantation.[Conclusion]Open reduction and internal fixation is an effective method for treatment of displaced intra-articular fractures of the calcaneus.Earthquake patients are not fit for early operation.They should be treated with operation after normal functional index and stable psychological situation.
10.Eatimation of effective doses from a dental cone beam computed tomographic scanner
Wei LUO ; Yue ZHAO ; Jianchao WANG
Chinese Journal of Radiological Medicine and Protection 2017;37(3):222-225
Objective To calculate effective dose based on the dose-area Product (DAP) measured in dental cone beam computed tomograhic (CBCT) scanning and using a conversion coefficient.Methods The method of the DAP was used to calculate the effective dose from KODAK 9500 dental CBCT scanner with fields of view (FOV) of 16 cm×15 cm and 12 cmu×8 cm.The DAP-values (mGy · cm2) were measured using a transmission ionization chamber connected to an electrometer (Doseguard 100,RTI Electronics AB,Sweden) and the chamber was placed directly on the exit of the X-ray tube.All measurements were repeated three times and averaged on each FOV data.The conversion coefficient of 0.080 μSv/mGy · cm2 was used to estimate the effective dose on the basis of DAP values,which was quoted from a literature.Results DAP values were found between the two FAOs to vary from 512 to 1 083 mGy · cm2,and the effective doses calculated with 0.080 μSv/mGy · cm2were 41 to 87 μSv.The effective doses given in this paper was lower than those reported in other literatures.Conclusions DAP measurement was found to be well defined and easy-to-use method of determining effective dose for some CBCT Units.However,determination of specific conversion coefficient in the CBCT must be further developed.