2.Design of a portable music therapeutic instrument based on embedded system
Qiancheng LIU ; Haoyu JIN ; Xin TAN ; Binfeng XU
Chinese Journal of Tissue Engineering Research 2009;13(52):10318-10320
Music electrotherapy is a fusion of music therapy and electrotherapy,as a new digital medical technique,it has been concerned by medical workers.In this paper,a portable music therapeutic apparatus based on ARM-WINCE was developed.This apparatus could offer electrical stimulation,audio signal and visual signal provided by LCD.The core of system was ARM9 processor S3C2440,and using Windows CE as GUI development tool.The therapeutic apparatus has been developed and passed the detection.It has the features of small size,high reliability,low cost,and strong alternating capability,which is optimum in the fields of home health care and clinical research.
3.Employment-oriented training programs to cultivate the medical equipment professional personnel
Binfeng XU ; Haoyu JIN ; Shengsheng LAI ; Yarong HU ; Qiancheng LIU ; Bo XIAO
Chinese Journal of Medical Education Research 2012;11(3):284-288
With the constant change of medical electronic instruments ( MEI ) professionals' needs,the professional personnel training programs need to be adjusted and improved.Based on the analysis of the MEI professional students'employment situation,this article discusses several key issues of the personnel training program,and puts forward some suggestions of improving the MEI professional's personnel training program,in combination with the actual running in the training,the training objective,course arrangement,practice teaching etc..
4.Effects of Erxian Decoction and its separate prescriptions on the levels of luteinizing hormone and follicle-stimulating hormone in anterior pituitary cells from female rats
Binfeng DONG ; Jianrong SHI ; Zhaoqin FANG ; Dongyuan GUAN ; Qin LIU ; Zhonghua WU
Journal of Integrative Medicine 2007;5(6):665-9
OBJECTIVE: To investigate the effects of Erxian Decoction (EXD), a traditional Chinese compound herbal medicine and its separate prescriptions such as Wenshen Yijing Recipe (WSYJR, a recipe for warming kidney and replenishing essence), Ziyin Xiehuo Recipe (ZYXHR, a recipe for nourishing yin and dispersing fire) and Tiaoli Chongren Recipe (TLCRR, a recipe for regulating thoroughfare and conception vessels) and some extracts from EXD on the levels of LH and FSH in the primary cultured anterior pituitary cells from female rats. METHODS: EXD, its separate prescriptions and traditional Chinese herbal extracts from EXD were added directly to the incubators. The levels of LH and FSH were tested by radioimmunoassay. RESULTS: The levels of LH and FSH in the supernatant of anterior pituitary cells treated by EXD or its separate prescriptions including ZYXHR and TLCRR were increased significantly as compared with those in the blank control. There was a tendency for stimulating the secretions of LH and FSH in the WSYJR-treated group too. Dimethyl sulfoxide as the solvent of icariin and curculigoside could interfere with the results. CONCLUSION: EXD and its separate prescriptions such as ZYXHR and TLCRR can increase the levels of LH and FSH significantly.
5.Risk Factor Analysis of Acute Kidney Injury After Isolated Heart Valve Prosthesis Implantation in Relevant Patients
Xianzeng XU ; Ting ZHOU ; Yangchun LIU ; Jing QIAN ; Xiaoyong XIE ; Binfeng LEI ; Xu FENG ; Baoshi ZHENG
Chinese Circulation Journal 2016;31(8):785-788
Objective: To analyze the risk factors of acute kidney injury (AKI) after isolated heart valve prosthesis implantation (HVPI) in relevant patients. Methods: We retrospectively studied 400 patients who received isolated HVPI in our hospital. The demographic characteristics and pre-, intra-, post-operative information were collected to conduct uni- and multi-variantanalysis. Results: The pre-operative serum creatinine level in 400 patients was 85.0 (72.0, 98.0) μmol/L and post-operative level was 104.5 (80.0, 146.3) μmol/L, the elevation was 20.9% (1.6%, 57.9%),P<0.05. Multi Logistic regression analysis indicated that age>50years (OR=2.12, 95% CI 1.13-3.95),hypertension history (OR=4.07, 95% CI1.23-13.47), cardiopulmonary bypass time>180 minutes (OR=5.38, 95% CI 1.63-17.77), post-operative hemoglobin<70 g/L (OR=0.20, 95% CI 0.06=0.74), serum glutamic-pyruvic transaminase>100 u/L (OR=12.10, 95% CI 2.28-64.23), pleural fluid drainage at the day of operation> 500 ml (OR=2.12, 95% CI 1.13-3.95), extubation after 24 hours of operation (OR=3.94, 95% CI 2.07-7.52), combining low cardiac output syndrome (OR=4.64, 95% CI 1.06-20.29) were the independent risk factors for AKI occurrence in patients after HVPI, allP<0.05. Conclusion: Post-HVPI AKI was associated with many factors. At prior operation, it was mainly related to the age and hypertension; during theoperation, it was mainly related to cardiopulmonary bypass time; at post-operation, it was mainly related to delayed extubation, low cardiac outputsyndrome, anemia, increased pleural lfuid drainage and serum glutamic-pyruvic transaminase.
6.Chemical constituents from Imperata cylindrica.
Xuan LIU ; Binfeng ZHANG ; Guixin CHOU ; Li YANG ; Zhengtao WANG
China Journal of Chinese Materia Medica 2012;37(15):2296-2300
Chemical investigation of Imperata cylindrica led to the isolation of thirteen compounds using various chromatographic techniques. The structure of these compounds were identified as: three phenylpropanoids, 1-(3,4,5-trimethoxyphenyl)-1,2,3-propanetriol ( 1 ), 1-O-p-coumaroylglycerol (2), 4-methoxy-5-methyl coumarin-7-O-beta-D-glucopyranoside (3); four organic acids, 4-hydroxybenzene carboxylic acid(4), 3,4-dihydroxybenzoic acid (5), vanillic acid (6), 3, 4-dihydroxybutyric acid (7); one phenolic compound, salicin (8); and five triterpenes, namely, arundoin (9), cylindrin (10), fernenol (11), simiarenol (12), glutinone (13) by their physicochemical properties and spectral data analysis. Among them, compounds 1-8 were isolated from the genus Imperata for the first time.
Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Hydroxybenzoates
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chemistry
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isolation & purification
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Molecular Structure
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Poaceae
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chemistry
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Triterpenes
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chemistry
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isolation & purification
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Vanillic Acid
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chemistry
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isolation & purification
7.Finite element analysis of biomechanical properties after implantation of movable artificial lumbar spine
Yanbiao WANG ; Jun CHEN ; Jingyi ZHANG ; Chen CAO ; Jialin WANG ; Binfeng LIU ; Bo ZHANG ; Xiaoyu LIAN ; Yanzheng GAO
Chinese Journal of Trauma 2021;37(1):37-43
Objective:To investigate the effect in lumbar mobility and stress of the facet joint and end plate after implantation of the movable artificial lumbar spine so as to lay a biomechanical foundation for its clinical application.Methods:Total lumbar CT data of a healthy adult male were selected to construct a finite element analysis model and its effectiveness was validated (physiological group). Two groups were replicated after removing the L 3 vertebral body and adjacent discs of the model in physiological group. One group was placed with each component of the movable artificial lumbar spine to construct the non-fusion model (non-fusion group). The other group was placed with titanium cage, titanium plate and other to construct the fusion model (fusion group). The models in the three groups were loaded with 500 N axial load and 10 Nm axial load, and the torque load was used to simulate the movement in six directions: forward flexion, backward extension, left and right lateral bending, and left and right torsion. The lumbar mobility and stress peak and distribution of the proximal facet joints (J 1-2, J 4-5), L 2 inferior endplate and L4 superior endplate at the three model operating sites (L 2-3, L 3-4) and adjacent segments (L 1-2, L 4-5) under the same conditions were compared. Results:The range of motions of the surgical site in flexion, extension, left bending, right bending, left torsion and right torsion were L 2-3of 3.9°-8.7° and L 3-4 of 3.6°-8.4° in non-fusion group, significantly increased compared with fusion group (L 2-3 0.1°-0.2°, L 3-4 0.1°-0.1°) and slightly increased compared with physiological group (L 2-3 2.3°-6.0°, L 3-4 2.3°-7.1°). The range of motions of the adjacent segments in the above six directions were L 1-2 of 1.4°-4.3° and L 4-5 of 1.4°-6.0° in non-fusion group, smaller than those in fusion group (L 1-2 2.1°-6.1°, L 4-5 3.3°-8.6°) and similar to those in physiological group (L 2-3 2.3°-6.0°, L 3-4 2.3°-7.1°). The peak values of von Mises stress in the proximal facet joints were J 1-2 of 7.07-19.21 MPa and J 4-5of 6.12-12.99 MPa in non-fusion group, similar to those in physiological group (J 1-2 8.42-18.53 MPa, J 4-5 7.49-11.70 MPa) and smaller than those in fusion group (J 1-2 10.54-21.16 MPa, J 4-5 10.63-16.13 MPa). The maximum von Mises stress of the L 2 inferior endplate and L 4 superior endplate in the above six directions was 29.39-54.72 MPa and 32.31-47.87 MPa in non-fusion group, significantly increased compared with the L 2 inferior endplate (21.20-42.07 MPa), L 4 superior endplate (22.50-36.76 MPa) and L 2 inferior endplate (11.04-29.55 MPa) in fusion group and the L 4 superior endplate (13.12-21.32 MPa) in physiological group. Conclusion:Compared with the traditional fusion prostheses, the placement of the movable artificial lumbar spine can reconstruct the range of motion of the surgical site in the direction of flexion, extension, lateral bending and torsion, greatly reduce the impact on the stress of adjacent facet joints and the range of motion of adjacent segments, and theoretically reduce the incidence of prosthesis subsidence.
8.Finite element analysis of the influence of new anterior cervical spine memory compression fixator on adjacent segments
Hongbo WANG ; Jiantao LIU ; Ang LI ; Shiqing FENG ; Kun GAO ; Gongwei ZHAI ; Jialin WANG ; Binfeng LIU ; Yanzheng GAO
Chinese Journal of Orthopaedics 2020;40(16):1098-1108
Objective:To compare the effect of the new anterior cervical spine memory compression fixation device (GYZ memory alloy plate) and traditional titanium plate on the range of motion (ROM) and stress of the adjacent segment after anterior cervical discectomy and fusion.Methods:An adult male volunteer was recruited for a fee. After excluding cervical malformations, fractures, infections and other diseases, C 3-C 7 thin-layer CT scans were performed. Import the scanned data into the finite element modeling software to establish the finite element model of the physiological group and verify itseffectiveness. After C 5,6 discectomy, the intervertebral fusion device was inserted, and the anterior fixation was assisted by a conventional titanium plate or a new type of fixator. Thus, the finite element model of the traditional titanium plate group and the new fixer group was established. The three models were imported into the finite element analysis software ANSYS 16.0, and a vertical downward axial load of 73.6 N was loaded to simulate the head weight and the torque of 1.0 N·m to simulate the cervical spine flexion, extension, left lateral bending, right lateral bending, left rotation and right rotation.Compare the changes of intervertebral disc ROM and stress in adjacent segments of physiological group, traditional titanium plate group and new type fixator group. Results:The intervertebral disc ROM under six conditions was basically similar to the results of previous studies, and the model was effective. In the adjacent segment C 4,5, the three groups of activities in the flexion, extension, left lateral bending, right lateral bending, left rotation and right rotation conditions were: physiological group 3.9°, 4.2°, 3.7°, 3.7°, 2.2° and 2.2°, traditional titanium plate group 4.6°, 4.7°, 4.3°, 4.4°, 3.3° and 3.1°, and new fixture group 4.4°, 4.3°, 4.0°, 4.2°, 2.8° and 2.7°. The maximum stresses of the intervertebral discs under three different working conditions were: physiological group 1.81, 1.60, 3.99, 2.06, 3.63 and 3.41 MPa, traditional titanium plate group 1.86, 1.67, 4.21, 2.16, 3.82 and 3.63 MPa, and new fixture group 1.84, 1.64, 4.17, 2.14, 3.78 and 3.58 MPa. In the adjacent segment C 6,7, the activities of the three groups in six working conditions were: physiological group 3.1°, 3.2°, 2.5°, 2.5°, 1.2° and 1.3°, traditional titanium plate group 4.2°, 3.7°, 3.4°, 3.0°, 2.1° and 2.2°, and new fixture group 3.5°, 3.3°, 2.5°, 2.7°, 1.8° and 1.9°.The maximum stress of the intervertebral disc under three different working conditions was: physiological group 0.45, 0.66, 1.12, 0.85, 0.84 and 0.82 MPa, traditional titanium plate group 0.62, 0.93, 1.55, 1.24, 1.44 and 1.27 MPa, and new fixture group 0.61, 0.92, 1.54, 1.22, 1.07 and 1.24 MPa. The ROM and disc pressure of adjacent segments in the conventional titanium plate group were higher than those of the new fixator group. Conclusion:Compared with the traditional titanium plate, the new type of anterior cervical memory compression fixator has less effect on the ROM and stress of adjacent segments, which may slow down the process of adjacent segments degeneration to a certain extent.
9.Roles of IL1R2 in tumorigenesis
LIU Yinting ; LU Binfeng ; JIANG Jinting
Chinese Journal of Cancer Biotherapy 2018;25(8):822-829
IL-1有IL-1α和IL-1β两种亚型,其受体家族包括I型和II型两种受体形式(IL1R1和IL1R2)以及一种受体辅助蛋白 (IL1RAP)。在IL1RAP帮助下,IL-1α和IL-1β均可与ILR1形成IL-1/IL1R1/IL1RAP复合物,激活下游信号转导通路,发挥生物学 作用; IL1R2由于缺少胞内TIR结构域无法介导IL-1信号通路,而能通过与IL1R1竞争性结合抑制IL-1的作用。IL1R2起初被认 为是一种IL-1的诱捕受体,但在后续的研究中发现其在多种肿瘤中有异常表达,且多数呈现异常上调状态,仅在少数肿瘤中低表 达,其表达与许多肿瘤的发生发展以及预后有着重要关联。本文针对IL1R2在肿瘤发生发展中的作用方面的相关研究进展进行 综述。
10.Effect of combined catheter ablation of atrial fibrillation and left atrial appendage closure on left atrial structure compared with a single procedure.
Zhentao FEI ; Ming LIU ; Pengcheng YAO ; Mingzhe ZHAO ; Changqi GONG ; Mu CHEN ; Yudong FEI ; Binfeng MO ; Rui ZHANG ; Yichi YU ; Yuli YANG ; Qian WANG ; Wei LI ; Pengpai ZHANG ; Jian SUN ; Qunshan WANG ; Yigang LI
Chinese Medical Journal 2023;136(24):3010-3012