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Study on the Matching Method of Tooth Color Based on Color Difference

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Study on the Matching Method of Tooth Color Based on Color D...

2010 First International Conference on Cellular,Molecular Biology, Biophysics and Bioengineering(CMBB 2010)

作者： Chunnan Li 1,2 1.medical College,Jinggangshan university 2.College of Stomatology,The fourth military medical university 1.Ji’an,Jiangxi Province,china 2.xi’an,Shanxi Province,china Hongxia Zhao,Zhiyang Luo and xin Yuan engineering College Jinggangshan university Ji’an,Jiangxi Province,china

It is very necessary to determine tooth color quantitatively with scientific instrument in order to make objective *** to colorimetry theory,tooth color was determined by the PR-655 SpectraScan colorimeter and computer,test conditions chose D65 light source,normal direction illumination,and 0/45 observation. The consistent conclusions are gotten through comparing with VITA3D-Master shade guides by Experts and determined by PR-655 SpectraScan *** the determination method can realize the color matching between restoration and natural tooth to a great extent,and a definite foundation is established for the clinical research.

关键词： teeth color color difference colorimetry shade guide

Antibody-Based Tumor Markers

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Antibody-Based Tumor Markers

中国免疫学会第五届全国代表大会暨学术会议

作者： Chen Zhi-Nan, Bian Hui-Jie, Yang xiang-Min (Cell engineering Reasarch Centre & department of Cell Biologyfourth military medical university, xi’an, 710032)

Tumor markers are molecules occurring in blood or tissue that are associated with cancer and whose measurement or identification is useful in patient diagnosis or clinical management. They are either produced by tumor cells (tumor-derived) or by the body in response to tumor cells (tumor-associated). The ideal marker would be a " blood test" for cancer in witch a positive result would occur only in patients with malignancy, one that would cor-

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The bonding characteristic of L-and E-selectin contacting to (S)PSGL-1 in micropipette assay

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The bonding characteristic of L-and E-selectin contacting to...

2008年全国生物流变学与生物力学学术会议

作者： Yan Zhang~1,Ning Jiang~2,Cheng Zhu~2(1.Institute of biomedical engineering,department of Anatomy,Second military medical university,800 xiangyin Road,Shanghai 200433,P.R.china 2.Coulter department of biomedical engineering,Georgia Institute of Technology,Atlanta,GA 30332-0363,U.S.A.) Coulter department of biomedical engineering,Georgia Institute of Technology,Atlanta, GA30332-0363,U.S.A.

With acute inflammatory response,the adhesion of leucocytes to the vessel wall and subsequent rolling along endothelial surfaces involve specific selectin-ligand *** selectin family of adhesion molecules inciudes L-,E- and P-selectin.P-selectin glycoprotein ligand-1(PSGL-1 ),a sialomucin on leukocytes is not only a high-affinity ligand for P-selectin but also the ligands for E- and *** research showed selectin played a particularly important role in these rapid kinetics of leukocyte-endothelium ***

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Biological characteristics of hEGF gene modified HaCaT cells and its preliminary application in tissue engineering skin model

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Biological characteristics of hEGF gene modified HaCaT cells...

中华医学会烧伤外科学分会2009年学术年会

作者： Dahai Hu,Zhanfeng Zhang,Hongtao Wang,Weixia Cai,xiaozhi Bai,Huayu Zhu, Jihong Shi,Chaowu Tang department of Burns and Cutaneous Surgery,xijing Hospital,The fourth military medical university,xi''an,710032,PR china

＜正＞Cell-based skin tissue engineering have been effectively applied toward the development of grafting templates for wound repair and regeneration,but remain limited by inadequate availability of a robust epidermal cell *** cells are spontaneously immortalized human epidermal cell,which maintain full epidermal differentiation capacity and display a high capacity for in vitro expansion. Epidermal growth factor（EGF） has been well known as an important promoter for wound repair and *** this study,we deliverd human EGF（hEGF） gene to HaCaT cells by stable gene transfection method and the biological characteristics of the genetically modified cells was *** assay detection showed that HaCaT cells modified with hEGF gene could produced more than 390 ng/L of EGF in the *** vitro wound-healing and MTT assay analysis indicated that the hEGF gene transfected cells had significant faster migration ability and little reduced proliferation ability compared with normal HaCaT *** and western-blot analysis revealed that differentiation markers K19 and integrin-β1 were elevated in hEGF gene modified HaCaT ***,tumorigenicity test showed that the genetically modified cells was *** constructed engineered skin equivalents by organotypic coculture of hEGF gene modified HaCaT cells,normal HaCaT cells and normal *** result indicated that the epidermal morphogenesis was markedly improved and more thick stratified epidermis was formed in skin equivalents constructed by genetically modified *** findings suggest that HaCaT cells modified with hEGF gene might be a promising seed cell for construction genetically modified skin equivalents which can secrete epidermal growth factor as a means to accelerate wound repair and regeneration. Furthermore,that can provided a research tool for investigation of such topics as epidermal organization and differentiation.

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Effect of Electromagnetic Pulse Exposure on Brain Micro Vascular Permeability in Rats

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biomedical and Environmental Sciences 2009年第3期22卷 265-268页

作者： GUI-RONG DING KANG-CHU LI xiAO-WU WANG YONG-CHUN ZHOU LIAN-BO QIU JUAN TAN SHENG-LONG XU AND GUO-ZHEN GUO department of Radiation Medicine Faculty of Preventive MedicineFourth Military Medical UniversityXi’an 710032ShaanxiChina

Objective To observe the effect of electromagnetic pulse (EMP) exposure on cerebral micro vascular permeability in rats. Methods The whole-body of male Sprague-Dawley rats were exposed or sham exposed to 200 pulses or 400 pulses (1 Hz) of EMP at 200 kV/m. At 0.5, 1, 3, 6, and 12 h after EMP exposure, the permeability of cerebral micro vascular was detected by transmission electron microscopy and immunohistochemistry using lanthanum nitrate and endogenous albumin as vascular tracers, respectively. Results The lanthanum nitrate tracer was limited to the micro vascular lumen with no lanthanum nitrate or albumin tracer extravasation in control rat brain. After EMP exposure, the lanthanum nitrate ions reached the tight junction, basal lamina and pericapillary tissue. Similarly, the albumin immunopositive staining was identified in pericapillary tissue. The changes in brain micro vascular permeability were transient, the leakage of micro vascular vessels appeared at 1 h, and reached its peak at 3 h, and nearly recovered at 12 h, after EMP exposure. In addition, the leakage of micro vascular was more obvious after exposure of EMP at 400 pulses than after exposure of EMP at 200 pulses. Conclusion Exposure to 200 and 400 pulses (1 Hz) of EMP at 200 kV/m can increase cerebral micro vascular permeability in rats, which is recoverable.

关键词： Electromagnetic pulse Permeability Cerebral micro vascular Rats

Increased expression of phospho-cofilin in CA1 and subiculum areas after theta-burst stimulation of Schaffer collateral-commissural fibers in rat hippocampal slices

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Increased expression of phospho-cofilin in CA1 and subiculum...

中国神经科学学会第四次会员代表大会暨第八届全国学术会议

作者： Li ZHANG~1 Yan-Hai LI~2 Kai MENG~1 Tai-Zhen HAN~(1 *) 1 department of Physiology School of Medicine xi’an Jiaotong university xi’an 710061 china 2 The Key Laboratory of biomedical Information engineering of Ministry of Education and Institute of biomedical engineering School of Life Science and Technology xi’an Jiaotong university xi’an 710049 china

＜正＞Objective Activity-dependent structural plasticity of dendritic spines of pyramidal neurons in the central neuron system proposed to be a cellular basis of learning and ***-term potentiation（LTP）,considered critical to learning and memory formation,is accompanied by changes in cytoskeletal reorganization and morphology of dendritic ***,there is considerable uncertainty as to the nature of the *** present study tested whether immunoreactive phospho-cofilin（p-cofilin）,an index of altered actin filament assembly,could be increased by theta-burst stimulations（TBS）,which is an effective stimulation pattern for inducing LTP in the *** The slope of fEPSPs evoked by TBS to Schaffer collateral-commissural fibers in hippocampal slices was measured,and p-cofilin expression was examined using immunofluorescence *** Saturated LTP was produced by multiple TBS episodes to Schaffer collateral-commissural fibers in the hippocampal CA1 area,and TBSs also increased immunoreactive p-cofilin expression in the stratum radiatum of the hippocampal CA1 area and pyramidal layer of the *** These results suggest that LTP induction is associated with altered actin filament ***,the CA1 and subiculum areas of the hippocampal formation possibly cooperate with each other in important physiological functions, such as learning and memory,or pathological diseases,such as epilepsy.

关键词： theta-burst stimulation fEPSP synaptic plasticity actin p-cofilin hippocampus

17Beta-estradiol Promotes Proliferation of Rat Synthetic Vascular Smooth Muscle Cells by Up-regulating Cyclin D_1

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生物医学工程学杂志 2005年第S1期22卷 71-72页

作者： Zhao-Hui YANG~(1,3) Jian SONG~(1,2,△) Yu WAN~2 Bei CHENG~1Bang-Chang CHENG~(3) xi-Chang CHEN~11(Faculty of Anatomy and Embryology, Wuhan university School of Medicine, Wuhan 430071, china)2(Key Laboratory of Allergy and Immune-related Diseases, and Center for medical Research, Wuhan university, Wuhan 430071, china) 3(department of Thoracic-cardiovascular Surgery, Renmin Hospital of Wuhan university, Wuhan 430060, china)

HEMA-胶原抗菌药物缓释膜促SD大鼠烧伤创面愈合的实验研究

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生物医学工程研究 2004年第3期23卷 160-163页

作者：黄沙金岩吴红邓天政宋绍华第四军医大学口腔医学院组织工程实验中心陕西西安710032 第四军医大学药物化学教研室陕西西安710032 第四军医大学口腔医院颌面外科陕西西安710032

观察甲基丙烯酸羟乙酯 (HEMA) -胶原抗菌药物缓释膜对烧伤创面的促愈合作用。制备包裹有磺胺嘧啶银 (SD -Ag)的HEMA -胶原抗菌药物缓释膜 ,观察测定其对SD大鼠深Ⅱ度烧伤模型的作用。结果表明 ,实验组大鼠不同时间点的创面愈合率均高于... 详细信息

观察甲基丙烯酸羟乙酯 (HEMA) -胶原抗菌药物缓释膜对烧伤创面的促愈合作用。制备包裹有磺胺嘧啶银 (SD -Ag)的HEMA -胶原抗菌药物缓释膜 ,观察测定其对SD大鼠深Ⅱ度烧伤模型的作用。结果表明 ,实验组大鼠不同时间点的创面愈合率均高于对照组 (P <0 .0 5 ) ,愈合时间明显缩短 (P <0 .0 5 )。组织学观察表明实验组愈合创面上皮化程度好于对照组。HEMA -胶原抗菌药物缓释膜可有效地促进大鼠深Ⅱ度烧伤创面愈合 ,具有应用前景。

关键词：甲基丙烯酸羟乙酯-胶原抗菌药物缓释膜大鼠烧伤创面促愈合作用动物模型敷料磺胺嘧啶银

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医学检查报告数据库管理系统的研制

生物医学工程与临床 2000年第2期4卷 111-114页

作者：张虹马兴荣西安医科大学生物医学工程系西安710061 第四军医大学西京医院

建立一个计算机化的医学检查报告的书写与管理数据库系统。用基于Ｗｉｎｄｏｗｓ９５的Ｖｉ－ｓｕａｌＦｏｘＰｒｏ５．０数据库软件建立报告资料的关系型数据库，并编写出能自动运行的程序和交互操作的用户界面。系统具有出报告、调... 详细信息

建立一个计算机化的医学检查报告的书写与管理数据库系统。用基于Ｗｉｎｄｏｗｓ９５的Ｖｉ－ｓｕａｌＦｏｘＰｒｏ５．０数据库软件建立报告资料的关系型数据库，并编写出能自动运行的程序和交互操作的用户界面。系统具有出报告、调报告和系统管理等功能。能自动记忆每次写入的报告并分类保存以供直接调用；报告保存在计算机硬盘和软盘中，可用多种方式查询调用；内设多处排错程序，保证了系统的安全可靠。系统以关系型数据库书写和保存医学检查报告，打印的报告规范美观，出报告过程极为快捷，保存和调用迅速便利，资料管理安全简洁，安装和维护方便。根本改变了传统的手工报告书写和管理方式。

关键词：医学检查报告数据库管理系统计算机程序设计