Zongguang ZHOU；Youqin CHEN；Yongyang YU；Huaiqing CHEN
More and more evidences come out to support that the functionality of adhesion molecules are influenced by the surface microtopology of cell carrier or substrate. Adhesive molecules usually express on the microvilli of a cell, providing a well - defined spatial configuration to mediate the adhesions to the counterpart molecules on the apposed surface. In a pioneering work,comparisons were done by using immunoglobin (IgG) binding to their counterpart receptors CD16 expressed onto the membrane of transfected K562 cells (rough surfaces) and coated onto the surface of human red blood cells (smooth surfaces), respectively[1]. Here we extended this idea by developing a biomembrane force probe to elucidate the effect of surface microtopology and membrane stiffness on the kinetics of selectin/ligand binding.
作者：Botao shaw；Mian long 刊期： 2003年第z1期
应力与生长的关系,一直是广大生物力学工作者所关心的课题,不同的功能治疗和各种训练都可以使肌肉的收缩特性发生变化,本研究设计了对大鼠后肢骨骼肌的收缩特性进行测试的装置,利用该装置对一月龄大鼠后肢两组骨骼肌在电刺激下的收缩特性进行了测试,为研究大鼠骨骼肌在长期不同应力刺激水平及不同功能治疗等因素对其收缩特性改变打下基础.
作者：陈孟诗；王岩；黄京月 刊期： 2003年第z1期
人造皮临床使用价值与柔软性、机械强度有极密切的关系,壳聚糖-明胶人造皮是以壳聚糖、明胶、甘油为基本原料,戊二醛为交联剂的产品.本文对所研究的壳聚糖-明胶人造皮进行了不同的方法处理,发现以20%甘油溶液进行人造皮后处理,将使壳聚糖-明胶人造皮机械强度指标达到扯断强度6.5MPa、扯断伸长率210%、撕裂强度5.3KM/m;柔软性指标达到含水率76%,透气空达较大镜下孔径.
作者：叶春婷；邹海燕；彭燕豪；任国梅 刊期： 2003年第z1期
Neutrophil activation and adhesion play important roles in many inflammatory processes, but their importance in both acute pancreatitis (AP) and pancreatitis- associated microcirculatory derangements has not been defined.The aim was to better understand flow -induced the changes of [ Ca2+ ]i, the polymerization of filamentous actin( F -actin),the expression of (2 -intgrin(CD18) and L- selectin(CD62L) on neutrophil in pancreatic microcirculation of AP.
作者：Zongguang ZHOU；Youqin CHEN；Yongyang YU；Huaiqing CHEN 刊期： 2003年第z1期
血压波升支前小波是指在左心室等容收缩初期在主动脉根部血压的一个小幅波动,此小幅波动与冠状动脉狭窄程度相关.本文研究了这一小幅波动沿主动脉传播时产生的变化.
作者：陈先农；王富刚 刊期： 2003年第z1期
The decline of cardiac contractility is a serious outcome of heart failure, and therefore, the measurement and evaluation of cardiac contractility and its reserve is of great clinical significance. However, there are at least two problems in this aspect:( 1 ) the concept of cardiac contractility has serious defects, including the absence of any potential indicator that can be measured in situ and is free of significant criticism and, particular, the absence of any acceptable noninvasive indicator, and the impossibility of separating the effects of contractility changes from those of load or heart rate; (2) the requirement of the telemetering of cardiac contractility for the patients, athletes, and ordinary persons has not been met.
作者：Shouzhong XIAO 刊期： 2003年第z1期
Unstabilitaion would be occurred after multilevel anterior decompression on the cervical spine, sometimes the failure of fusion would happen followed with pseudoarthrosis of the cervical spine. This paper is to review the clinic results of the 38 cases treated with more than three levels anterior decompression and to test the biomechanical stabilization of the cervical spine with 6 fresh human cervical specimens.
作者：Zhuojing LUO 刊期： 2003年第z1期
安装假肢是截肢患者恢复活动能力和外观的一种主要康复手段,随着社会发展,对假肢质量的的要求越来越高.接受腔的设计是下肢假肢成功与否的关键之一,由于小腿残端的软组织不适合承重,必须通过接受腔的设计,优化残肢表面接触应力的分布,使假肢穿着舒适安全.
作者：贾晓红；张明；李超俊 刊期： 2003年第z1期
目的探索人表皮干细胞(KSC)的筛选和体外培养方法,了解表皮干细胞在体外快速扩增的条件及其分化特性,为研究创伤愈合和组织工程提供良好的细胞模型;
作者：揭彬；罗向东；伍素华 刊期： 2003年第z1期
目的探讨颞下颌关节髁突软骨细胞(mandibular condylar cartilage,MCC)的骨架系统随机械力的变化过程及其是否受到细胞内钙及其IP3通道的影响.
作者：张旻；王美青；王景杰 刊期： 2003年第z1期
目的内皮化及平滑肌细胞种植效果是心血管组织工程中的主要研究课题,以往的方法都是用扫描电镜来鉴定内皮化及平滑肌细胞种植效果,但这种方法使用不方便且价格昂贵,不便于立即知道实验结果,因而我们探讨银染技术在心血管组织工程中应用的可行性.
作者：糜建红；朱楚洪；应大君 刊期： 2003年第z1期
Platelet-derived growth factor beta - receptors ( PDGF beta - R) undergo directed movements in living cells, a process mediating cell migration. Motile actin filaments possibly contribute to such movements. We investigate here the interaction of PDGF beta - R with actin filaments, and a possible role for focal adhesion kinase (FAK) , an actin - associated protein, in the regulation of such a process by magnetic manipulations of the PDGF beta - R and genetic modulations of the FAK gene in cultured mouse embryonic fibroblasts.
作者：Shu Q. LIU；Christopher TIECHE；Yan - chun LI；Paul K. ALKEMA 刊期： 2003年第z1期
一体化假肢是以高分子聚合物为材料,从接受腔到假腿一体成型的新型下肢假肢;而传统型假肢的假腿往往是一根金属杆,接受腔和金属杆之间用金属连接件连接.很明显,一体化假肢比传统型假肢更经济、美观、轻便,具有较大的研究价值,但目前一体化假肢还只是一个概念,尚未批量应用于临床.近,一些学者和机构开始致力于一体化假肢的研发,但尚未涉及对一体化假肢的应力分析.由于一体化假肢与传统型假肢在结构上的差异,因此对一体化假肢进行应力分析具有重要的意义.有限元方法已广泛应用于假肢领域,故本研究采用有限元方法对一体化假肢进行应力分析.
作者：刘展；樊瑜波；张明 刊期： 2003年第z1期
本文的目的是利用定量的骨功能适应性模型建立一种描述骨质疏松的力学模型.目前国内外,尤其是国外,对于骨质疏松的研究很多,但大都集中在药物对骨质疏松的治疗,通常以骨质疏松结构的生化指标为研究对象,对骨质疏松进行的实验研究较多,建立定量模型的基础性理论研究还未见报道.
作者：宫赫；朱兴华 刊期： 2003年第z1期
We studied the role of p53 gene in the biorheologiy and biology in murine erythroleukemia cell line ( MEL), with the goal of understanding the influence of this tumor suppressor gene on the deformability and metastasis of tumor cells,. Experiments were performed on MEL - M and MEL - W, which expressed a mutant p53 gene and over - expressed the wild - type p53 gene, respectively, as well as the MEL cells transfected with an empty plasmid.
作者：Zongyao WEN；Weijuan YAO；Li GU；Chien SHU 刊期： 2003年第z1期
Adherent platelets are an important part of both thrombus formation and in certain stages of atherogenesis. Both the formation of atherosclerotic lesions and deposition of platelet thrombi develop not randomly and not everywhere in the circulation, but localize at certain particular areas in the circulation. In fact, platelet thrombi in vivo have been found at sites downstream from bifurcations stenoses and venous valves. In these areas, the blood flow is disturbed and separation of streamlines from the vessel wall and formation of vortices (eddies) are likely to occur. This strongly suggests the involvement of hemodynamic factors in the localization of the vascular diseases.
作者：Xiaoyan Deng；Guixue Wang；Yang Yang 刊期： 2003年第z1期
在司法鉴定实践中,时常遇见饮酒后,较轻微的暴力打击头面部引起致死性外伤性蛛网膜下腔出血的案例,引发死因分析和死亡责任关系问题的诉讼纠纷.
作者：于晓军；王家权；王典；吕俊耀；祁秀敏 刊期： 2003年第z1期
原癌基因c-fos是一种立即早期基因,其表达的蛋白FOS是一种核蛋白,可结合到宿主细胞DNA中负责细胞分裂的基因上,影响基因的转录和复制,促进细胞的有丝分裂.采用免疫细胞化学方法,分别观察受交变拉伸应变和压应力作用下,体外培养的大鼠成骨细胞中FOS蛋白的表达情况及其在细胞中的定位,探索力学作用促进成骨细胞增殖的机理.
作者：张西正；郭勇；赵云山；武继民；李瑞欣 刊期： 2003年第z1期
正常心肌细胞兴奋-收缩藕联依赖于细胞膜上的钠、钙离子通道,早期胚胎心肌细胞的兴奋-收缩藕联机制要复杂一些,因为这些细胞的离子通道发育并不完善,细胞内钙库与正常成熟细胞差异较大,这些差异完全可能引起细胞兴奋-收缩藕联机制的变化.
作者：张建保；BK Fleischmann；P Sasse 刊期： 2003年第z1期
为探讨低切应力在动脉粥样硬化形成中的作用机制,观察了低切应力对动脉粥样硬化血管平滑肌细胞凋亡的影响.本文采用雄性新西兰白兔(体重2.5-3.0kg,n=54),左颈外动脉结扎,术后分别普通饲料、高脂饲料喂养,建立低切应力兔颈总动脉粥样硬化模型.设对照组(n=6),高脂组(n=24),普饲组(n=24).时相点为2、4、8、12周.
作者：王溪涛；张炎；姜宗来 刊期： 2003年第z1期
医用生物力学杂志
主管:中华人民共和国教育部
主办：上海交通大学
