黄岂平；王红兵；卢晓；秦建；蔡绍皙
Understanding of the biomechanics of human foot and ankle complex can help in designing a better foot support. Experimental approaches are limited to interfacial pressure measurement between the foot and supporting surface and gross motion tracking of major foot joints. The measurement of internal stress/strain and individual bony movement of the foot and ankle,which is essential in enhancing knowledge on the biomechanics of the foot, is still sparse due to experimental difficulties. Computer simulation provides an efficient alternative to acquire those important clinical parameters.
作者：Ming ZHANG；Jason Tak - Man CHEUNG；Yubo FAN 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
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
TNF-α是一种多功能的细胞因子,具有杀伤或抑制肿瘤细胞,提高中性粒细胞吞噬能力等多种重要的生物学功能;同时也发现各种原因引发的感染性休克、炎症、自身免疫性疾病均表现为TNF-α表达水平过高.大量的研究结果表明,TNF-α参与诸如脓毒症、感染、自身免疫疾病、移植物排斥、移植物抗宿主病等多种人类疾病.随着TNF晶体结构的获得,目前已着手设计治疗策略以抑制或抵消TNF-α的活性.其中,国内外正在寻找中和TNF-α的抗体作为抑制TNF-α活性的手段.
作者：李宝霞；叶志义；龙勉 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
脊柱椎骨是脊椎动物体内的坚硬组织,它与椎间盘组成脊柱,对承受和传递载荷及维持运动姿态起着重要作用.近年来各种交通事故、工伤事故,运动训练不慎等都常会造成脊椎骨损伤.因此脊柱损伤是当前骨科,矫形外科和生物力学工作者们研究的重要课题之一.
作者：董心；马洪顺 刊期： 2003年第z1期
为了阐明低切应力在动脉粥样硬化形成中的作用机制,为动脉粥样硬化防治提供实验基础,本文建立了低切应力+高脂的动脉粥样硬化动物模型,观察了低切应力对动脉粥样硬化形成的影响.
作者：王溪涛；黄荣国；覃开蓉；张炎；姜宗来 刊期： 2003年第z1期
切应力可调节细胞的增殖和凋亡,从而影响血管的重建.研究低切应力对完整血管平滑肌细胞原癌基因蛋白c-Fos和c-Myc表达的影响,可以初步探讨切应力引起血管平滑肌细胞增殖和调亡的机制.本文应用血管体外应力培养系统,将一段完整的猪颈总动脉在体外进行培养,控制定常流和血管腔内压力100mmHg,在中(20dyn/cm2)、低(5dyn/cm2)切应力条件下体外培养1、6、24h,采用免疫组化和计算机图象分析方法观察血管壁平滑肌细胞c-Fos和c-Myc表达的情况.
作者：姜宗来；刘艳春；刘波；张峰；张炎 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
青光眼是国家防盲工作的重点,闭角型青光眼是其中的主要类型,致盲率很高,瞳孔阻滞形成和虹膜组织材料变性是发病的主要体征.近百年的研究没有给出虹膜材料力学特性的定量表达和瞳孔阻滞力的量化描写.主要原因是虹膜材料试样小、中有瞳孔,待测力学量小,无法进行常规测量.我们开发了瞳孔水密缝合构建虹膜腔体进行测量的实验方法.
作者：刘志成；林丁；宋红芳；张昆亚；乔春燕 刊期： 2003年第z1期
玫瑰花瓣实验作为考察细胞间特异性相互作用的简单实验,已被免疫学家广泛用于评价受体与配体间的功能性作用,以及区分白细胞亚型[1～6].早期实验是将人T淋巴细胞和羊红细胞混合而发生粘附现象,大的淋巴细胞表面会吸附上小的红细胞,形成玫瑰花瓣结构.由于该实验不能把玫瑰花瓣尺寸分布与分子性质定量地联系起来,故迄今只是一种定性方法.我们根据已建立的小系统概率动力学模型设计新的玫瑰花瓣实验,能够把玫瑰花瓣尺寸分布与受体/配体密度及它们的反应亲和性联系起来,从而为临床免疫检测提供定量依据和方法学基础.
作者：陈娟；黄俊；龙勉 刊期： 2003年第z1期
已有的研究表明细胞在周期拉伸作用下会发生取向调整,细胞长轴将垂直于应变方向.同时周期拉伸会促进细胞的增殖和迁移.Sumpio等的研究表明,周期拉伸有促进细胞迁移的作用,并认为周期拉伸促进细胞迁移和形态改变与rho蛋白P21有关.我们试图揭示周期拉伸对细胞增殖和迁移的的影响是否具有方向性.
作者：黄岂平；王红兵；卢晓；秦建；蔡绍皙 刊期： 2003年第z1期
口腔种植体在植入过程中可产生机械损伤,从而在种植体界面形成由骨基质和血凝块组成的环状坏死区域(本文称为修复区).在标准的二阶段种植法中,种植体首先埋藏于颌骨内三到六个月(愈合阶段),然后通过第二次手术连接义齿或上部结构,开始承担功能载荷(功能阶段).因此,种植体在愈合期间并不直接承受载荷,修复区只间接经历由于颌骨在功能载荷作用下的变型所引起的应力.本文的目的在于建立一个关于种植体界面愈合的生物力学模型,并用有限元方法数值模拟种植体界面在愈合阶段和功能阶段的塑建改建过程.
作者：荣起国；J.Lenz；K.Schweizerhof；H.J.Schindler 刊期： 2003年第z1期
构建全生物化组织工程血管是血管组织工程研究中有吸引力的研究方向之一.本文采用猪颈总动脉脱细胞胶原作三维支架构建全生物化组织工程血管,取得了初步成功.
作者：张炎；刘太华；刘波；李玉泉；张秀花；姜宗来 刊期： 2003年第z1期
An important goal of cardiac revascularization is to improve the left ventricular ejection fraction ( LVEF), which is an important long - term prognostic clinical indicator for patients with coronary artery disease. Prediction of cardiac function improvement after revascularization would be very helpful for patients with severe left ventricular dysfunction who are at high surgical risk. Our objective is to develop a quantitative method to estimate post -revascularization LVEF prior to revascularization.
作者：Haichao HAN；Stamatios LERAKIS 刊期： 2003年第z1期
Introduction The coupling between the endothelium and blood flow is an important biomedical problem and has drawn extensive research. Endothelial cells (ECs) are known to adapt their shapes and functions in response to applied shear flow.Shear Stress being regarded as a primary triggering signal for cellular remodeling, it is important to understand the interaction mechanism between applied shear flow and endothelial cells.
作者：Xiaoheng LIU；Xiong WANG；Huaiqing CHEN 刊期： 2003年第z1期
骨结构形态与力学环境相适应称为骨的功能适应性,它们的关系就是通常所说的受力与生长的关系.松质骨是骨重要的组成部分,是由不同板、杆状的骨小梁构成的网架结构.松质骨功能适应性的研究不仅是骨科临床发展的重要基础,而且有广泛的科学研究前景和重要的临床价值和健康意义.
作者：张春秋；朱兴华 刊期： 2003年第z1期
Mammalian cells subjected to conditions of spaceflight and the microgravity environment ofspace; manifest a number of alterations in structure and function. Among the most notable changes incells flown on the Space Shuttle are reduced growth activation and decline in growth rate in the totalpopulation[1-3]. Other changes include chromosomal aberrations[4], inhibited locomotion[5] , alteredcytokine production[6, 7], changes in PKC distribution[8] , and increased apoptosis[3]. Human lymphocytesrespond poorly to mitogenic stimulation in microgravity[2] and cells of the lymphoblastoid T cell line,Jurkat, are growth arrested[3].
作者：Xiaonan HOU；Mian LONG；Zulai TAO 刊期： 2003年第z1期
Leukocytes roll along the endothelium of postcapillary venules in response to inflammatory and thrombotic processes. The rolling under hydrodynamic shear forces is a first step in directing leukocytes out of the blood stream into sites of inflammation and is mediated by the selectins, a family of extended, modular, and calcium -dependent lectin receptors[1,2]. The interactions between P - , E - or L - selectins and their counter ligand P - selectin glycoprotein ligand - 1 ( PSGL - 1 ) play important a crucial role in the processes.
作者：Zhiyi YE；Baoxia LI；Mian LONG 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
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
